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5. DX225LC-3
6. Operation & maintenance manual

• Page 1
  950106-00365ANA-1 January 2015 Excavator Operation & Maintenance Manual DX225LC-3 Serial Number 1001 and Up Serial Number 50001 and Up (Europe Only)
• Page 3
  Operation & Maintenance Manual DX225LC-3 Excavator Serial Number 1001 and Up Serial Number 50001 and Up (Europe Only) DOOSAN and the DOOSAN logo are registered trademarks of DOOSAN Corporation in the United States and various other countries around the 950106-00365ANA-1 world.

• Page 5: Table Of Contents

  Heater and Air Conditioner Control Panel……..2-74 Stereo ………………..2-80 Miscellaneous Electrical Devices…………. 2-81 Seat Adjustment…………….2-83 Ceiling Cover ………………. 2-87 Front Windows …………….. 2-88 Door Side Latch …………….2-90 Cabin Storage Compartments …………2-91 Sunglass Case…………….. 2-91 DX225LC-3 Table of Contents…

• Page 6
  Machine Setup Position for Maintenance ………. 4-5 Maintenance Handling Access…………4-7 Handling Oil, Fuel, Coolant …………..4-8 Electrical System Maintenance…………4-13 Recommend Fuel, Coolant, and Lubricant ……..4-14 Fluid Capacities …………….4-18 Table of Recommended Lubricants ……….4-19 Maintenance Intervals…………..4-21 Table of Contents DX225LC-3…
• Page 7
  Transportation …………….5-1 Loading and Unloading …………..5-1 Lifting Machine………………. 5-8 Troubleshooting …………….6-1 Electrical System …………….6-1 Engine………………..6-2 Turbocharger ………………6-6 Cooling Fan………………6-7 Lubrication System …………….6-7 Hydraulic System …………….6-8 Air Compressor (Optional) …………..6-9 Table of Contents DX225LC-3…
• Page 8
  Standard Specification …………… 7-1 Overall Dimensions…………….7-2 Disassembled Parts, Dimension and Weight……..7-4 Ground Pressure…………….7-6 Digging Force………………7-7 Working Range ……………… 7-8 Excavator Rated Lift Capacity Tables……….7-10 Approximate Weight of Workload Materials……..7-30 Index ……………….8-1 Table of Contents DX225LC-3…

• Page 9: Foreword

  YOUR DOOSAN EQUIPMENT. Keep this manual in the cabin so it is always available. If it is lost, order another one from your DOOSAN distributor. If there are any questions, contact your DOOSAN distributor. This manual may illustrate options and accessories not installed on your equipment.

• Page 10
  Rollover Protective Structure (ROPS) and can result in death or serious injury. Contact your DOOSAN distributor for further information. Product Identification Number (PIN) A PIN number is stamped on upper frame under boom foot (Figure 1).
• Page 11
  Safety Alert Symbol is present, no matter which signal word appears next to it. DANGER DANGER — This signal word is used on safety messages and safety labels and indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Foreword DX225LC-3…

• Page 12: Aem Safety Manual (North America Only)

  The AEM Safety Manual delivered with the machine gives general safety information. The AEM Safety Manual must be read and understood before beginning operation or maintenance and is not intended to replace the Operation and Maintenance Manual delivered with the machine. Figure 4 Foreword DX225LC-3…

• Page 13: Federal Emission Control Systems

  Limited Warranty for Non-road Engines (CI) Owner’s Warranty Rights and Obligations The U.S. Environmental Protection Agency (EPA) and DOOSAN INFRACORE are pleased to explain the Federal Emission Control System Warranty on your 2011 and later non-road engine. DOOSAN INFRACORE warrants the engine was designed, built and equipped so as to conform at the time of sale with all applicable regulations of the EPA and of the California ARB.

• Page 14
  You are responsible for initiating the warranty process. The EPA suggests that you present your heavy duty off- road engine to a DOOSAN INFRACORE dealer as soon as a problem exists. The warranty repairs should be completed by the dealer as expeditiously as possible.

• Page 15: Safety

  Safety DX225LC-3 Safety…

• Page 16: Safety Decals

  Safety Decals With Text Safety decals with text consist of a signal word, pictorial and a text message panel. In some cases, a pictorial panel may not be part of the safety decal. Safety DX225LC-3…

• Page 17
  The safety information panel uses pictorials and/or prohibition signs to identify the actions necessary to avoid the hazard. Avoidance Panel Horizontal Configuration Hazard Avoidance Panel Panel FG018723 Figure 1 Safety DX225LC-3…
• Page 18
  Information and Location for Safety Decals 24 21 15 EX1402409 Figure 2 Safety DX225LC-3…
• Page 19
  Information and Location for Safety Decals (Continued) 19, 7, 8 EX1402395 Figure 3 Safety DX225LC-3…
• Page 20
  • TO LEAVE THE EXCAVATOR: Lower the attachment and dozer blade (if equipped) to the ground and make sure all controls are in neutral. Stop engine and remove key. Lower safety lever to LOCK position. Safety DX225LC-3…
• Page 21
  Allow machine to cool. Tip cap and open slowly to relieve pressure. Entanglement in Rotating Parts (950205-03791) WARNING ROTATING PARTS CAN CAUSE DEATH OR SERIOUS INJURY Keep away from belt and rotating parts. Stop engine EX1301181 before servicing. Safety DX225LC-3…
• Page 22
  Flush your eyes with water for 10 — 15 minutes. Get medical attention immediately. Battery Disconnection (950205-03784) IMPORTANT AVOID ELECTRICAL COMPONENT DAMAGE Disconnecting the battery while the engine is running can cause damage to electrical components. Disconnect battery only when the engine is turned OFF. Safety DX225LC-3…
• Page 23
  EX1301186 11. Pressurized Gas and Fluid (950205-03782) WARNING AVOID DEATH OR SERIOUS INJURY • Heat or impact can cause the accumulator to explode. • Keep away from flame. EX1301187 • Do not weld on or drill into accumulator. Safety DX225LC-3…
• Page 24
  HOT SURFACE CAN CAUSE SERIOUS BURNS • Do not touch hot surface. • Allow to cool before servicing. EX1301189 14. Emergency Exit (950205-03810) IMPORTANT If primary exit is blocked, use glass breaking tool to break glass for secondary exit. EX1301190 Safety DX225LC-3 1-10…
• Page 25
  • Do not activate Intelligent Floating Boom Control when tracks are raised. • Do not raise tracks when control is activated. Refer to «Intelligent Floating Boom Control (Optional)» section of this manual for more information. Safety DX225LC-3 1-11…
• Page 26
  Only use Ultra Low Sulfur Diesel (ULSD) fuel with this machine. EX1301196 EX1301194 18. ROPS Warning (Optional) (950205-03861) WARNING AVOID DEATH OR SERIOUS INJURY • Do not weld on or drill holes in the protective structure. • Replace ROPS, if damaged or modified. 950205-03861 950205-03861 EX1301197 Safety DX225LC-3 1-12…
• Page 27
  INCORRECT OIL LEVEL OR INCORRECT FLUID CAN CAUSE HYDRAULIC SYSTEM DAMAGE Place the excavator with the boom and arm fully extended with the attachment on the ground before checking hydraulic fluid level. Use only ISO VG#46 hydraulic fluid. EX1301199 Safety DX225LC-3 1-13…
• Page 28
  Identifies lift point and tie down point location. 950205-03815 EX1301201 23. Tie down (Optional) (950205-03816) Identifies tie down point location. EX1301203 24. Electric Welding Attention (950212-02440) IMPORTANT Electrical welding on the frame can damage the engine’s electronic control unit (ECU). 950212-02440 EX1402396 Safety DX225LC-3 1-14…
• Page 29
  Operate the travel control levers smoothly to avoid sudden starts or stops. • Before leaving the operator’s seat, make sure to lock out all control systems and stop engine to avoid accidental activation of the controls. EX1402247 Safety DX225LC-3 1-15…

• Page 30: General

  Know the rated load capacity, speed range, braking and steering characteristics, turning radius and operating clearances. Keep in mind that rain, snow, ice, loose gravel, soft ground, slopes etc., can change operating capabilities of your machine. Safety DX225LC-3 1-16…

• Page 31
  Proper Work Tools and Attachments Only use work tools and attachments that are recommended by DOOSAN for use on DOOSAN machines. When installing and using optional attachments, read instruction manual for attachment, and general information related to attachments in this manual. Because DOOSAN cannot anticipate, identify or…
• Page 32
  Additional protection for operator’s cabin could be required such as an Operator Protection Guard (OPG) or window guards. Contact your DOOSAN distributor for information on available protective guards. HAOA110L Figure 5 To prevent personnel from being struck by flying objects, keep personnel out of work area.
• Page 33
  Stay clear of all rotating and moving parts. Unless instructed, never attempt adjustments while machine is moving or while engine is running. Safety DX225LC-3 1-19…
• Page 34
  FG019095 Figure 9 To prevent hot oil or coolant from spraying out, stop engine, wait for oil and coolant to cool. Using gloves, slowly loosen cap to relieve pressure. FG019096 Figure 10 Safety DX225LC-3 1-20…
• Page 35
  Do not operate machine near any flame. Exhaust shields (if equipped) protect hot exhaust components from oil spray or fuel spray in case of a break in a line, hose, or seal. Exhaust shields must be correctly installed. Safety DX225LC-3 1-21…
• Page 36
  Always clean fluid spills. Do not use gasoline or diesel fuel for cleaning parts. Use commercial nonflammable solvents. HDO1045I Figure 13 Safety DX225LC-3 1-22…
• Page 37
  Do not weld on lines or on tanks that contain flammable fluids. Do not flame cut lines or tanks that contain flammable fluid. Clean any such lines or tanks thoroughly with a nonflammable solvent before welding or flame cutting. Safety DX225LC-3 1-23…
• Page 38
  Keep a first aid kit in storage compartment (Figure 18) and keep another kit at work site. Check kit periodically and keep it properly supplied. • Keep emergency numbers for doctor, ambulance service, hospital and fire department readily available. FG018460 Figure 18 Safety DX225LC-3 1-24…
• Page 39
  Never modify the operator’s cabin by welding, grinding, drilling holes or adding attachments unless instructed by DOOSAN in writing. Changes to the cabin can cause loss of operator protection from rollover and falling objects, and result in death or serious injury.
• Page 40
  Never modify the operator cabin by welding, grinding, drilling holes or adding attachments unless instructed in writing by DOOSAN. Changes to the cabin can cause loss of operator protection from rollover and falling objects, and can result in death or serious injury.
• Page 41
  Reinstallation, recertification and/or replacement of system may be necessary. Contact your DOOSAN distributor for available safety guards and/or recommendations to protect against objects that could strike operator’s cabin. Make sure that all other work site crew members are kept away from excavator when operating.
• Page 42
  Grip handle firmly and use sharp point to break glass. • Be careful also not to slip on broken pieces of glass on ground. WARNING FG015808 Figure 22 AVOID DEATH OR SERIOUS INJURY Protect your eyes when breaking the glass. Safety DX225LC-3 1-28…

• Page 43: Transportation

  When driving up or down ramps, the center of gravity of machine will change suddenly causing the tracks to drop down to the ramps or trailer. This will occur at the joint between the ramps and trailer. Travel slowly over this point. Safety DX225LC-3 1-29…

• Page 44
  • When passing over bridges or structures on private land, check that structure is strong enough to support weight of machine. Before traveling on public roads, check with appropriate authorities and follow their instructions. Safety DX225LC-3 1-30…

• Page 45: Operation

  Before performing checks, move machine to an area where there are no obstructions, and operate slowly. Do not allow personnel near machine. Know maximum operating dimensions of your machine. Safety DX225LC-3 1-31…

• Page 46
  If people come too close to a moving machine, they may be struck or caught by machine, and this can result in death or serious injury. Safety DX225LC-3 1-32…
• Page 47
  Use points marked by arrows in diagram when getting on or off machine. Do not carry tools or supplies when you mount or dismount the machine. FG020102 Figure 25 FG020103 Figure 26 Safety DX225LC-3 1-33…
• Page 48
  When standing up from operator’s seat, always place safety lock lever securely in «LOCK» position. If you accidentally move work equipment levers when they are not locked, the machine could suddenly move and cause damage, death or serious injury. Safety DX225LC-3 1-34…
• Page 49
  If original color of webbing in these areas is extremely faded and/or webbing is packed with dirt, webbing strength may be reduced. NOTE: Contact your DOOSAN distributor for seat belt system replacement parts. WARNING AVOID DEATH OR SERIOUS INJURY…
• Page 50
  Inspect equipment and repair immediately if there are problems with visual aids. If machine cannot be fixed immediately, DO NOT use the machine. Contact your DOOSAN distributor and arrange for repairs. Work Site Rules •…
• Page 51
  Refer to “Starting Engine With a Booster Cable” on page 3-11, for proper procedure in this manual. • Connect positive (+) cable first when installing cables and disconnect negative (-) cable first when removing them. Safety DX225LC-3 1-37…
• Page 52
  Also, a white residue, because of water vapor inside engine, can form at the engine oil fill location. These conditions will not affect engine performance or damage the engine or other exhaust system components. Safety DX225LC-3 1-38…
• Page 53
  • On work sites where there is a hazard of flying or falling objects, or of objects entering operator’s cabin, check that door and windows are securely closed. Install additional guards, if work site application requires them. Safety DX225LC-3 1-39…
• Page 54
  Always operate machine with idler wheels to front under cabin and drive sprockets to rear. Know permitted ground pressure. Ground pressure of the machine may change depending on attachment and load. Keep height and length of attachment in mind. Safety DX225LC-3 1-40…
• Page 55
  Do not move bucket over head of other personnel or over the operator’s seat of dump trucks or other hauling equipment. The load may spill or bucket can hit dump truck causing property damage or cause death or serious injury. Safety DX225LC-3 1-41…
• Page 56
  20 — 30 cm (8 — 12 in) above ground, and Figure 32 travel at low speed. • Do not turn on slopes or travel across slopes. Always go down to a flat place to change position of the machine, then travel backup the slope again. Safety DX225LC-3 1-42…
• Page 57
  Always attach wire rope onto left and right hooks and secure in position. • If engine on problem machine will not start or there is a failure in brake system, always contact your DOOSAN distributor. • Never go between towing machine and towed machine during towing operation.
• Page 58
  After the machine is parked, allow engine to run for five minutes before stopping the engine. This allows hot areas of engine to cool gradually. • Do not leave operator’s seat when there is a raised load. Safety DX225LC-3 1-44…
• Page 59
  Machine movement will occur if any controls are moved. This can result in death or serious injury. Always move hydraulic lockout control to «LOCK» position before stopping off engine or immediately after engine stops running. FG018379 Figure 36 Safety DX225LC-3 1-45…
• Page 60
  Turning off electrical current with battery disconnect switch. • Park machine where risk of theft, burglary and damage is minimized. • Removing valuables from cabin such as cellular phone, computer, radio and bags. See “Long Term Storage” on page 3-77, for more information. Safety DX225LC-3 1-46…
• Page 61
  Tension of all belts. • Air pressure. • Air cleaner. • Batteries and electrical connections. • Lubricate all greasing points. • Wipe off grease from piston rods. • Inspect for signs of nests (i.e. birds, rodents, etc.) Safety DX225LC-3 1-47…

• Page 62: Maintenance

  Untrained operators and failure to follow instructions can result in death or serious injury. • Never service DOOSAN equipment without instructions. • Always lower bucket and blade to ground before doing any maintenance. Use correct procedure to lift and support excavator.

• Page 63
  Maintenance procedures which are not in this manual must be performed ONLY BY QUALIFIED SERVICE PERSONNEL. Always use genuine DOOSAN replacement parts. • Only authorized personnel should service and repair the machine. Do not allow unauthorized personnel into work area.
• Page 64
  Figure 37 maintenance, it can result in death or serious injury. Attach a «DO NOT OPERATE» warning tag to starter switch or to controls before servicing or repairing equipment.  Warning tags are available from your DOOSAN distributor. Safety DX225LC-3 1-50…
• Page 65
  Hitting hard metal pins, bucket teeth, cutting edges or bearings with a hammer, can cause metal pieces to break or fly off resulting in serious injury. Always wear safety goggles and leather gloves. Keep other personnel away. Safety DX225LC-3 1-51…
• Page 66
  Check electrical wires daily for wires that are loose or frayed. Tighten all loose, and repair or replace all frayed, electrical wires before operating machine. Remove all flammable materials and debris from the engine compartment, exhaust system components and hydraulic lines. Safety DX225LC-3 1-52…
• Page 67
  Do not smoke while you are checking battery electrolyte level. Electrolyte is an acid. Electrolyte can cause personal injury. Do not allow electrolyte to contact skin or eyes. Always wear safety goggles and face protection when working with batteries. Safety DX225LC-3 1-53…
• Page 68
  (a solution or suspension of calcium hydroxide, i.e. slaked lime in water). After the work has been completed, the gloves must be washed in limewater and then discarded. Safety DX225LC-3 1-54…
• Page 69
  Hydrofluoric Acid Burn Jelly or something similar. Seek medical advice. Symptoms may not appear until several hours afterwards. Discard gloves, rags etc. which are suspected of having touched burned rubber that contains fluorides. Safety DX225LC-3 1-55…
• Page 70
  • Wear protective clothing. • Make sure there is good ventilation. • Remove all flammable objects and make sure a fire extinguisher is available. Safety DX225LC-3 1-56…
• Page 71
  Never remove counterweight or front attachment unless the upper structure is in-line with the lower structure. FG018594 Never rotate the upper structure once the counterweight or Figure 45 front attachment has been removed. Safety DX225LC-3 1-57…
• Page 72
  Do not work under the machine if track shoes are lifted off ground and the machine is supported only with work equipment. If any control levers are moved, or there is damage to hydraulic system, work equipment or the machine will suddenly drop causing death or serious injury. Safety DX225LC-3 1-58…
• Page 73
  Contact your DOOSAN distributor for assistance. • Wear safety goggles and leather gloves when working on an accumulator. Hydraulic oil under pressure can penetrate skin and result in death or serious injury. If fluid enters skin or eyes, get immediate medical attention from a physician familiar with this injury.
• Page 74
  Do not allow weight or equipment loads to remain suspended and unsupported. Lower work group to ground before leaving operator’s seat. Do not use hollow, cracked or unsteady wobbling supports. Do not work under any equipment supported only by a lifting jack. HDO1042L Figure 49 Safety DX225LC-3 1-60…
• Page 75
  If any loose bolts are found, stop work and tighten to specified torque. If any damaged hoses are found, stop operations immediately contact your DOOSAN distributor replacement parts. Safety DX225LC-3 1-61…
• Page 76
  LOW LEVEL line. This can cause an explosion. Periodically check battery electrolyte level and add distilled water to bring electrolyte level to FULL LEVEL line. • Before maintaining or working with batteries, turn starter switch to «O» (OFF) position. Safety DX225LC-3 1-62…
• Page 77
  After charging, secure battery back in machine. When repairing or welding electrical system, wait for approximately one minute after turning engine starter switch key «OFF». Then disconnect negative (-) terminal of battery to stop flow of electricity. Safety DX225LC-3 1-63…

• Page 78: Environment And Circumstances

  • When working on or from top of buildings or other structures, check if structure can support weight of machine and attachment. If a building structure collapses, this can cause death or serious injury. Safety DX225LC-3 1-64…

• Page 79
  The risk also increases on sloping ground. If it is not possible to dig a trench and adequately slope its sides, always install shoring equipment. Loose ground may easily give way under weight of the machine. Safety DX225LC-3 1-65…
• Page 80
  4 m (13′ 1″) 66.0 kV 5 m (16′ 5″) 154.0 kV 8 m (26′ 3″) 275.0 kV 10 m (32′ 10″) • Always contact the power company responsible before beginning work near high voltage power lines. Safety DX225LC-3 1-66…
• Page 81
  Working in Contaminated Environment When working within area which is contaminated or where there is a health risk, check local regulations and contact your DOOSAN distributor for assistance with identifying what additional safety precautions need to be taken. Safety DX225LC-3…
• Page 82
  In addition, check the water separator, and drain it if required. The fuel filter, if frozen, may interrupt the flow of fuel. Periodically remove water from the fuel tank, drain water from the filter, and replace the Safety DX225LC-3 1-68…
• Page 83
  Change antifreeze each year to keep corrosion inhibitor at full strength. • If necessary, flush cooling system periodically to keep passages clear. Avoid use of water with a high alkali content which increases scale and rust formation. Safety DX225LC-3 1-69…
• Page 84
  Keep cooling system fins and cooling areas clean. Blow out with compressed air, if possible, as often as necessary. WARNING AVOID DEATH OR SERIOUS INJURY Wear goggles when using compressed air to prevent face or eye injury. Safety DX225LC-3 1-70…
• Page 85
  Lubricate machine as prescribed on lubrication chart on machine or “Lubrication and Service Chart” on page 4-16, in this manual. Shorten lubricating intervals for parts exposed to salt water. Check operating controls to ensure proper functionality and that they return to «NEUTRAL» when released. Safety DX225LC-3 1-71…
• Page 86
  Diesel engine exhaust contains products of combustion which can be harmful to your health. Always run engine in a well ventilated area. If you are in an enclosed area, vent exhaust to outside. Safety DX225LC-3 1-72…
• Page 87
  OSHA or other work site rules, laws and regulations. Use a respirator, water spray or other means to control dust. Silica dust can cause lung disease and is known to the state of California to cause cancer. Safety DX225LC-3 1-73…
• Page 88
  Sound pressure level (LpA) at operator 70 dB(A) position (Measurement according to ISO 6396) Sound power level (LwA) around the machine (Measurement according to 2000/14/EC with 103 dB(A) applicable appendices and measuring method according to ISO 6395) Safety DX225LC-3 1-74…
• Page 89
  Use a seat in conformance with ISO 7096 and keep the seat maintained and adjusted: • Adjust the seat and suspension for the weight and size of the operator; • Inspect and maintain the seat suspension and adjustment mechanisms. Safety DX225LC-3 1-75…
• Page 90
  Provide breaks to reduce long periods of sitting; • Avoid jumping down from the cab or access system; • Minimize repeated handling and lifting of loads; • Minimize any shocks and jolts during sports and leisure activities. Safety DX225LC-3 1-76…

• Page 91: Operating Controls

  These symbols will only show there is a problem. IMPORTANT When any one or more of the warning symbols on the control console comes «ON», immediately stop operation. Investigate and correct the problem before proceeding with operation. DX225LC-3 Operating Controls…

• Page 92: Component Locations

  COMPONENT LOCATIONS 9 10 11 12 13 14 15 16 FG019399 Figure 1 Operating Controls DX225LC-3…

• Page 93
  Swing Motor Lower Roller Air Cleaner Battery Swing Bearing Center Joint Seat Upper Roller Cabin Sprocket Boom Cylinder Travel Motor Work Lever (Joystick) Track Link and Shoe Travel Lever Suction Filter Arm Cylinder Return Filter Boom Pumps DX225LC-3 Operating Controls…

• Page 94: Operator’s Area

  OPERATOR’S AREA FG019401 Figure 2 Operating Controls DX225LC-3…

• Page 95
  Travel Pedal Defroster Vent Footrest Face Vent Safety Lever Rear Vent Air Conditioner Unit Foot Vent Display Monitor Stereo Storage Space (Large) Hour Meter Storage Net Joystick Height Adjustment Knob Storage Space (Heating and Cooling) Step Fuse Box DX225LC-3 Operating Controls…

• Page 96: Operational Controls And Panels

  OPERATIONAL CONTROLS AND PANELS 21 31 18 15 14 16 19 17 9 10 8 7 6 1 22 29 32 35 11 EX1300582 Figure 3 Operating Controls DX225LC-3…

• Page 97
  Quick Coupler Switch (Optional) One Touch Deceleration Button Air Compressor Switch (Optional) Intelligent Floating Boom Warning Light Switch (Optional) Temporary Reset Button Lower Wiper Switch (Optional) Jog Switch Control Panel Travel/Swing Alarm Switch Jack Assembly (Optional) Micro Phone (Optional) DX225LC-3 Operating Controls…
• Page 98
  2. Heater and Air Conditioner Control Panel This panel is used to control air conditioner and heater in OUTSIDE operator’s cabin. Refer to “Heater and Air Conditioner AUTO AUTO Control Panel” on page 2-74, for more information. TEMP MODE FG000029 Figure 5 Operating Controls DX225LC-3…
• Page 99
  In this position, the engine emergency stop system is «OFF». In this position, «EMERGENCY STOP» is selected. The engine will stop. NOTE: When released, the switch will return to its FG016039 original position «O» (OFF) position. Figure 8 Operating Controls DX225LC-3…
• Page 100
  In this position, all illumination lights and work lights are turned «ON». IMPORTANT FG016017 Figure 11 Do not leave display monitor or work lights «ON» when the engine is not running. Leaving lights «ON» with the engine stopped will discharge batteries. Operating Controls DX225LC-3 2-10…
• Page 101
  «ON». FG016019 Figure 13 11. Audio Control Panel The audio system can be remotely controlled using this panel. SCAN FG000018 Figure 14 Operating Controls DX225LC-3 2-11…
• Page 102
  Auto Scan: When pressing scan button for more than a SCAN half-a-second, the frequencies are automatically scanned to the next higher one and will continue until button is again pressed to stop the scan. FG000022 Figure 18 Operating Controls DX225LC-3 2-12…
• Page 103
  NOTE: Using soapy water or synthetic detergent instead of window cleaning fluid can damage FG000243 the wiper blade or painted surfaces. Use Figure 22 standard window cleaning fluid: SSK703 Operating Controls DX225LC-3 2-13…
• Page 104
  To prevent air compressor motor from overheating, do not run it or attempt to run it for more than 30 continuous minutes. If the air compressor motor runs for more than 30 continuous minutes, the system will automatically shut off. Operating Controls DX225LC-3 2-14…
• Page 105
  FG016022 will also sound while swinging. Figure 27 NOTE: If machine is only equipped with a travel alarm device, the alarm will not sound when swinging even if the switch is in the «II» position. Operating Controls DX225LC-3 2-15…
• Page 106
  Open the cap when using it.  NOTE: Avoid damage to electrical system. This socket is designed for small electrical capacity devices only. Do not use this socket for FG017015 large electrical capacity devices. Figure 30 Operating Controls DX225LC-3 2-16…
• Page 107
  Figure 33 AVOID INJURY Before using any attachment in a work application, be sure to check its functional control.  Make sure that desired movement or action is being activated control, e.g. opening/closing, clockwise/counterclockwise, crowd/dump, etc. Operating Controls DX225LC-3 2-17…
• Page 108
  FG018709 Figure 35 26. Photo Sensor The photo sensor detects the radiant energy of the sun. In «AUTO MODE» the air conditioner will automatically adjust the air temperature based on detected radiant energy. FG018278 Figure 36 Operating Controls DX225LC-3 2-18…
• Page 109
  The hour meter is used to indicate the total number of operating hours on the engine. The meter will flash every four seconds when the engine is running to indicate that it is functioning properly. HAOA601L Figure 39 Operating Controls DX225LC-3 2-19…
• Page 110
  When the button is pressed, the engine speed is immediately reduce to «LOW IDLE» rpm. When the button is pressed again, the engine speed will return to the setting of the engine speed control dial. FG027213 Figure 41 Operating Controls DX225LC-3 2-20…
• Page 111
  Pressing the power mode selector button will display the available modes on the main window. Place the selection bar by turning the jog switch and select the mode by pressing the jog switch. FG018104 Figure 45 Operating Controls DX225LC-3 2-21…
• Page 112
  The window will go back to the previous window when the button is operated in any other window than the main window (ESC). If a pop-up window appears, pressing the button will remove pop-up. FG018107 Figure 48 Operating Controls DX225LC-3 2-22…
• Page 113
  Turn switch (1, Figure 51) on the bottom to «ON», set Figure 51 switch (2) on the top to the center position ( ), and then press switch (3). Turn switch Figure clockwise counterclockwise to increase or decrease the volume. DX225LC-3 Operating Controls 2-23…

• Page 114: Display Monitor

  «ON» and the alarm buzzer will sound for about two (2) seconds. During this functional check, a LOGO will appear on the multifunction gauge in the graphic information area (3 and 4, Figure 52). Operating Controls DX225LC-3 2-24…

• Page 115
  IDLE» until temperature gauge registers in the white zone again. When the white zone is reached, allow the engine to idle for an additional three — five minutes before stopping the engine. If not allowed to idle, heat surge may develop Operating Controls DX225LC-3 2-25…
• Page 116
  By using a combination of the mode selector buttons, information for filters and oils can also be displayed. The display can also be set for the desired language. Refer to the “User Menu” on page 2-43 for the language selection and information display sequences. Operating Controls DX225LC-3 2-26…
• Page 117
  Communication Error Warning If a communication error is generated between EPOS controller and display monitor, this symbol will be displayed. When this symbol is displayed, contact a DOOSAN distributor. NOTE: When starter switch is turned to «I» (ON) position during a state of communication error…
• Page 118
  6. Digital Clock A digital clock, shows the current time. The displayed contents are as follows. Display Description HH:mm Hour Minute Refer to the “User Menu” on page 2-43 for time setting. FG018262 Figure 62 Operating Controls DX225LC-3 2-28…
• Page 119
  This symbol indicates when the engine starter switch is turned «ON», and should go «OFF» after the engine starts. If it does not turn «OFF», stop engine immediately and determine the cause of the problem. HAOA610L Figure 65 Operating Controls DX225LC-3 2-29…
• Page 120
  Allowing the engine to idle will dissipate heat. Check the coolant level, look for a loose fan belt, inspect for debris around radiator, etc. When the temperature reaches the normal range, the engine speed will automatically recover. Operating Controls DX225LC-3 2-30…
• Page 121
  This symbol indicates when the pilot filter clogged. If this symbol is displayed, immediately stop operation and replace the pilot filter. After the pilot filter has been serviced, restart machine operation to remove warning symbol. FG000055 Figure 71 DX225LC-3 Operating Controls 2-31…
• Page 122
  Figure 74 11. Water In Fuel Warning Symbol This symbol indicates when the water is full in the fuel prefilter. When this symbol appears, drain water from fuel prefilter as soon as possible. FG013744 Figure 75 Operating Controls DX225LC-3 2-32…
• Page 123
  If the equipment is moved or switched off while manual (forced) regeneration, the regeneration will need to be restarted. NOTE: If the machine is moved or switched off during regenerating, the regeneration process will need to be restarted. Operating Controls DX225LC-3 2-33…
• Page 124
  Active Regeneration — The symbol is green color. NOTE: Run machine at «LOW IDLE» and do not stop engine until regeneration cycle is completed. See “Engine Exhaust Emission Control System” on page 3-23, for more information. Operating Controls DX225LC-3 2-34…
• Page 125
  If warning light appears, stop the machine and repair the cause of the problem. FG018711 Figure 81 IMPORTANT If necessary depending on the type of problem, contact your DOOSAN distributor for repairs. NOTE: For explanation of warnings see “Warning Pop-up Window” on page 2-40. Operating Controls DX225LC-3…
• Page 126
  (4) seconds after all the control levers are in the «NEUTRAL» position. This system is designed to reduce fuel consumption and noise. When the auto idle selector button is pushed to «ON» position, an indicator light above it turns «ON». Operating Controls DX225LC-3 2-36…
• Page 127
  If a pop-up window appears, pressing the button will remove the pop-up. Entertainment Button Used to select entertainment window for video and music (MP3). 10. Menu 1 Selector Button Press this button to change from menu 2 to menu 1. Operating Controls DX225LC-3 2-37…
• Page 128
  Scroll through selection bar by turning the jog switch and select the mode by pressing the jog switch. Changing the starter switch from the «O» to «I» position will automatically reset the work mode to FG018373 «Excavation Mode». Figure 86 Operating Controls DX225LC-3 2-38…
• Page 129
  See “Switch Operation Indication” on page 2-71. 12. Jog Switch See “1. Jog Switch” on page 2-21. FG018103 Figure 88 13. Camera Mode Selector/ESC Button See “5. Camera Mode Selector/Escape (ESC) Button” on page 2-22. FG018107 Figure 89 Operating Controls DX225LC-3 2-39…
• Page 130
  Do not read message while traveling or operating machine. Go to Warning Display Move the selection window to the warning display by rotating the jog switch counterclockwise. Speed 40 (km/h) FG018714 Figure 91 Operating Controls DX225LC-3 2-40…
• Page 131
  Warning 000-0000-0000 Low E/G Oil Pressure Check E/G Oil Pressure. Speed 40 (km/h) FG018519 Figure 93 Delete Warning Pop-up Press escape or jog switch to delete the warning pop-up window. Speed 40 (km/h) FG018714 Figure 94 Operating Controls DX225LC-3 2-41…
• Page 132
  Diesel Particulate Filter (DPF) Start forced regeneration. Regeneration Status Active Regeneration Inhibited DPF active regeneration inhibited status. Auto Regeneration Auto regeneration status. Forceful Regeneration Forceful regeneration status. Stop engine and service the emission control system Engine Stop immediately. Operating Controls DX225LC-3 2-42…

• Page 133: User Menu

  GP Configuration Vehicle Vehicle State Configuration Entertainment Configuration Press the ESC button to return to the previous screen. WARNING FG018479 Figure 96 AVOID DEATH OR SERIOUS INJURY Do not use vehicle state menu when traveling or operating. Operating Controls DX225LC-3 2-43…

• Page 134
  FG018484 Figure 100 Turn the jog switch to locate it at NO. Then, click on the jog switch to allow the pop-up window to disappear without resetting the operation hour. Operating Controls DX225LC-3 2-44…
• Page 135
  Minimum Available Change Value By Basic Setup Value Setup Value Step Fuel filter Air cleaner 2,000 1,000 Engine oil filter Return filter 1,000 Pilot filter Engine oil Hydraulic oil 2,000 1,000 Coolant water 2,000 1,000 4,500 Operating Controls DX225LC-3 2-45…
• Page 136
  Pilot Filter The use time is exceeded! WARNING AVOID DEATH OR SERIOUS INJURY Do not use vehicle state menu when traveling or FG018517 operating. Figure 106 Operating Controls DX225LC-3 2-46…
• Page 137
  Attachment Select  Attachment Setting  Camera Setting  Jog Shuttle for Dial Vehicle Configuration Press the ESC button to return to the previous screen. Attachment Select Attachment Setting Camera Setting Jog Shuttle for Dial FG018489 Figure 110 Operating Controls DX225LC-3 2-47…
• Page 138
  Jog Shuttle for Dial If the system is set up as the owner’s password locked, Access the attachment setting list screen by FG018493 using owner’s password input screen. Figure 114 Operating Controls DX225LC-3 2-48…
• Page 139
  User Setting Max Flow relevant items. The cursor movement order goes like this: Attachment Use  Toggle  Max E/G Limit  Max Pressure  Max Flow  Min Flow  User FG019412 Setting Max Flow Figure 118 Operating Controls DX225LC-3 2-49…
• Page 140
  The max flow (pump) is the pump’s max. flow rate discharged when using attachments. It needs not to be set up by the user, and it is automatically determined according to the max. engine limit setup value. Operating Controls DX225LC-3 2-50…
• Page 141
  The camera setting screen is designed to set up Vehicle Configuration various cameras «ON/OFF» and normal/mirror. Attachment Select From the vehicle configuration, select camera setting Attachment Setting to access the camera setting list screen. Camera Setting Jog Shuttle for Dial FG018499 Figure 121 Operating Controls DX225LC-3 2-51…
• Page 142
  Attachment Select dial. Attachment Setting From the vehicle configuration, select the jog shuttle Camera Setting for dial to access it. Jog Shuttle for Dial FG018502 Figure 125 Operating Controls DX225LC-3 2-52…
• Page 143
  Turn the jog switch and move the cursor to see a reversed display on the desired menu. Then, click on the jog switch to select the menu. Vehicle Configuration Vehicle State Entertainment Configuration FG018506 Figure 129 Operating Controls DX225LC-3 2-53…
• Page 144
  AVOID DEATH OR SERIOUS INJURY FG018508 Listening to entertainment clips, such as video, music, Figure 132 etc., can cause an accident, resulting in death or serious injury. Do not play entertainment files when operating the machine. Operating Controls DX225LC-3 2-54…
• Page 145
  Hard Disk MOVIE operate the jog switch clockwise/counterclockwise to select and play a video. ..(3) Video(1).avi If there is a video file that played last, it will automatically be replayed. Video(2).avi Video(3).avi Video(4).avi FG018511 Figure 136 Operating Controls DX225LC-3 2-55…
• Page 146
  If no operation continues for more than 5 seconds, the video will automatically be converted into the whole screen. On the whole screen, click on the jog switch or the ESC button to remove whole screen. FG018214 Figure 139 Operating Controls DX225LC-3 2-56…
• Page 147
  Replay the Next File Title Locate the cursor at the replay the next file symbol and click on the jog switch to replay the next file. FG020120 Figure 143 Operating Controls DX225LC-3 2-57…
• Page 148
  With the video brightness setup window being created, operate switch clockwise/ counterclockwise to set brightness. After completing the setup, click on the jog switch to return to the previous screen. FG020122 Figure 146 Title FG020123 Figure 147 Operating Controls DX225LC-3 2-58…
• Page 149
  MP3 file. ..(0) If there is an MP3 file played last, the file will Music(1) .mp3 automatically be played. Music(2) .mp3 Music(3) .mp3 Music(4) .mp3 FG018560 Figure 151 Operating Controls DX225LC-3 2-59…
• Page 150
  MP3 playing. Figure 153 Replay the Previous File Singer — Title Locate the cursor at the replay the previous file symbol, and click on the jog switch to replay the Title previous file. Next FG020126 Figure 154 Operating Controls DX225LC-3 2-60…
• Page 151
  Title Next FG020129 Figure 157 Select a file and replay the MP3. Hard Disk MP3 ..(0) Music(1) .mp3 Music(2) .mp3 Music(3) .mp3 Music(4) .mp3 FG018560 Figure 158 Operating Controls DX225LC-3 2-61…
• Page 152
  Password Setting If the password setting function is used, the password Brightness Setting must be correctly input to operate the vehicle Default Screen Setting normally. Default Power Mode Setting Time Setting FG022138 Figure 162 Operating Controls DX225LC-3 2-62…
• Page 153
  Press the ESC button to return to the previous screen. Select the lock (applied) or unlock (not applied) in the password setting to enable or disable the password setting function accordingly. Operating Controls DX225LC-3 2-63…
• Page 154
  IMPORTANT Be careful not to forget your password. If you have forgotten your password, contact a DOOSAN distributor. In the case of owner password setting, setting procedure is same with the user password setting. The owner password setting will determine the password lock and unlock in the attachment setting.
• Page 155
  Turn the jog switch to adjust the brightness of 0 — 100% at an interval of 10%. The camera screen brightness at the vehicle release time is set as 60%. Press the ESC button to return to the previous screen. FG018244 Figure 172 Operating Controls DX225LC-3 2-65…
• Page 156
  The selected style screen is displayed as the normal display screen. Default Screen Setting The screen when manufactured is set as #1 style. #1 Style #2 Style FG018536 Figure 174 <1 Style> <2 Style> FG018537 Figure 175 Operating Controls DX225LC-3 2-66…
• Page 157
  Time Setting If the setup is completed, click on the jog switch to store the setup details. Press the ESC button to return to the previous TIME : 06 screen. DATE 2010 / 09 FG018538 Figure 179 Operating Controls DX225LC-3 2-67…
• Page 158
  On the GP configuration screen, when cursor is GP Configuration placed on the unit setting, click the jog switch to Default Screen Setting access the unit setting. Default Power Mode Setting Time Setting Service Phone Number Setting Unit Setting FG022146 Figure 183 Operating Controls DX225LC-3 2-68…
• Page 159
  On the GP configuration screen, when cursor is GP Configuration placed on the notification setting, click on the jog Time Setting switch to access the notification setting. Service Phone Number Setting Unit Setting Language Setting Notification Setting FG018542 Figure 187 Operating Controls DX225LC-3 2-69…
• Page 160
  Depending on the entertainment use setting details, the use of video and MP3 is limited. Entertainment Use Setting The setup when manufactured is set as not limited. Prohibition on Engine Running Prohibition on Working or Travel No Prohibition FG018547 Figure 190 Operating Controls DX225LC-3 2-70…
• Page 161
  It displays the operation state on the screen. Operation Indication Examples Power Plus Mode Selection FG018136 Figure 191 Power Mode Selection FG018137 Figure 192 Standard Mode Selection FG018138 Figure 193 Operating Controls DX225LC-3 2-71…
• Page 162
  Economy Mode Selection FG018139 Figure 194 Auto Idle Selection FG018140 Figure 195 Power Boost Selection FG018141 Figure 196 Breaker Selection FG018142 Figure 197 Operating Controls DX225LC-3 2-72…
• Page 163
  Shear Selection (Optional) FG018144 Figure 198 Quick Coupler Operation Selection (Optional) FG018143 Figure 199 10. Ram Rock Operation Selection (Wheel Machine Only) FG018264 Figure 200 11. High Beam Light Selection (Wheel Machine Only) FG018265 Figure 201 Operating Controls DX225LC-3 2-73…

• Page 164: Heater And Air Conditioner Control Panel

  FG019865 Figure 202 The heater and air conditioner are combined into one unit in the rear cover behind the operator’s seat. The operator can control cabin temperature using the control panel installed in the switch panel. Operating Controls DX225LC-3 2-74…

• Page 165
  When the system is in «AUTO» mode, specifications can be manually changed by pushing another button. FG000088 If a function is manually changed, the word «AUTO» does Figure 204 not appear in the LCD display, but the unchanged functions will remain in «AUTO» mode. Operating Controls DX225LC-3 2-75…
• Page 166
  Temperature Unit Selector Button This button gives the choice to select either °C or °F. FG000094 Figure 207 Mode Selector Button This button is used to select which combination air outlets will be used. MODE FG000096 Figure 208 Operating Controls DX225LC-3 2-76…
• Page 167
  Used to direct airflow to lower portion of operator’s cabin and feet. This mode is mainly used for heating. FG018288 Figure 211 Used to direct airflow to the front window and to operator’s feet. FG018289 Figure 212 Operating Controls DX225LC-3 2-77…
• Page 168
  Figure 215 Air Conditioner Button This button is used to turn the air conditioner «ON» or «OFF». When this function is activated, an «A/C» is displayed in the upper left corner of the LCD. FG000105 Figure 216 Operating Controls DX225LC-3 2-78…
• Page 169
  The blower button must be on «Three Bars». If operating the air conditioner or heater for a long time, operate the air inlet selector button and, when smoking, vent the air to the outside to prevent irritation to eyes. Operating Controls DX225LC-3 2-79…

• Page 170: Stereo

  FM Selection USB Loading Port USB Selection Sound Mode Selector Display Mode Control CD Player (Optional) TUNE VOLUME AM/FM SOUND TRACK ST RDS REG TA TP PTY AF DIR INT RPT RDM EQ Figure 220 FG017017 Operating Controls DX225LC-3 2-80…

• Page 171: Miscellaneous Electrical Devices

  If the circuit breaker is cut off, check all related circuits. This means something is wrong in the electrical circuit and it needs to be repaired. After maintenance, press the red button for normal operation of FG018291 circuit breaker. Figure 223 Operating Controls DX225LC-3 2-81…

• Page 172
  WARNING AVOID DEATH OR SERIOUS INJURY Always replace fuses with the same type and capacity fuse that was removed. Improper fuses can cause electrical damage and result in a fire, death or serious injury. Operating Controls DX225LC-3 2-82…

• Page 173: Seat Adjustment

  Adjust height of seat by moving adjustment lever (2, Figure 226) up or down. Seat height can be adjusted by referring to the weight indication window (A, Figure 226) on the right. • Green: Standard weight • Red: Underweight or overweight Operating Controls DX225LC-3 2-83…

• Page 174
  Always check the condition of seat belt and belt bracket before fastening it. Do not use seat belt with twists in it or with damaged or with missing hardware. Replace belt or bracket if damaged or worn. Operating Controls DX225LC-3 2-84…
• Page 175
  160 mm (6.3 in) forward or backward travel distance. Holding lever (1, Figure 231), raise it up, set the seat to desired position. Release lever to lock seat in selected position. FG018573 Figure 231 Operating Controls DX225LC-3 2-85…
• Page 176
  (safety) thermostat that operates between 32° — 41°C (90° — 106°F). At 41°C (106°F) the secondary (safety) thermostat stops heating the seat. If the seat is heating up to a higher than normal temperature, have seat serviced immediately. Operating Controls DX225LC-3 2-86…

• Page 177: Ceiling Cover

  Lower bucket or work tool to ground. Move safety lever (Figure 234) to «LOCK» position. Pull down cover with handle (Figure 235) so lock (1, Figure 235) can be locked into bracket in ceiling frame. FG015834 Figure 235 Operating Controls DX225LC-3 2-87…

• Page 178: Front Windows

  NOTE: The front window is spring loaded to help ease opening it. To fastening rear lock pin, hold handle and fasten rear lock pin. Operating Controls DX225LC-3 2-88…

• Page 179
  Secure window with left and right levers (3, Figure 240) with push button (4, Figure 240). IMPORTANT Keep hands dry when handling a window. Never drop window or let it come into contact with other parts of machine. FG015840 Figure 240 Operating Controls DX225LC-3 2-89…

• Page 180: Door Side Latch

  Keep door closed and locked when machine is not in use. FG015841 Figure 241 To release door from side of cabin, push latch lever (2, Figure 242) down. The latch lever is to the left of operator’s seat. FG021421 Figure 242 Operating Controls DX225LC-3 2-90…

• Page 181: Cabin Storage Compartments

  Figure 244 SUNGLASS CASE The sunglass storage case (1, Figure 245) is on the center top of the rear wall of the operator cabin. Keep this case lid closed before and after use. FG018579 Figure 245 Operating Controls DX225LC-3 2-91…

• Page 182: Sun Visor

  Do not allow visor to roll backup without holding it. Not holding it can result in damage to visor and retract mechanism. CAUTION AVOID INJURY Keep your head away from the retracting area of visor. FG015862 Figure 248 Operating Controls DX225LC-3 2-92…

• Page 183: Hanger

  Grip handle firmly and use sharp point to break glass. • Be careful also not to slip on broken pieces of glass on ground. FG015808 Figure 251 WARNING AVOID DEATH OR SERIOUS INJURY Protect your eyes when breaking the glass. Operating Controls DX225LC-3 2-93…

• Page 184: Miscellaneous Access Covers And Doors

  Open cover and slide prop rod (1, Figure 254) in slot (2) until it locks in notch at end of slot to support cover. To close cover, move end of prop rod out of notch so it can slide in slot. FG020684 Figure 254 Operating Controls DX225LC-3 2-94…

• Page 185: Air Gun And Compressor (Optional)

  Point the air gun towards the object to be cleaned. Pull the air gun handle to eject compressed air. WARNING FG018273 AVOID DEATH OR SERIOUS INJURY Figure 256 Do not point air gun at other persons or at yourself. FG015670 Figure 257 Operating Controls DX225LC-3 2-95…

• Page 186
  Do not allow people or animals inhale compressed air. Keep away and do not touch the air compressor while the air compressor operating switch is at «II» position (operating). Motor or fan could start suddenly and result in death or serious injury. Operating Controls DX225LC-3 2-96…
• Page 187
  Push the bottom of the air hose into the quick coupler (3, Figure 261) until a ‘clicking’ sound is heard. CAUTION AVOID INJURY Take care not to squeeze your finger in the coupler gap. FG018586 Figure 260 FG020061 Figure 261 Operating Controls DX225LC-3 2-97…
• Page 188
  Operating Controls DX225LC-3 2-98…

• Page 189: Operation

  Operation TO OPERATE A NEW EXCAVATOR All DOOSAN excavators are inspected before leaving the factory. However, it is required that operator follow these steps during the initial break-in period. Failure to follow these steps can result in damage to the equipment or reduced performance.

• Page 190: Starting And Stopping Engine

  • Check for problems in doors, handrails, guardrails, steps and loose bolts. • Clean and check cabin glass, rearview mirrors, rear view camera and lights. • Clean and check monitor, switches and gauges in the cabin. Operation DX225LC-3…

• Page 191
  «LOW» mark, add it. For detail method, see “10 Hour / Daily Service” on page 4-24. Grease boom, arm and front attachment pins. Check engine oil level. Check level of hydraulic oil tank. Check fuel level. Operation DX225LC-3…
• Page 192
  • Fuel gauge • Hydraulic oil temperature gauge FG018147 Figure 2 • Engine rpm (0 rpm) digital readout NOTE: If all the indicator lights do not come «ON» when the key is first turned, there is a problem. Operation DX225LC-3…
• Page 193
  Wait about five minutes and repeat above steps. FG018149 After engine has started, release key. Key will return to «I» Figure 5 (ON) position (Figure 5). Follow procedures in “Hydraulic System Warm-up” on page 3-12. Operation DX225LC-3…
• Page 194
  If not allowed to idle, heat surge may develop which will damage the engine. Allowing the engine to idle will dissipate heat. Check the coolant level, look for a loose fan belt, inspect for debris around radiator, etc. Operation DX225LC-3…
• Page 195
  Sound horn. Turn starter switch to «I» (ON) position (Figure 9). When preheat cycle is completed, the preheat indicator light (1, Figure 10) will turn «OFF». FG018147 Figure 9 FG018370 Figure 10 Operation DX225LC-3…
• Page 196
  After the engine starts, check all operating indicators to make sure that all engine systems (oil pressure, coolant, etc.) are in the normal operating range. If any problems are noticed, stop engine. Follow «Hydraulic System Warm-up» procedures in this section. (See page 3-12) Operation DX225LC-3…
• Page 197
  ) button to do the setting. Pressing the left ( ) or right ( ) button for longer than 2 seconds, fast setting is enabled. No pressing of buttons for 5 seconds will enter and save the time and date setting automatically. Operation DX225LC-3…
• Page 198
  F 07 Fuel pump line broken or short-circuited F 08 Fan motor line broken, short-circuited, overloaded, or blocked F 09 Ignition plug line broken or short-circuited F 10 Overheated F 11 Circulation pump line broken or short-circuited Operation DX225LC-3 3-10…
• Page 199
  (-) terminal of the booster batteries (3), and then BLACK make ground connection to the upper frame (5) of the machine to be started with the other end of black (-) cable ARO0440L (2, Figure 15). Figure 15 Operation DX225LC-3 3-11…
• Page 200
  80°C (120° — 175°F). Make sure to follow the procedures listed here for hydraulic fluid warm-up. Run engine for approximately five (5) minutes set at the middle of the speed range, without a load. FG018151 Figure 16 Operation DX225LC-3 3-12…
• Page 201
  Run engine at «LOW IDLE» (no load) for five (5) minutes (Figure 19). FG018148 Figure 19 Run engine for approximately five (5) minutes set at the middle of the speed range, without a load (Figure 20). FG018151 Figure 20 Operation DX225LC-3 3-13…
• Page 202
  Check for clearance and fully raise the front attachment. Slowly swing clockwise three (3) revolutions. Slowly swing counterclockwise three (3) revolutions. Travel forward and reverse at low speed for two (2) revolutions of the drive sprocket. FG018154 Figure 23 Operation DX225LC-3 3-14…
• Page 203
  Set engine speed control dial to «LOW IDLE» (Figure 26). Allow engine to idle for three — five (3 — 5) minutes. FG018148 Figure 26 Stop engine by turning key to «O» (OFF) position (Figure 27). Remove key from starter switch. FG018156 Figure 27 Operation DX225LC-3 3-15…

• Page 204: Safety Lever

  «UNLOCK» and the starter key is Figure 28 turned «ON», moving the work levers (joysticks) can result in movement of the work equipment. The charged accumulators in the system will provide pilot pressure for control valve spool movement. Operation DX225LC-3 3-16…

• Page 205: Travel

  Figure 29 higher speed range would be used. When a slope is encountered, the speed drops and the travel circuit hydraulic pressure rises, causing the control circuit to shift to the higher torque, lower speed range. Operation DX225LC-3 3-17…

• Page 206
  «X» is the sprocket end of the track. «X» FG018388 Figure 32 Stopping travel (Figure 33) — Returning travel levers to «NEUTRAL» position will automatically apply brakes and stop excavator. NOTE: «X» is the sprocket end of the track. «X» FG018389 Figure 33 Operation DX225LC-3 3-18…
• Page 207
  When traveling on rough ground, travel at a slow speed [1.0 — 1.5 km/h (0.62 — 0.93 MPH)]. Reduce engine speed, to avoid shock loading the equipment. Be careful that an excessive force is not added to equipment by climbing on rocks. FG018390 Figure 36 Operation DX225LC-3 3-19…
• Page 208
  Even though engine stops on a slope, do not operate swing control. hydraulic accumulators can cause the unit to swing. FG018393 NOTE: Do not open or close operator’s door on a slope. Figure 39 Make sure door is latched. Operation DX225LC-3 3-20…
• Page 209
  EX1300534 dry ground. Do not operate until proper Figure 41 inspection maintenance have been completed. Refer to the Shop Manual or contact your DOOSAN distributor. Straight Travel Pedal (Optional) WARNING AVOID DEATH OR SERIOUS INJURY When moving travel controls forward, tracked excavator will move in the direction of the idlers.
• Page 210
  (1, Figure 43) locking device. FG018582 Figure 43 Locking is completed when the top end of the prop (1) is positioned into pedal hole. Location for «UNLOCKING» (Figure 44). Location for «LOCKING» (Figure 44). FG018583 Figure 44 Operation DX225LC-3 3-22…

• Page 211: Operating Instructions

  If you have any questions about the operation or maintenance of your emission control system, contact your DOOSAN distributor. WARNING AVOID DEATH OR SERIOUS INJURY Exhaust gas temperature and exhaust system components are very hot during regeneration.

• Page 212
  Exhaust gas temperature and exhaust system components are very hot during regeneration. This can cause a fire or burn hazard which can result in death or serious injury or property damage. Keep flammable material and explosive gases away from exhaust system during regeneration. Operation DX225LC-3 3-24…
• Page 213
  If manual (forced) regeneration is necessary after the inhibited regeneration switch is turned «ON», press inhibited regeneration switch again to turn «OFF» the inhibit symbol. Press switch to manual (forced) regeneration position FG018400 activate system. Figure 49 Operation DX225LC-3 3-25…
• Page 214
  • Soot quantity in DPF is 120% or less: Manual (Forced) regeneration. • Soot quantity in DPF is 120% or more: regeneration is impossible, service the emission control system. Contact your DOOSAN distributor for more information. Operation DX225LC-3 3-26…
• Page 215
  50%. If this occurs, service the emission control system. Contact your DOOSAN distributor for more information. Active regeneration can occur anytime the engine is running, while operating the machine or when the machine is parked.
• Page 216
  Set up machine in the following manner: Operate machine until engine coolant and oil temperatures are above 40°C (104°F). Move engine speed to «LOW IDLE». Put transmission lever in «NEUTRAL» and engage parking brake (Wheel excavator only). Move safety lever to «LOCK» position. Operation DX225LC-3 3-28…
• Page 217
  During regeneration, high temperature warning light will be «ON». When regeneration stops, regeneration and high temperature warning lights will turn «OFF». NOTE: Operator can stop manual (forced) regeneration by raising safety lever to «UNLOCK» position. ENTER FG021740 Figure 54 Operation DX225LC-3 3-29…
• Page 218
  The frequency of ash cleaning depends upon the operating conditions, environment, and engine oil used. The cleaning is recommended to be done after every 4,500 hours of operation. Contact your DOOSAN distributor for DPF cleaning. FG018403 Figure 55 DPF Ash Cleaning Equipment Operation…
• Page 219
  Replace the DPF gasket when reassembling the DPF. Otherwise, an exhaust leak can result. Observe specified tightening torque of the exhaust system fasteners. Leakage in the exhaust system can result in failure to meet emission control regulations. Operation DX225LC-3 3-31…
• Page 220
  Maximize production with full Power. • Fast work. Power Mode • Work in a short period of time. • General work. Standard Mode • Optimize speed and fuel consumption. • Light work. Economy Mode • Minimize fuel consumption. • Reduce noise. Operation DX225LC-3 3-32…
• Page 221
  «OFF». WARNING AVOID DEATH OR SERIOUS INJURY Turn «OFF» auto idle function when performing work in close operating areas, i.e., working in a narrow area and loading/unloading on or off a trailer. Operation DX225LC-3 3-33…
• Page 222
  The power boost is activated when button is pressed on top of right-hand work lever (joystick). NOTE: Power boost mode does not affect forward and reverse travel. NOTE: Do not use this switch for more than seven (7) seconds. FG028599 Figure 61 Right-hand Work Lever (Joystick) Operation DX225LC-3 3-34…
• Page 223
  Bucket dump NOTE: Even after stopping the engine, the front can be lowered to the ground by the operating work lever (joystick) by moving safety lever to FG018406 «UNLOCK» position and turning starter switch Figure 65 «ON». Operation DX225LC-3 3-35…
• Page 224
  The selector valve is located in the rear of the cabin. Rotate spool to the ISO position or to BHL position. A control pattern symbol shows on the display screen. <BHL Pattern> <ISO Pattern> SELECTOR SELECTOR VALVE VALVE FG018374 Figure 67 Operation DX225LC-3 3-36…
• Page 225
  «UNLOCK» position and turning starter switch «ON». Figure 69 NOTE: When operating arm, stop momentarily. When the arm is operated, the weight of the arm can cause it to move faster than the amount of oil being supplied. FG000120 Figure 70 Operation DX225LC-3 3-37…
• Page 226
  NEVER activate the Floating mode function and using the work tool joystick control. It could result in unexpected machine motion and serious injury or death. To avoid the possibility of death or serious injury, follow the established procedures. Operation DX225LC-3 3-38…
• Page 227
  NOTE: When the Intelligent Floating Boom selector FG018591 switch is in «O» (NORMAL MODE) position, the Figure 75 Intelligent Floating Boom will not operate. Operation DX225LC-3 3-39…
• Page 228
  • Move the steering levers/foot pedals slowly. Abrupt FG021707 lever motion will cause the machine to jerk. Figure 78 Operation DX225LC-3 3-40…
• Page 229
  To lower upper boom, press on «BOTTOM» (2, Figure 80) of pedal. To raise upper boom, press on «TOP» (1, Figure 80) of pedal. Upper boom «UP» Upper boom «DOWN» FG021708 Figure 79 FG021709 Figure 80 Operation DX225LC-3 3-41…

• Page 230: Operating Precautions

  See Figure 81. FG018409 Figure 81 Check strength of supported structures before working on them to avoid collapse of the structure caused by the weight of the excavator. If insufficient, reinforce it. See Figure 82. FG018410 Figure 82 Operation DX225LC-3 3-42…

• Page 231
  • Move the steering levers/foot pedals slowly. Abrupt lever motion will cause the machine to jerk. Operation DX225LC-3 3-43…
• Page 232
  Call before you dig. See Figure 88. FG018414 Figure 88 10. If the excavation is in an underground location or in a building, make sure there is adequate overhead clearance and there is adequate ventilation. See Figure 89. FG018419 Figure 89 Operation DX225LC-3 3-44…
• Page 233
  See Figure 91 and Figure 92. FG018417 Figure 91 FG018418 Figure 92 13. Do not use the bucket as a hammer or ramming device. This can cause damage to the front attachment. See Figure 93. FG018416 Figure 93 Operation DX225LC-3 3-45…
• Page 234
  17. To protect undercarriage of the machine when traveling on rough ground or on rocks, set the idler (1, Figure 97) facing in travel direction. The idler and track spring are spring cushioned to absorb direct impacts. FG018423 Figure 97 Operation DX225LC-3 3-46…
• Page 235
  15 minutes every 2 hours to allow the lubricating oil inside the track rollers to cool down. See Figure 99. FG018452 Figure 99 Operation DX225LC-3 3-47…
• Page 236
  Make sure that all optional equipment has been authorized and installed properly. FG018425 Figure 100 Operation DX225LC-3 3-48…
• Page 237
  Then pull in the arm as in normal digging operations and put the travel levers in the FORWARD position to pull the machine out. FG018429 Figure 104 Operation DX225LC-3 3-49…

• Page 238: Parking Excavator

  Figure 107 If you move the operation lever unintentionally, it can cause accidental movement of the work group on attachment. Before leaving operator’s seat, move safety lever to «LOCK» position. Stop engine. Unlock Lock FG018293 Figure 108 Operation DX225LC-3 3-50…

• Page 239: Towing Procedure

  Only use shackle hook on track frame to haul objects that weigh less than 5 metric tons (5.51 U.S. Tons). Never use shackle hook to haul objects over 5 metric tons (5.51 U.S. Tons). Towing Wire FG018375 Figure 109 Operation DX225LC-3 3-51…

• Page 240: Attachments

  Never insert your fingers into the pinholes when aligning the holes. Stop the machine on a firm and flat surface and do the work. When performing joint work, appoint a lead and follow that person’s instructions and signals. Operation DX225LC-3 3-52…

• Page 241
  When replacing the bucket, replace the dust seal if it has been damaged. If a damaged seal is used without being replaced, sand and dirt may enter the pin portion and cause abnormal wear of the pin. Operation DX225LC-3 3-53…
• Page 242
  When replacing the bucket, replace the dust seal if it has been damaged. If a damaged seal is used without being replaced, sand and dirt may enter the pin portion and cause abnormal wear of the pin. Operation DX225LC-3 3-54…

• Page 243: Hydraulic Attachments (Optional)

  (OPTIONAL) Breaker Operation IMPORTANT If a hydraulic breaker and hydraulic piping is installed without DOOSAN’s written authorization, it can damage the excavator and this will not be covered under the excavator warranty. Selection of Hydraulic Breaker If a hydraulic breaker is installed, consider equipment’s stability and suitability for such modification.

• Page 244
  Do not use the breaker if the hydraulic hoses vibrate excessively. See Figure 118. Check the breaker’s hydraulic accumulator (1) for damage and repair as required. If excavator is operated under this condition, structural and hydraulic components can be damaged. FG018437 Figure 118 Operation DX225LC-3 3-56…
• Page 245
  90° to the tracks can result in tipping over the machine Figure 121 or reduction in service life. 10. Do not curl the breaker tool tip into the arm or boom when traveling or parking the excavator. See Figure 122. FG018439 Figure 122 Operation DX225LC-3 3-57…
• Page 246
  Pressure button (3, Figure 125) on the top of right-hand work lever (joystick) to activate hydraulic breaker. Release button (3, Figure 125) on the top of right-hand work lever (joystick) to deactivate hydraulic breaker. FG018376 Figure 123 Work Mode EX1300478 Figure 124 FG028599 Figure 125 Operation DX225LC-3 3-58…
• Page 247
  100% 500 Hours 100 Hours Work These service intervals only apply, when genuine DOOSAN hydraulic oil and filter are used. If any other brands are used, the guaranteed change interval must be reduced in half. 105 116 FILTER (First Replacement)
• Page 248
  NOTE: Selection of a hydraulic shear must be done with extra care. Use of a hydraulic shear not recommended by DOOSAN could result in structural damage to the machine. Consult your DOOSAN distributor for hydraulic shear information. Be sure that no one is near the work tool to prevent injury. Keep the work tool under control at all times to prevent injury.
• Page 249
  «CLOSE» the work tool. EX1300479 Figure 128 FG027217 Figure 129 IMPORTANT Cutting train or crane rails, engine crankshafts, welded fabrications, bearing, shafts, and other hard metals will increase the wear rate on the cutting edges and the shear. Operation DX225LC-3 3-61…
• Page 250
  Use a pry bar or cutting torch to free the cutting arm or dislodge the obstruction. Always check the cutting edge alignment after the jaws are working properly. Operation DX225LC-3 3-62…
• Page 251
  AVOID DEATH OR SERIOUS INJURY Before using any attachment in a work application, be sure to check its functional control. Make sure that desired movement or action is being activated by the control, e.g. opening/ closing, clockwise/counterclockwise, crowd/dump, etc. Operation DX225LC-3 3-63…
• Page 252
  Attaching Quick Coupler to Excavator Place the excavator and quick coupler on the level ground. Retract the bucket cylinder. Align the quick coupler between the hinges of the work tool. FG019086 Figure 131 Operation DX225LC-3 3-64…
• Page 253
  Retract the bucket cylinder to attach the hitch completely. Check that hitch is engaged and the work tool is properly locked before operating. <LOCK> NOTE: Insert safety pin (Figure 135) after completion. FG019089 Figure 134 Push Type Pull Type FG022357 Figure 135 Operation DX225LC-3 3-65…
• Page 254
  Retract the bucket cylinder to move the quick coupler toward the machine. FG019093 Figure 137 Set quick coupler switch to «O» (LOCK) position. Lower and move the arm away from the work tool and toward the machine. <LOCK> FG019094 Figure 138 Operation DX225LC-3 3-66…

• Page 255: Lifting Objects

  The most stable position is over the corner of the machine. For best stability, carry a load as close to the ground and machine as possible. HAAD3830 Lift capacity decreases as the distance from the machine swing Figure 139 centerline is increased. Operation DX225LC-3 3-67…

• Page 256
  Provide tag lines to prevent load from swinging back and forth. This can cause a change in the lift radius could exceed the load chart rating or cause a tip over. Travel speed will depend on work site conditions. Avoid sudden starts and stops. Operation DX225LC-3 3-68…

• Page 257: Operation Under Abnormal Conditions

  Keep engine in good mechanical condition for easy starting and good performance during adverse weather. Use engine oil with proper specifications for expected temperatures. Refer “Table Recommended Lubricants” on page 4-19, in this manual or Shop Manual for details. Operation DX225LC-3 3-69…

• Page 258
  Make frequent inspections and services of fan and radiator. Check coolant level in radiator. Check grilles and radiator fins for accumulation of dirt, debris and insects which could block cooling passages. Operation DX225LC-3 3-70…
• Page 259
  Protect all unfinished, exposed surfaces with a film of preservative lubricating oil. Protect cables and terminals with ignition insulation compound. Apply paint or suitable rust preventive to damaged surfaces to protect them from rust and corrosion. Operation DX225LC-3 3-71…
• Page 260
  Keep all exposed surfaces coated with preservative lubricating oil. Pay particular attention to damaged or unpainted surfaces. Cover all paint cracks and chip marks as soon as possible to prevent corrosive effects. Operation DX225LC-3 3-72…
• Page 261
  There is a potential hazard that could cause a battery explosion or fire. • Before charging or starting engine with a different power source, thaw battery electrolyte and check for any leakage of electrolyte before starting. Operation DX225LC-3 3-73…
• Page 262
  Turn key to «O» (OFF) position and remove from starter switch. Allow hydraulic oil to cool. Tip breather cap up (1, Figure 141) on the top of the hydraulic tank until internal pressure in the hydraulic tank has been completely relieved. FG020062 Figure 141 Operation DX225LC-3 3-74…
• Page 263
  Connect hose (2, Figure 143) to the original position on the hydraulic tank and install the oil tank cover (1, Figure 143). After completion of the manual boom lowering, make necessary repairs before you operate the machine again. NOTE: For additional information, contact your DOOSAN distributor. Operation DX225LC-3 3-75…
• Page 264
  0.23 ± 0.03 kg•m (2.25 ± 0.25 Nm, 1.66 ± 0.18 ft lb). After completion of the manual boom lowering, make necessary repairs before you operate the machine again. NOTE: For additional information, contact your DOOSAN dealer. Operation DX225LC-3 3-76…

• Page 265: Long Term Storage

  NOTE: When sealing with tape, be sure to extend tape approximately inch (25 mm) beyond opening to insure a good seal. Operation DX225LC-3 3-77…

• Page 266
  If there is water in the oil, change all the oil. • Change all filter. • Inspect for signs of nests. (i.e. birds, rodents, etc.) • When starting the engine after long-term storage, follow the «Hydraulic Oil Warm-up» procedures listed in this manual. Operation DX225LC-3 3-78…

• Page 267: Inspection, Maintenance And Adjustment

  Check operational hour meter reading every day to see if necessary maintenance is scheduled to be performed. DOOSAN Genuine Replacement Parts Use DOOSAN genuine parts specified in Parts Book as replacement parts. DOOSAN Genuine Lubricants For lubrication of the machine, use DOOSAN genuine lubricants.

• Page 268
  Never mix different brands or grades of oil. Locking Inspection Covers Lock inspection cover securely into position with lock bar. If inspection or maintenance is performed with inspection cover not locked in position, it could fall and cause injury. Inspection, Maintenance and Adjustment DX225LC-3…
• Page 269
  For details of checks when operating engine, see “Safety Precautions” on page 4-4 and pay careful attention to safety. – Are inspection and maintenance items working properly? – Is there any leakage of fuel or oil when engine speed is raised? Inspection, Maintenance and Adjustment DX225LC-3…
• Page 270
  O-rings, etc. are tight and are not showing signs of leakage, wear or damage. If inspection or test procedure requires that engine be running, make sure to keep all unauthorized personnel away from the machine. Inspection, Maintenance and Adjustment DX225LC-3…

• Page 271: Machine Setup Position For Maintenance

  Unlock Lock EX1300566 Figure 2 Allow engine to run at «LOW IDLE» for a minimum of five minutes to allow engine to cool, If this is not done, heat surge can occur. FG018148 Figure 3 Inspection, Maintenance and Adjustment DX225LC-3…

• Page 272
  OPERATE» Warning Tag on cabin door or work lever. WARNING AVOID DEATH OR SERIOUS INJURY engine must running while performing maintenance, use extreme care. Always have one person in cabin at all times. Never leave cabin with FG018380 engine running. Figure 5 Inspection, Maintenance and Adjustment DX225LC-3…

• Page 273: Maintenance Handling Access

  Do not use hand grip (A, Figure 6) of cabin door as a support when entering, leaving or climbing the machine. It is not strong enough to be used as a support. It should only be used for closing the door. FG020102 Figure 8 FG020103 Figure 9 Inspection, Maintenance and Adjustment DX225LC-3…

• Page 274: Handling Oil, Fuel, Coolant

  Having too much or too little oil can cause operational problems. • If oil in work equipment is not clear, there may be water or air getting into circuit. In such cases, contact your DOOSAN distributor. • When changing oil, always replace related filters at same time. Fuel…

• Page 275
  Shorten the time period between Oil drain intervals (more frequent oil drain intervals) • Increase overall operating costs. Failures that result from use of improper fuels are not DOOSAN factory defects. Therefore the cost of repairs would not be covered by a DOOSAN warranty.
• Page 276
  DOOSAN engines. DOOSAN engine oils that meet API CJ-4 are required for use in the applications listed below. DOOSAN engine oils meeting the API CJ-4 and ACEA E9 oil categories have been developed with limited sulfated ash, phosphorus, and sulfur.
• Page 277
  1 year or 2,000 hours. Therefore, it is recommended to use authorized genuine DOOSAN antifreeze solution. When using DOOSAN coolant, there is no need to use a corrosion resistor. For details, see “Engine Cooling System” on page 4-92.
• Page 278
  If any metal particles are found, contact your DOOSAN distributor. • Do not open packages of spare filters until just before they are to be used. • Always use DOOSAN genuine filters. Inspection, Maintenance and Adjustment DX225LC-3 4-12…

• Page 279: Electrical System Maintenance

  Service relating to the electrical system is: checking fan belt tension, checking damage or wear to the fan belt, and checking battery electrolyte level. • Never install any electric components other than those specified by DOOSAN. • External electromagnetic interference cause malfunction of the control system controller.

• Page 280: Recommend Fuel, Coolant, And Lubricant

  • Commercially available lubricant may be good for the machine, but it can also cause harm. DOOSAN does not recommend any commercially available lubricant additive. • When starting the engine in temperatures below 0°C (32°F), be sure to use recommended multigrade oil, even if…

• Page 281
  Gear Oil (Swing Device, Travel Device) Air Cleaner Filter Engine Oil Fuel Filter Engine Oil Filter Air Conditioner Filter Hydraulic Oil Drain Water Hydraulic Oil Filter Fuel Cap Filter Hydraulic Oil Tank Breather Diesel Particulate Filter Inspection, Maintenance and Adjustment DX225LC-3 4-15…
• Page 282
  Lubrication and Service Chart 250h 500h 1000h 2000h 4500h EX1300872 Figure 11 Inspection, Maintenance and Adjustment DX225LC-3 4-16…
• Page 283
  F100: Every 10 Hours For First 100 Hours. W10: Every 10 Hours If Operating In Water. EG: Ethylene Glycol — DOOSAN Genuine Antifreeze Solution (Drain and replace using this interval.) See “Engine Cooling System” on page 4-92, for further explanation.

• Page 284: Fluid Capacities

  (37 U.S. gal.) 200 liters Hydraulic Oil Full (53 U.S. gal.) 240 liters System (63.4 U.S. gal.) 4 liters Travel Reduction Gear (Each) (1.05 U.S. gal.) 5 liters Swing Reduction Gear (1.3 U.S. gal.) Inspection, Maintenance and Adjustment DX225LC-3 4-18…

• Page 285: Table Of Recommended Lubricants

  TABLE OF RECOMMENDED LUBRICANTS IMPORTANT It is highly recommend to use DOOSAN Genuine Products or products which meet the following specifications. Using other products can damage the equipment. NOTE: Refer to the “Lubrication and Service Chart” on page 4-16 for locations.

• Page 286
  (Engine oil) — Engine oil must meet ACEA-E9 or API-CJ-4. Hydraulic oil change interval is 2,000 hours, only when DOOSAN Genuine Oil is used. If other brands of oil is used, guaranteed change interval is 1,000 hours. Note that mixing ratio is for reference purpose only, and is not an absolute standard.

• Page 287: Maintenance Intervals

  Perform All Daily and 50 Hour Service Checks 4-40 Grease Boom and Arm Joint Pins 4-40 Check Engine Fan and Alternator Belts Tension 4-42 Check Engine Fan and Alternator Belts Wear 4-43 Change Breaker Filter (Optional) 4-44 Inspection, Maintenance and Adjustment DX225LC-3 4-21…

• Page 288: Service Item

  Check All Rubber Antivibration Shock Mounts 4-72 Perform and Record Results of Cycle Time Tests 4-72 Inspect Machine to Check for Cracked or Broken Welds or other Structural Damage 4-72 Check, Adjust Valve Clearance** 4-72 Inspection, Maintenance and Adjustment DX225LC-3 4-22…

• Page 289
  Clean Diesel Particulate Filter (DPF) 4-74 12,000 Hour / 6 Year Service Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 (CEN)) 4-75 ** These checks need to be completed by an authorized DOOSAN distributor. Inspection, Maintenance and Adjustment DX225LC-3 4-23…

• Page 290: 10 Hour / Daily Service

  If oil is above «HIGH» mark on dipstick, oil must be drained to return oil to proper level. Add oil through engine oil fill cap (2, Figure 12), if the oil level is below the «LOW» mark. FG000616 Figure 13 Inspection, Maintenance and Adjustment DX225LC-3 4-24…

• Page 291: Check Level Of Hydraulic Oil Tank

  Remove upper cover of the hydraulic tank and add oil. IMPORTANT FG020183 Do not fill above «H» mark on sight gauge. Overfilling Figure 17 can result in damage to equipment and oil leaking from hydraulic tank because of expansion. Inspection, Maintenance and Adjustment DX225LC-3 4-25…

• Page 292: Check For Leaks In Hydraulic System

  Check Fuel Level WARNING AVOID DEATH OR SERIOUS INJURY Use extreme safety precautions while refueling to prevent explosions or fire. Immediately clean up any spilled fuel. FG020068 Figure 19 Inspection, Maintenance and Adjustment DX225LC-3 4-26…

• Page 293: Check For Leaks In Fuel System

  Check for Leaks in Fuel System Perform an inspection of engine compartment to verify that fuel system is not leaking. If any is noted, determine source of leak and repair. Inspection, Maintenance and Adjustment DX225LC-3 4-27…

• Page 294: Check Water Separator & Pre Fuel Filter (Fuel Prefilter) And Drain Water As Required

  (2, Figure 23) on bottom of bowl (1). NOTE: Dispose of drained fluids in compliance with all applicable environmental regulations. Close drain valve. open close FG000438 Figure 23 Inspection, Maintenance and Adjustment DX225LC-3 4-28…

• Page 295: Check Oil Level Of Swing Reduction Device

  If the oil level exceeds the «H» mark on the dipstick, release the drain plug (3, Figure 26). Drain the excessive oil into an approved container. NOTE: Dispose of drained fluids in compliance with all applicable environmental laws and regulations. FG020081 Figure 26 Inspection, Maintenance and Adjustment DX225LC-3 4-29…

• Page 296: Clean Dust Net In Front Of Oil Cooler And Intercooler

  Observe the level of coolant in the coolant recovery tank. The normal cold engine fluid level must be between «FULL» and «LOW» marks on tank. If the coolant is below the «LOW» mark, add genuine part of 50% concentration coolant to the tank. Inspection, Maintenance and Adjustment DX225LC-3 4-30…

• Page 297: Check Level Of Window Washer Liquid

  Do not allow the replaceable bucket teeth to wear down to the point that bucket adapter is exposed. See Figure 30. NOTE: These instructions are only for DOOSAN OEM buckets. If you are using other manufacturers’ buckets, refer to their specific instructions.

• Page 298: Check Air Intake System And Emission Control System Components

  Check the exhaust pipe and dosing unit for regeneration, and V-clamp dosing unit gasket for damage and tightness. If damaged, wrinkled, or loose, replace or retighten or contact your nearest DOOSAN distributor. IMPORTANT FG019443 FG019443 Severe engine damage will result from running with Figure 33 unfiltered air.

• Page 299: Inspect Mirrors For Damage And Adjust And Clean As Required

  «LOCK» position. Contact your DOOSAN distributor immediately if the controls do not deactivate. DO NOT MODIFY THE SYSTEM. Inspection and Maintenance of the Pilot Cutoff Switch Check for and keep bystanders away from the work area.

• Page 300: Check Operation Of All Exterior Lights, Horn And Control Console Indicator And Display Monitor

  Turn «ON» and inspect all exterior work lights. Replace any monitors, burned-out bulbs or cracked or broken housings or lenses. Start Engine, Check Starting Ability, and Observe Exhaust Color at Start-up and at Normal Operating Temperature. Listen for Any Abnormal Sounds. Inspection, Maintenance and Adjustment DX225LC-3 4-34…

• Page 301: Check Operation Of All Controls And Linkages

  With the engine at rated speed, operate all the controls. Follow cold weather hydraulic system warm-up procedures. Note any slow operations or unusual movements. Determine the cause and repair before operating. Inspection, Maintenance and Adjustment DX225LC-3 4-35…

• Page 302: 50 Hour / Weekly Service

  Reference Description Description Number Number Arm Link Joint Pin (1 Point) Bucket Link Joint Pin (1 Point) Link Joint Pin (2 Points) Bucket Cylinder Rod Pin (1 Point) Arm Bucket Joint Pin (1 Point) Inspection, Maintenance and Adjustment DX225LC-3 4-36…

• Page 303: Grease Swing Bearing

  Park machine on firm and level ground. Lower the front attachment to the ground and stop engine. There are two grease fittings for the swing bearing. Do not over lubricate. Purge old grease with new. Remove all purged grease. FG020069 Figure 38 Inspection, Maintenance and Adjustment DX225LC-3 4-37…

• Page 304: Grease Leveling Blade Pins (Optional)

  1.0 bar (14 psi) or above. Compressed air inside tank must be released first. Wear safety goggles to protect your eyes from water and/or flying objects from drain valve. Inspection, Maintenance and Adjustment DX225LC-3 4-38…

• Page 305: Check Engine Fan Belt For Cracks, Wear And Correct Tension (After First 50 Hours)

  Do a daily walk-around inspection of all components including the track assemblies. Look for missing, damaged or excessively worn parts. See “Track Tension” on page 4-100. Jack up each track and perform the two speed travel motor test. Inspection, Maintenance and Adjustment DX225LC-3 4-39…

• Page 306: 250 Hour / Monthly Service

  Boom Arm Joint Pin (2 Points) Boom Foot Pin (2 Points) Arm Cylinder Rod Pin (1 Point) Boom Cylinder Rod Pin (2 Points) Bucket Cylinder Head Pin (1 Point) Arm Cylinder Head Pin (1 Point) Inspection, Maintenance and Adjustment DX225LC-3 4-40…

• Page 307
  Boom foot pin (2 points) Boom cylinder rod pin (2 points) Arm cylinder head pin (1 point) FG019635 Figure 44 Boom arm joint pin (2 points) FG019636 Figure 45 Arm cylinder rod pin (1 point) FG019637 Figure 46 Inspection, Maintenance and Adjustment DX225LC-3 4-41…

• Page 308: Check Engine Fan And Alternator Belts Tension

  Model Belt Tension (N) Depressible Distance (5 kgf) 800 ±50 N 2.4 mm 62 — 64 mm (82 ±5 kgf) DL06K 600 ±50 N Used 3.7 mm 58 — 60 mm (61 ±5 kgf) Inspection, Maintenance and Adjustment DX225LC-3 4-42…

• Page 309: Check Engine Fan And Alternator Belts Wear

  250 hours. If the tension falls below the required minimum, the belt can slip damaging the belts and pulley grooves. NOTE: When operating in abrasive conditions, check belt tension every 100 hours. Inspection, Maintenance and Adjustment DX225LC-3 4-43…

• Page 310: Change Breaker Filter (Optional)

  Tightening torque: 27 kg m (265 Nm, 195 ft lb) • Install drain plug in bottom of filter housing. 10. After changing breaker filter, vent air from pump and check level of hydraulic oil tank. Inspection, Maintenance and Adjustment DX225LC-3 4-44…

• Page 311: Replace Hydraulic Oil Return Filter (After First 250 Hours)

  End Attachments for Signs of Wear Check Fluid Levels in Batteries See “Inspection of Battery Electrolyte Level” on page 4-89 for further information. Inspect for Any Loose or Missing Nuts and Bolts Inspect Fuel System Hose Clamps Inspection, Maintenance and Adjustment DX225LC-3 4-45…

• Page 312: 500 Hour / 3 Month Service

  FG020078 Figure 52 If water or other contaminations are found, remove lower access cover so the gear teeth can be thoroughly cleaned and lubricated. Install access covers after lubricating gear teeth. FG018327 Figure 53 Inspection, Maintenance and Adjustment DX225LC-3 4-46…

• Page 313: Change Engine Oil And Filter

  Start engine. Run engine for five minutes at «LOW IDLE» and check engine oil pressure light. Stop engine. Look for signs of leaks at filter. Recheck oil level after fifteen minutes. FG019582 Figure 56 Inspection, Maintenance and Adjustment DX225LC-3 4-47…

• Page 314: Clean Air-Conditioning Outer Filter

  FG018456 Figure 57 Remove filter (Figure 58) and inspect for any damage. Use compressed air to clean filter. If filter is still dirty, then replace filter. Reassemble in reverse order. FG018330 Figure 58 Inspection, Maintenance and Adjustment DX225LC-3 4-48…

• Page 315: Check And Clean Air-Conditioning Inner Filter

  If the filter is very dirty, use a mild soap or detergent and water to clean it. IMPORTANT If water was used to clean filter, be certain that filter is completely dry before installing. Inspection, Maintenance and Adjustment DX225LC-3 4-49…

• Page 316: Clean Radiator, Oil Cooler, Intercooler, Fuel Cooler And Air Conditioner Condenser Cores

  IMPORTANT To prevent damage to the cores, apply compressed air from an appropriate distance. Damaged cores can cause leakage or overheating. In dusty conditions, check the cores daily. FG019433 Figure 63 Inspection, Maintenance and Adjustment DX225LC-3 4-50…

• Page 317: Clean Outer Filter Of Air Cleaner

  Install evacuator valve with lips parallel to the Figure 65 cover. Remove access cover (2, Figure 66) by loosening the latches (3). Remove outer filter (4, Figure 66) from the housing. Do not remove inner filter (5). FG018333 Figure 66 Inspection, Maintenance and Adjustment DX225LC-3 4-51…

• Page 318
  (3) is properly seated in air cleaner body. If it is seated, install again. NOTE: If after cleaning the outer filter, the air cleaner clogged indicator remains «ON», replace the outer and inner filters. Do not clean inner filter. Inspection, Maintenance and Adjustment DX225LC-3 4-52…

• Page 319: Change Of Water Separator & Pre Fuel Filter (Fuel Prefilter)

  When packing contacts surface, tighten the cartridge about 3/4 of a turn more. Coat surface of seal (3, Figure 72) with fuel, and tighten the bowl with tool. FG000428 Figure 72 Inspection, Maintenance and Adjustment DX225LC-3 4-53…

• Page 320: Change Main Fuel Filter

  Tighten plug (1, Figure 75) in fuel prefilter head. Continue to pump primer pump until a strong resistance is felt. Start engine and look for signs of leaks. Repeat procedure if necessary. Inspection, Maintenance and Adjustment DX225LC-3 4-54…

• Page 321: Clean Air Compressor Filter (Optional)

  AVOID DEATH OR SERIOUS INJURY Do not clean or replace the filter while the air compressor is running. Wear safety goggles to protect your eyes from flying dust when cleaning or replacing the filter. FG015679 Figure 77 Inspection, Maintenance and Adjustment DX225LC-3 4-55…

• Page 322: Check Oil Level In Travel Reduction Device (One On Each Side Of Unit)

  Change Swing Reduction Device Oil (Drain and Refill After First 500 Hours) NOTE: Change swing reduction device oil after first 500 hours on a new machine and every 1,000 hours thereafter (See page 4-61). Inspection, Maintenance and Adjustment DX225LC-3 4-56…

• Page 323: 1,000 Hour / 6 Month Service

  NOTE: When the machine is operated under dusty work sites, the air breather filter needs to be FG013207 cleaned or replaced on a regular basis even Figure 81 before the expected replacement date. Inspection, Maintenance and Adjustment DX225LC-3 4-57…

• Page 324: Replace Hydraulic Oil Return Filter

  Install service cover plate. Run engine for ten minutes at «LOW IDLE» to purge air from circuit. Check level in hydraulic oil tank (See page 4-25). Add oil if FG021266 necessary. Figure 84 Inspection, Maintenance and Adjustment DX225LC-3 4-58…

• Page 325: Change Pilot Filter

  (1, Figure 87). NOTE: Used filter should always be disposed of according to local laws and regulations. FG021270 After changing pilot filter, vent air from pump and check Figure 87 level of hydraulic oil tank. Inspection, Maintenance and Adjustment DX225LC-3 4-59…

• Page 326: Change Oil In Travel Reduction Device (One On Each Side Of Unit)

  (3) until fluid level is at port (1). Install level plug (1) and fill plug (3). NOTE: See “Fluid Capacities” on page 4-18. for capacity. Repeat this procedure on the other travel reduction device. Inspection, Maintenance and Adjustment DX225LC-3 4-60…

• Page 327: Change Swing Reduction Device Oil

  Dispose of drained fluids in compliance with all applicable environmental regulations. After draining oil, tighten the drain plug. FG020081 Figure 90 Remove breather/fill cap (2, Figure 89) and add oil to «H» mark on dipstick (1). FG000419 Figure 91 Inspection, Maintenance and Adjustment DX225LC-3 4-61…

• Page 328: Change Air-Conditioning Outer Filter

  Remove filter by pulling knob outward while pressing the upperpart and lower part of the filter handle which is inside of the left rear part of the cabin. FG018331 Replace with new one. Figure 94 Reassemble filter in reverse order. Inspection, Maintenance and Adjustment DX225LC-3 4-62…

• Page 329: Check Air Conditioner Refrigerant

  Appearance of the Sight Glass Solutions Almost clear. Normal All bubbles disappear. Charge or withdraw the system with the correct High No bubbles are seen. amount of HFC-134a refrigerant. A flow of bubbles is visible. Inspection, Maintenance and Adjustment DX225LC-3 4-63…

• Page 330: Change Fuel Cap Filter

  Remove screws and filter assembly from fuel cap (Figure 97). FG015684 Figure 97 After disassembly, carefully lay it as shown in Figure 98. FG015685 Figure 98 After disassembly (Figure 98), remove rubber piece as shown on (Figure 99). FG015686 Figure 99 Inspection, Maintenance and Adjustment DX225LC-3 4-64…

• Page 331: Check And Adjust Engine

  (Figure 100) with a new one. FG015687 Figure 100 After installing new filter, assemble fill cap in reverse order. FG015688 Figure 101 Check and Adjust Engine** Contact your DOOSAN distributor for checking and adjusting the following items: • Engine Compression Pressure. • Injection Pressure. •…

• Page 332: 2,000 Hour / Yearly Service

  Remove inner element (5, Figure 104), then install a new inner element. Insert the inner element properly so it does not move. Push the new outer element (5, Figure 104) in straight to the air cleaner body. FG000426 Figure 104 Inspection, Maintenance and Adjustment DX225LC-3 4-66…

• Page 333
  When cover (3) is installed, check that clearance Figure 106 between the air cleaner body and cover (3) is not too large. If it is too large, remove cover and install again. FG018334 Figure 107 Inspection, Maintenance and Adjustment DX225LC-3 4-67…

• Page 334: Change Radiator Coolant

  Slowly open the radiator cap to allow any pressure to escape. Place a container under the radiator and open the drain valve (1, Figure 109). NOTE: Dispose of drained fluids in compliance with all applicable environmental laws and regulations. FG019581 Figure 109 Inspection, Maintenance and Adjustment DX225LC-3 4-68…

• Page 335: Changeair Compressor Filter (Optional)

  Do not try to clean or replace the filter while the air compressor is running. Wear safety goggles to protect your eyes from flying dust when cleaning or replacing the filter. FG019407 Figure 112 Inspection, Maintenance and Adjustment DX225LC-3 4-69…

• Page 336: Hydraulic Oil Exchange And Suction Strainer Cleaning

  Hydraulic oil change interval is 2,000 hours only when DOOSAN Genuine Oil is used. If another brand of oil is used, a change interval of 1,000 hours is necessary. NOTE:…

• Page 337
  When the hydraulic breaker is being used, because of higher heat generated this unit, replacement intervals recommended under “Hydraulic Oil and Filter Service Intervals” on page 3-59. 13. Check level of hydraulic oil tank. (See page 4-25) ARO1720L Figure 117 Inspection, Maintenance and Adjustment DX225LC-3 4-71…

• Page 338: Check Alternator And Starter

  Perform and Record Results of Cycle Time Tests Inspect Machine to Check for Cracked or Broken Welds or other Structural Damage Check, Adjust Valve Clearance** Check Head Bolt Torques **These checks need to be completed by an authorized DOOSAN distributor. Inspection, Maintenance and Adjustment DX225LC-3 4-72…

• Page 339: Hour / Biennial Service

  Pump suction hose 2 years or 4,000 hours System Pump discharge hoses Pump side branch hoses Swing motor hoses Travel motor hoses Work Boom cylinder line hoses Device Arm cylinder line hoses Bucket cylinder line hoses Inspection, Maintenance and Adjustment DX225LC-3 4-73…

• Page 340
  IMPORTANT Regular ash cleaning is necessary to prevent engine performance and fuel efficiency from deteriorating. IMPORTANT When DPF cleaning is needed, contact DOOSAN distributor for more information. For details, See “DPF Cleaning (Removing Ash in DPF)” on page 3-30. Inspection, Maintenance and Adjustment…

• Page 341: 12,000 Hour / 6 Year Service

  Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 (CEN)) European regulations state that in-service life of any hydraulic hose may not exceed six years. DOOSAN recommends the following: • Hoses at the customer premises cannot be stored more than 2 years before being discarded or installed on a machine.

• Page 342: Air-Conditioning System

  Check Magnetic Clutch Check the magnetic clutch for dirt and interference. Push the «A/C» switch to energize and check magnetic clutch. Check Belt Tension NOTE: See “Check Engine Fan and Alternator Belts Tension” on page 4-42. Inspection, Maintenance and Adjustment DX225LC-3 4-76…

• Page 343: Bolt And Nut Inspection

  250 hours thereafter. If any are loose or are missing, tighten them or install new hardware. Always use a calibrated torque wrench. IMPORTANT Always clean fasteners before tightening. If counterweight is loose, contact a DOOSAN distributor for maintenance information. Bolt Torque…

• Page 344: Pump Side

  Tool: 30 mm ( • Torque: 46 kg•m (451 Nm, 333 ft lb) FG019437 Figure 120 Fan side • Tool: 30 mm ( • Torque: 46 kg•m (451 Nm, 333 ft lb) FG019438 Figure 121 Inspection, Maintenance and Adjustment DX225LC-3 4-78…

• Page 345: Radiator Mounting Bolt

  Tool: 24 mm ( • Torque: 27 kg•m (265 Nm, 195 ft lb) FG019440 Figure 124 Mounting bolt for pump. • Tool: 17 mm ( • Torque: 44 kg•m (431 Nm, 318 ft lb) FG001423 Figure 125 Inspection, Maintenance and Adjustment DX225LC-3 4-79…

• Page 346: Mounting Bolt For Control Valve 16 4 24 27 265

  • Torque: 11 kg•m (108 Nm, 80 ft lb) FG020082 Figure 128 10. Mounting bolt for battery. • Tool: 17 mm ( • Torque: 5 kg•m (49 Nm, 36 ft lb) FG018353 Figure 129 Inspection, Maintenance and Adjustment DX225LC-3 4-80…

• Page 347: 11. Joint Bolt With Cabin Mounting Rubber And Frame

  Torque: 55 kg•m (539 Nm, 398 ft lb) FG019043 Figure 132 Joint bolt with swing bearing and bottom frame. • Tool: 30 mm ( • Torque: 55 kg•m (539 Nm, 398 ft lb) FG001430 Figure 133 Inspection, Maintenance and Adjustment DX225LC-3 4-81…

• Page 348: 13. Mounting Bolt For Travel Device

  Torque: 55 kg•m (539 Nm, 398 ft lb) FG020729 Figure 136 15. Mounting bolt for lower track roller(s). • Tool: 24 mm ( • Torque: 27 kg•m (265 Nm, 195 ft lb) FG000461 Figure 137 Inspection, Maintenance and Adjustment DX225LC-3 4-82…

• Page 349: 16. Mounting Bolt For Track Guard

  Tool: 24 mm ( • Torque: 27 kg•m (265 Nm, 195 ft lb) FG018358 Figure 140 19. Breaker filter (Optional) • Tool: 30 mm ( • Torque: 27 kg•m (265 Nm, 195 ft lb) FG020087 Figure 141 Inspection, Maintenance and Adjustment DX225LC-3 4-83…

• Page 350: 20. Grease Valve For Track Adjuster

  • Tool: 17 mm ( • Torque: 6.5 kg•m (64 Nm, 47 ft lb) Bracket — Support • Tool: 19 mm ( FG019444 Figure 144 • Torque: 11 kg•m (108 Nm, 80 ft lb) Inspection, Maintenance and Adjustment DX225LC-3 4-84…

• Page 351: 23. Mounting Bolt For Air Compressor

  23. Mounting bolt for air compressor. • Tool: 19 mm ( • Torque: 11 kg•m (108 Nm, 80 ft lb) FG020056 Figure 145 Inspection, Maintenance and Adjustment DX225LC-3 4-85…

• Page 352: Bucket

  Stop engine and lock out the hydraulic controls before working on the bucket. NOTE: These instructions are only for DOOSAN OEM, buckets. If you are using other manufacturers buckets, refer to their specific instructions.

• Page 353
  O-ring groove on both bucket link (4, Figure 150) and boss have been cleaned. Realign arm or link with bucket pinhole and insert bucket pin (3, Figure 149). FG019074 Figure 150 Roll new O-ring (1, Figure 151) into O-ring groove. FG019075 Figure 151 Inspection, Maintenance and Adjustment DX225LC-3 4-87…

• Page 354: Electrical System

  ELECTRICAL SYSTEM NOTE: Never disassemble electrical or electronic parts. Consult a DOOSAN distributor before servicing. Battery WARNING AVOID DEATH OR SERIOUS INJURY Battery electrolyte contains sulfuric acid and can quickly burn the skin and eat holes in clothing. If you spill acid on yourself, immediately flush the area with water.

• Page 355
  When the charging indicator indicates a transparency state, replace the battery. The batteries should always be replaced in pairs. Using an old battery with a new one will shorten the life span of the new battery. Inspection, Maintenance and Adjustment DX225LC-3 4-89…
• Page 356
  Figure 155 WARNING AVOID DEATH OR SERIOUS INJURY Always replace fuses with the same type and capacity fuse that was removed. Otherwise, electrical damage or fire could result. Inspection, Maintenance and Adjustment DX225LC-3 4-90…
• Page 357
  Satellite Antenna (Optional) Air Conditioner, Heater Cabin Light (Optional) Micro Phone (Optional) Working Light Fuel Heater (Optional) Seat Warmer, Air Air Compressor (Optional) suspension EPOS, Pilot Buzzer Travel Speed changer Wiper motor, Fuel Pump (Optional) Inspection, Maintenance and Adjustment DX225LC-3 4-91…

• Page 358: Engine Cooling System

  Do not use more than 50% antifreeze in the mixture unless additional antifreeze protection is required. Never use more than 60% antifreeze under any condition. Inspection, Maintenance and Adjustment DX225LC-3 4-92…

• Page 359
  Types of Antifreeze Ethylene Glycol — DOOSAN Genuine Antifreeze Solution  (for all seasons) Ethylene glycol is a very hazardous material to human beings, animals and environment. Drain of coolant must be disposed of by an authorized waste material treatment service provider.
• Page 360
  Antifreeze Concentration Tables Ethylene Glycol — DOOSAN Genuine Antifreeze Solution (for all seasons) (2,000 Hour/1 Year) Ambient Temperature Cooling Water Antifreeze -20°C (-4°F) -25°C (-13°F) -30°C (-22°F) -40°C (-40°F) NOTE: The concentration shall be kept at 50% and in worst case at 30% minimum for the least corrosion resistance.
• Page 361
  Clutch (to Engine 43 N.m Pulley) M10 Bolt (4.4 kg.m, 32 ft lb) NOTE: If electrical wire is not properly connected, the cooling fan will run at maximum fan speed. Check fan speed after assembly. Inspection, Maintenance and Adjustment DX225LC-3 4-95…

• Page 362: Fuel Transfer Pump (Optional)

  Be careful not to overfill or spill fuel. Make sure direction of check valve is in line with flow direction of fuel. Any pump parts or components that become lost, damaged or inoperable must be immediately replaced. Inspection, Maintenance and Adjustment DX225LC-3 4-96…

• Page 363
  A thermal limiter, built into the motor, will automatically shut off power if motor is overheating to protect it from being damaged. Fuel Fuel Tank IN IN FG000161 Figure 160 Reference Reference Description Description Number Number Body Strainer Cap Check Valve Inlet Hose Strainer Inspection, Maintenance and Adjustment DX225LC-3 4-97…
• Page 364
  Install strainer cap (4, Figure 160) on inlet strainer (3, Figure 160) and return hose (5, Figure 160) to storage position. FG019405 Figure 161 Inspection, Maintenance and Adjustment DX225LC-3 4-98…

• Page 365: Handling Of Accumulator

  • DO NOT weld on accumulator, or try attaching anything to it. • When replacing an accumulator, contact a DOOSAN distributor or sales agency so the gas can be properly released. • Wear safety goggles and protective gloves when working on an accumulator.

• Page 366: Track Tension

  Track tension is checked by jacking up one side of the excavator. See Figure 163. Place blocking under frame while taking measurement. Turn the track backward 1 — 2 turns. EX1300534 Figure 163 Inspection, Maintenance and Adjustment DX225LC-3 4-100…

• Page 367
  If tightened to a lower torque than standard value, grease may leak. WARNING AVOID DEATH OR SERIOUS INJURY Do not loosen or remove grease fitting (1, Figure 165) until pressure is entirely bled off by loosening valve (3, Figure 165) slowly. Inspection, Maintenance and Adjustment DX225LC-3 4-101…

• Page 368: Venting And Priming Hydraulic System

  Run engine at «LOW IDLE». Extend and retract each cylinder to within 100 mm (4 in) of fully stroking it 4 — 5 times. Operate fully extend and retract each cylinder 3- 4 times. Repeat procedure until cylinders extend and retract smoothly. Inspection, Maintenance and Adjustment DX225LC-3 4-102…

• Page 369
  Move engine speed to «LOW IDLE» and check hydraulic oil level again. Add oil as necessary. Check for oil leaks and clean all fill and venting locations. Inspection, Maintenance and Adjustment DX225LC-3 4-103…

• Page 370: Maintenance In Special Conditions

  Verify the condition of the batteries. In extreme cold weather, remove batteries at night and store them in a warmer area. Remove mud buildup as soon as possible to prevent it from freezing to the undercarriage and causing damage. Inspection, Maintenance and Adjustment DX225LC-3 4-104…

• Page 371: Transportation

  Never remove counterweight or front attachment unless the upper structure is in-line with the lower structure. Never rotate the upper structure once the counterweight or FG018594 front attachment has been removed. Figure 1 Transportation DX225LC-3…

• Page 372
  (2, Figure 3). Stop lifting with assist crane as soon as lifting slings are taut. 13. Remove four bolts (2, Figure 3) and washers (3) from counterweight (1, Figure 3). NOTE: Heat bolts, if necessary, to free them. Transportation DX225LC-3…
• Page 373
  Torque bolts (2, Figure 4) to values shown in the following table. Model Bolt Torque FG020092 DX225LC-3 150 kg•m (1,085 ft lb) Figure 4 Remove lifting device and lifting eyes from counterweight lifting holes. (5, Figure 4) Make sure all electrical lines and other items are connected.
• Page 374
  The ramp angle must be less than a 15° angle. Ramps steeper than this can cause traction or stability problems when loading or unloading. FG018618 Figure 5 Set the travel speed selector switch to «O» (OFF) position. See Figure 6. FG016016 Figure 6 Transportation DX225LC-3…
• Page 375
  (heavy end) of the excavator is positioned on the ramp first. See Figure 9. FG018619 Figure 9 Extend bucket and arm cylinders to maximum length and then lower the boom slowly. FG018617 Figure 10 Transportation DX225LC-3…
• Page 376
  17. Refer to «Specification» section of this manual for overall machine height and width dimensions. Make sure to position the excavator as shown. If not transported in this position, the height measurements may be different. FG018620 Figure 14 Transportation DX225LC-3…
• Page 377
  FG020098 Figure 15 DX225LC-3 Transportation…

• Page 378: Lifting Machine

  Set the lifting angle (1, Figure 16) of the wire rope to 30° — 40°. After the machine comes off the ground, check the hook condition and the lifting posture, and then lift slowly. Transportation DX225LC-3…

• Page 379: Troubleshooting

  If the cause of the operating problem cannot be determined, contact your DOOSAN distributor. Never perform an adjustment or the disassembly of the hydraulic, electrical or electronic components without first contacting a DOOSAN distributor.

• Page 380: Engine

  Water or dirt in fuel system. Clean system and add new fuel. Air in fuel system. Purge air from system. Engine stop control failed. Contact your DOOSAN dealer. Engine stop relay failed. Replace relay. Blown fuse. Replace fuse. Engine starts, runs only at Engine oil viscosity incorrect.

• Page 381
  Refill. unevenly or surges. Plugged air intake system. Clean system and replace filter. Injection pump out of adjustment. Contact your DOOSAN dealer. Plugged fuel filter. Replace fuel filter. Water or dirt in fuel system. Clean system and add new fuel.
• Page 382
  Crankshaft. wear bearing Replace bearing and grind crankshaft. crankshaft progress, clearances increase. Uneven wear of crankshaft Grind or replace. Oil supply insufficient because of Clean oil passage. oil passage clogging. Stuck bearing. Replace bearing and grind. Troubleshooting DX225LC-3…
• Page 383
  Oil ring’s oil return hole clogged. Replace piston ring. Oil ring’s contact poor. Replace piston ring. Oil level lowered. Looseness of valve stem and Replace in set. guide. Wear of valve stem seal. Replace seal. Cylinder head gasket’s leak. Replace gasket. Troubleshooting DX225LC-3…

• Page 384: Turbocharger

  Leakage at discharge port on Check and correct. compressor side. Unusual sound or vibration. Rotor assembly coming in contact. Disassemble/repair or replace. Unbalanced rotation of rotor. Disassemble/repair or replace. Seized up. Disassemble/repair or replace. Each joint loosened. Check and correct. Troubleshooting DX225LC-3…

• Page 385: Cooling Fan

  Oil pump defective. Correct or replace. Oil pressure gauge defective. Correct or replace. Various bearings worn. Replace. Oil deteriorates quickly. Restriction in oil filter. Replace filter. Gases leaking. Replace piston rings and cylinder liner. Poor oil. Use suggested oil. Troubleshooting DX225LC-3…

• Page 386: Hydraulic System

  HYDRAULIC SYSTEM Problem Cause Correction None of the controls Hydraulic pump failed. Contact your DOOSAN dealer. function (loud noise from Low hydraulic oil level. Add hydraulic oil as required. pumps). Suction line plugged or damaged. Clean or replace as required.

• Page 387: Air Compressor (Optional)

  Mounting rubber pad is worn or Replace the mounting rubber pad. missing. Air pressure is lower than Drain valve is open. Close the drain valve. normal. Clogged air suction filter. Clean/replace suction air filter. Leak at joint. Check/tighten the joints. Troubleshooting DX225LC-3…

• Page 388: Swing System

  Travel speed is too low. Track tension too high or too low. Adjust tension. Damaged rollers or idlers. Repair or replace as required. Track frame damaged. Repair as required. Parking brake will not release. Repair parking brake. Troubleshooting DX225LC-3 6-10…

• Page 389: Specification

  Gradeability 35° (70% slope) Ground Pressure 6.53 psi 0.46 kg/cm Ground Clearance 480 mm 18.9 in Track Shoe Width 600 mm 23.6 in Upper Roller Qty. 2 per side Lower Roller Qty. 8 per side * Power Boost DX225LC-3 Specification…

• Page 390: Overall Dimensions

  (10′ 3″) (10′ 11″) (10′ 11″) 2,710 mm (8′ 10″) 1,400 mm (4′ 7″) 1,310 mm (4′ 4″) 2,390 mm (7′ 10″) 2,990 mm (9′ 10″) 600 mm (1′ 12″) 480 mm (1′ 7″) 2,975 mm (9′ 9″) Specification DX225LC-3…

• Page 391
  3,100 mm (10′ 2″) 3,080 mm (10′ 1″) 2,710 mm (8′ 10″) 1,400 mm (4′ 7″) 1,310 mm (4′ 4″) 2,390 mm (7′ 10″) 2,990 mm (9′ 10″) 600 mm (1′ 12″) 480 mm (1′ 7″) 2,975 mm (9′ 9″) Specification DX225LC-3…

• Page 392: Disassembled Parts, Dimension And Weight

  5,880 (19′ 3″) 6,060 (19′ 11″) 8,686 (28′ 6″) Length (B) 1,343 (4′ 5″) 1,410 (4′ 8″) 1,368 (4′ 6″) (ft-in) Width 628 (2′ 1″) 628 (2′ 1″) 628 (2′ 1″) 1,730 2,270 2,180 Weight 3,814 5,004 4,806 Specification DX225LC-3…

• Page 393
  7,203 (23′ 8″) Length (B) 868 (2′ 10″) 868 (2′ 10″) 902 (2′ 12″) 979 (3′ 3″) (ft-in) Width 344 (1′ 2″) 344 (1′ 2″) 344 (1′ 2″) 344 (1′ 2″) 1,000 1,210 1,370 Weight 2,205 1,940 2,668 3,020 Specification DX225LC-3…

• Page 394: Ground Pressure

  (ft-in) kg (Ib) mm (ft-in) kg (Ib) kg/cm (psi) 21,910 0.46 (6.54) (48,300) 22,195 0.40 (5.73) (48,930) Triple 5,700 2,900 0.92 4,300 (9,480) Grouser (18′ 8″) (9′ 6″) (1.20) 22,475 0.36 (5.12) (49,550) 22,760 0.32 (4.55) (50,175) Specification DX225LC-3…

• Page 395: Digging Force

  12,994 Tearout Force 116.5 87.3 55.3 Normal 10,197 11,880 8,902 5,639 (ISO) 22,481 26,190 19,626 12,432 106.1 123.6 94.7 58.6 Power Boost 10,819 12,604 9,657 5,976 (ISO) 23,852 27,786 21,289 13,174 Rotation Angle — Bucket 176.9 176.9 170.7 Specification DX225LC-3…

• Page 396: Working Range

  6,840 mm 6,700 mm 6,980 mm 10,845 mm Max. Loading Height (22′ 5″) (21′ 12″) (22′ 11″) (35′ 7″) 3,560 mm 3,580 mm 3,620 mm 4,960 mm Min. Swing Radius (11′ 8″) (11′ 9″) (11′ 10″) (16′ 3″) Specification DX225LC-3…

• Page 397
  5,980 mm (19′ 8″) 6,460 mm (21′ 2″) Max. Digging Height 10,910 mm (35′ 9″) 11,200 mm (36′ 9″) Max. Loading Height 8,010 mm (26′ 3″) 8,310 mm (27′ 3″) Min. Swing Radius 2,790 mm (9′ 2″) 2,625 mm (8′ 7″) Specification DX225LC-3…

• Page 398: Excavator Rated Lift Capacity Tables

  • Keep the arm end point directly over the load. Use tag lines on opposite sides of the load to help stabilize the load and prevent side loads caused by wind gusts. Specification DX225LC-3 7-10…

• Page 399
  Figure 9. IMPORTANT Select the Digging Mode switch on the Instrument Panel before using the excavator for lifting work. Engine and hydraulic oil should both be fully warmed up to operating temperature before operating. Specification DX225LC-3 7-11…
• Page 400
  The total weight of machine is 21,100 kg (46,500 lb). Included are the; boom 5.7 m (18′ 8″), arm 2.9 m (9′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-12…
• Page 401
  The total weight of machine is 22,800 kg (50,300 lb) Included are the; boom 5.7 m (18′ 8″), arm 2.9 m (9′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-13…
• Page 402
  The total weight of machine is 21,000 kg (46,300 lb). Included are the; boom 5.7 m (18′ 8″), arm 2.4 m (7′ 10″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-14…
• Page 403
  The total weight of machine is 21,300 kg (47,000 lb). Included are the; boom 5.7 m (18′ 8″), arm 3.5 m (11′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-15…
• Page 404
  The total weight of machine is 22,100 kg (48,700 lb). Included are the; lower boom 3.1 m (10′ 2″), upper boom 2.8 m (9′ 2″), arm 2.9 m (9′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-16…
• Page 405
  The total weight of machine is 23,700 kg (52,200 lb). Included are the; lower boom 3.1 m (10′ 2″), upper boom 2.8 m (9′ 2″), arm 2.9 m (9′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-17…
• Page 406
  The total weight of machine is 22,000 kg (48,500 lb). Included are the; lower boom 3.1 m (10′ 2″), upper boom 2.8 m (9′ 2″), arm 2.4 m (7′ 10″), 4,300 kg (9,480 lb) counterweight, without bucket all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-18…
• Page 407
  The total weight of machine is 21,700 kg (47,800 lb). Included are the; boom 5.7 m (18′ 8″), arm 2.9 m (9′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-19…
• Page 408
  The total weight of machine is 21,600 kg (47,600 lb). Included are the; boom 5.7 m (18′ 8″), arm 2.4 m (7′ 10″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-20…
• Page 409
  The total weight of machine is 21,800 kg (48,100 lb). Included are the; boom 5.7 m (18′ 8″), arm 3.5 m (11′ 6″), 4,300 kg (9,480 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. Specification DX225LC-3 7-21…
• Page 410
  * 6.57 4.00 4.97 2.91 * 7.90 * 7.90 * 9.42 * 9.42 * 7.75 6.35 * 5.99 4.12 * 4.79 2.99 -7.5 * 8.57 * 8.57 * 6.37 * 6.37 * 5.00 4.32 * 3.96 3.16 Specification DX225LC-3 7-22…
• Page 411
  1.30 13.27 3.83 2.25 3.09 1.81 2.57 1.50 2.41 1.41 12.62 -4.5 3.84 2.26 3.11 1.83 2.70 1.59 11.73 * 3.87 2.33 * 3.05 1.92 * 3.00 1.91 10.57 -7.5 * 2.99 2.50 * 2.99 2.50 9.00 DX225LC-3 Specification 7-23…
• Page 412
  13.25 * 14.21 8.63 10.71 6.29 * 17.68 * 17.68 * 21.21 * 21.21 * 16.65 13.69 * 12.87 8.90 * 10.27 6.48 * 18.14 * 18.14 * 13.52 * 13.52 * 10.58 9.36 * 8.30 6.86 Specification DX225LC-3 7-24…
• Page 413
  The total weight of machine is 23,500 kg (51,800 lb). Included are the; boom 8.5 m (27′ 11″), arm 6.2 m (20′ 4″), 5,300 kg (11,684 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. DX225LC-3 Specification 7-25…
• Page 414
  * 6.57 4.06 5.04 2.96 * 7.90 * 7.90 * 9.42 * 9.42 * 7.75 6.43 * 5.99 4.17 * 4.79 3.04 -7.5 * 8.57 * 8.57 * 6.37 * 6.37 * 5.00 4.38 * 3.96 3.20 Specification DX225LC-3 7-26…
• Page 415
  1.32 13.27 3.88 2.29 3.14 1.84 2.61 1.53 2.45 1.43 12.62 -4.5 3.89 2.30 3.16 1.86 2.74 1.62 11.73 * 3.87 2.37 * 3.05 1.95 * 3.00 1.94 10.57 -7.5 * 2.99 2.53 * 2.99 2.54 9.00 DX225LC-3 Specification 7-27…
• Page 416
  13.43 * 14.21 8.76 10.86 6.38 * 17.68 * 17.68 * 21.21 * 21.21 * 16.65 13.88 * 12.87 9.02 * 10.27 6.57 * 18.14 * 18.14 * 13.52 * 13.52 * 10.58 9.48 * 8.30 6.95 Specification DX225LC-3 7-28…
• Page 417
  The total weight of machine is 23,800 kg (52,500 lb). Included are the; boom 8.5 m (27′ 11″), arm 6.2 m (20′ 4″), 5,300 kg (11,684 lb) counterweight, without bucket, all operating fluids and a 75 kg (165 lb) operator. Lift capacities are in compliance with ISO 10567. DX225LC-3 Specification 7-29…

• Page 418: Approximate Weight Of Workload Materials

  (2,295 lb/yd 1,522 kg/m Dolomite, crushed (2,565 lb/yd 1,202 kg/m Earth, loamy, DRY, loose (2,025 lb/yd 1,522 kg/m Earth, DRY, packed (2,565 lb/yd 1,762 kg/m Earth, WET, muddy (2,970 lb/yd Gypsum, calcined, (heated, 961 kg/m powder) (1,620 lb/yd Specification DX225LC-3 7-30…

• Page 419
  929 kg/m Salt (1,566 lb/yd 529 kg/m Snow, light density (891 lb/yd 1,522 kg/m Sand, DRY, loose (2,565 lb/yd 1,922 kg/m Sand, WET, packed (3,240 lb/yd 1,362 kg/m Shale, broken (2,295 lb/yd 529 kg/m Sulfur, broken (891 lb/yd Specification DX225LC-3 7-31…
• Page 420
  Specification DX225LC-3 7-32…

• Page 421: Index

  Check Fuel Prefilter and Drain Water As Required 4-89 Electrolyte Level 4-28 4-89 Terminals Check Water Separator & Pre Fuel Filter (Fuel Battery Disconnection 4-28 Prefilter) and Drain Water as Required Battery Explosion Checks After Inspection and Maintenance Works 1-62 Battery Hazard Prevention Index DX225LC-3…

• Page 422
  Disposal of Hazardous Materials Do not Drop Things Inside Machine 2-90 Door Side Latch 1-10 DOOSAN Genuine Lubricants Fall Hazard 1-13 DOOSAN Genuine Replacement Parts Falling Object (Optional) 3-30 4-39 DPF Cleaning (Removing Ash in DPF) Fan Belt 1-65 4-12…
• Page 423
  Intelligent Floating Boom Control (Optional) 4-48, 4-62 Filter 3-38 Intelligent Floating Boom Mode 2-74 Location of Controls and Vents 1-11 ISO Control Pattern 2-79 Memory Function of Used Mode 4-63 Refrigerant 4-76 System 2-86 2-23 Heating Operator’s Seat Jack Assembly Index DX225LC-3…
• Page 424
  Heater and Air Conditioner Control Panel 2-23 Multimedia Button 2-13 Wiper Control 3-50 Parking Excavator 1-45 Parking Machine 4-45 3-27 Nuts and Bolts Passive Regeneration Password 2-25 Activated 1-19 Personal Protective Equipment (PPE) Obey State and Local Over-the-Road Regulations Index DX225LC-3…
• Page 425
  Gear and Pinion 4-103 Safety Decals With Text Motor 4-29, 4-56, 4-57, 4-61 Safety Decals Without Text (No-Text) Reduction Device 3-16 6-10 Safety Lever System 1-39 Safety Precautions Swinging or Traveling 2-12 2-71 Scan Button Switch Operation Indication Index DX225LC-3…
• Page 426
  Water In Fuel Warning Weight of Workload Materials 4-15 Symbols for «Lubrication and service chart» Welding Instructions 1-56 Welding Repairs 4-31 Window Washer Liquid Windows 4-19 Table of Recommended Lubricants 2-88 Front 1-14 Tie down (Optional) 2-89 Front Bottom Index DX225LC-3…
• Page 427
  3-35 1-67 Work Levers (Joysticks) (ISO Pattern) Working in Contaminated Environment 1-67, 3-49 Work Levers (Joysticks) (Standard Control Pattern) Working in Water 3-37 1-58 Working on Machine 3-33 Work Mode Working Range 2-22, 2-38 Work Mode Selector Button Index DX225LC-3…
• Page 428
  Index DX225LC-3…
• Page 430
  2905 Shawnee Industrial Way Suite 100 Suwanee, GA 30024…