Page 1 EXCAVATOR Operation & Maintenance Manual DX140R/DX140LCR Serial Number 5001 and Up K1049550HE September 2018...
Page 3 Operation & Maintenance Manual DX140R/DX140LCR EXCAVATOR Serial Number 5001 and Up DOOSAN and the DOOSAN logo are registered trademarks of DOOSAN Corporation in the United States and various other countries around the K1049550HE world. September 2018 © Doosan Infracore 2018...
Page 5: Table Of Contents
Table of Contents EC Declaration of Conformity ............0-1 Safety ..................1-1 To the Operator of a DOOSAN Excavator ......... 1-1 Safety Decals..................1-4 Visibility Information ................. 1-19 Summary of Safety Precautions for Lifting in Digging Mode.... 1-21 Unauthorized Modifications.............. 1-22 General Hazard Information.............
Page 6 Operation Under Unusual Conditions ..........3-43 Road Liners (Machine equipped with road liner) ......3-47 Operation ..................3-48 Inspection, Maintenance and Adjustment.......4-1 Preventive Maintenance ..............4-1 Preliminary Work Machine Setup for Maintenance......4-4 Table of Recommended Lubricants ........... 4-6 Table of Contents DX140R/DX140LCR...
Page 7 Maintenance in Special Conditions..........4-84 Transportation ................5-1 Loading and Unloading ..............5-1 Lifting Machine................... 5-6 Specification ................6-1 Standard Specification ............... 6-1 Overall Dimensions................6-2 Working Range .................. 6-4 Approximate Weight of Workload Materials........6-8 Index ...................7-1 Table of Contents DX140R/DX140LCR...
Page 8 Table of Contents DX140R/DX140LCR...
Page 9: Ec Declaration Of Conformity
EC DECLARATION OF CONFORMITY Doosan Benelux SA, Drève Richelle 167, 1410 Waterloo, (Belgium),  as authorized representative in the European Community of Doosan Infracore Co., Ltd. (Korea),  certifies that the construction equipment machinery. Type of Machine : HYDRAULIC CRAWLER EXCAVATOR Manufacturer : Doosan Infracore Co., Ltd., 489, Injung-ro, Dong-gu, Incheon, Korea...
Page 10 0-2 DX140R/DX140LCR...
Page 11: Safety
Safety TO THE OPERATOR OF A DOOSAN EXCAVATOR DANGER AVOID DEATH Unsafe use of the excavator could lead to serious injury or death. Operating procedures, maintenance and equipment practices or traveling or shipping methods that do not follow the safety guidelines on the following pages could cause serious, potentially fatal injuries or extensive damage to the machine or nearby property.
Page 12 In no event should you or others engage in prohibited uses or actions as described in this manual. DOOSAN delivers machines that comply with all applicable regulations and standards of the country to which it has been sent. If this machine has been purchased in another...
Page 13 In addition to safety signal words, the following signal words are used to indicate proper and effective use of machine. IMPORTANT This signal word identifies procedures which must be followed to avoid damage to machine. NOTE: The word "NOTE" identifies information for effective use. Safety DX140R/DX140LCR...
Page 14: 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 DX140R/DX140LCR...
Page 15 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 DX140R/DX140LCR...
Page 16 Information and Location for Safety Decals EX1402440 Figure 2 Safety DX140R/DX140LCR...
Page 17 Information and Location for Safety Decals (Continued) 7, 8 EX1402399 Figure 3 Safety DX140R/DX140LCR...
Page 18 • 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 DX140R/DX140LCR...
Page 19 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 DX140R/DX140LCR...
Page 20 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 DX140R/DX140LCR 1-10...
Page 21 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 DX140R/DX140LCR 1-11...
Page 22 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 DX140R/DX140LCR 1-12...
Page 23 • 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 DX140R/DX140LCR 1-13...
Page 24 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 DX140R/DX140LCR 1-14...
Page 25 UNSUPPORTED DOOR CAN FALL CAUSING DEATH OR SERIOUS INJURY • To open door: Hold door firmly. Lift door slowly until locking device engages. • To close door: EX1301198 Hold door firmly. Press locking device to disengage. Lower door slowly. Safety DX140R/DX140LCR 1-15...
Page 26 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 hydraulic oil which is suitable for machine. 950205-06281 EX1505097 EX1505098 950205-06282 EX1505099 Safety DX140R/DX140LCR 1-16...
Page 27 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 DX140R/DX140LCR 1-17...
Page 28 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 DX140R/DX140LCR 1-18...
Page 29: Visibility Information
Adjust the visual aids for the best visibility criteria for all areas around the machine. Safety DX140R/DX140LCR 1-19...
Page 30 Inspect equipment and immediately report if there are problems with the visual aids. If machine cannot be fixed immediately, DO NOT use the machine. Contact your local DOOSAN distributor as soon as possible and ask for repairs. Guidelines •...
Page 31: Summary Of Safety Precautions For Lifting In Digging Mode
48.3 km/h (30 MPH). Be prepared for any wind gust when working with loads that have a large surface area. Always engage the "Digging Mode" control on the Instrument Panel before using the excavator for lifting work. Safety DX140R/DX140LCR 1-21...
Page 32: Unauthorized Modifications
UNAUTHORIZED MODIFICATIONS Any modification made without authorization or written approval from DOOSAN can create a safety hazard, for which the machine owner will be held responsible. For safety's sake, replace all OEM parts with the correct authorized or genuine DOOSAN part. For example, not taking...
Page 33 When leaving the machine, completely lower the work equipment to the ground, set safety lock lever to "LOCK" position and stop engine. Use the key to lock all the equipment. Always remove key and take it with you. Safety DX140R/DX140LCR 1-23...
Page 34 Whole body: The weighted root mean square acceleration to which the whole body is subjected, is less than 0.5 m/s Measurements are obtained on a representative machine, using measuring procedures as described in the following standard: ISO 2631/1. ISO 5349, and SAE J1166. Safety DX140R/DX140LCR 1-24...
Page 35 Recommendations for Limiting Vibrations Select the right machine, equipment and attachments for a particular application. Replace any damaged seat by a DOOSAN genuine part. Keep the seat maintained and adjusted. • Adjust the seat and suspension for the weight and size of the operator.
Page 36 ARO1050S provide a ground. Figure 7 Keep fuel and other fluid reservoir caps tight and do not start the engine until caps have been secured. Safety DX140R/DX140LCR 1-26...
Page 37 Use water for cleaning to keep down the dust. Figure 10 • Work on the machine or component with the wind at your back whenever possible. • Always observe any regulations related to the work site and working environment. Safety DX140R/DX140LCR 1-27...
Page 38 Use the handrails and steps to escape from the machine. The above is the basic method for escaping from the machine, but changing the method may be necessary according to the conditions, so carry out practice drills at the work site. Safety DX140R/DX140LCR 1-28...
Page 39 If any glass on the machine is broken, replace it with new glass immediately. Attachment Precautions Option kits are available through your dealer. Contact DOOSAN for information on available one-way (single-acting) and two-way (double-acting) piping/valving/auxiliary control kits. Because DOOSAN cannot anticipate, identify or test all the attachments...
Page 40 When carrying out disassembly or maintenance of the accumulator, or when disposing of the accumulator, the charged gas must be properly released. Contact your DOOSAN distributor. • Wear safety goggles and protective gloves when working on an accumulator. Hydraulic oil under pressure can penetrate the skin and cause serious injuries.
Page 41: Before Starting Engine
Avoid entering soft ground. It will be difficult for the machine to escape. FG000372 Avoid operating your machine to close to the edge of cliffs, Figure 19 overhangs, and deep ditches. The ground may be weak in such areas. Safety DX140R/DX140LCR 1-31...
Page 42 Check the operation of the gauges and the angle of the mirrors, and check that safety lever is in "LOCKED" position. If any abnormalities are found in the above checks, carry out repairs immediately. Safety DX140R/DX140LCR 1-32...
Page 43 Do not short-circuit the starting motor to start the engine. This is not only dangerous, but may also damage the machine. When starting the engine, sound the horn as an alert. Start and operate the machine only while seated. Safety DX140R/DX140LCR 1-33...
Page 44 The normal travel position is with idler wheels to the front under the cabin and the drive sprockets to the rear. When the undercarriage is in the reversed position, the travel controls must be operated in opposite directions. Safety DX140R/DX140LCR 1-34...
Page 45 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 46: Machine Operation
• Ensure that no unauthorized person can come within the turning radius or direction of travel. Be sure to observe the above precautions even if a travel alarm or mirrors are installed. Safety DX140R/DX140LCR 1-36...
Page 47 When traveling over bridges or structures on private land, check first that bridge or structure can withstand the weight of the machine. When traveling on public roads, check with the local authorities and follow their instructions. Safety DX140R/DX140LCR 1-37...
Page 48 Avoid changing travel direction on a slope. This could result in tipping or sideslipping of the machine. When possible, operate the machine up slopes and downslopes. Avoid operating the machine across the slope, when possible. FG000365 Figure 22 Safety DX140R/DX140LCR 1-38...
Page 49 Investigate the configuration and ground conditions of the work site beforehand to prevent the machine from falling and to prevent the ground, stockpiles, or banks from collapsing. FG000367 Figure 25 Safety DX140R/DX140LCR 1-39...
Page 50 NOTE: Before starting any operation near power lines (either aboveground or buried cable type), you should always contact the power utility company directly and work out a safety plan with them. Safety DX140R/DX140LCR 1-40...
Page 51 AVOID DEATH OR SERIOUS INJURY Never modify the operator cabin by welding, grinding, drilling holes or adding attachments unless instructed by DOOSAN. Changes to the cabin can cause loss of operator protection from rollover and falling objects, and result in serious injury or death.
Page 52 When the falling object protective structure is installed, and the front window needs to be cleaned, loosen the bolts marked with an arrow. Be sure to tighten bolts when done. Figure 30 FG014375 Safety DX140R/DX140LCR 1-42...
Page 53 FG000212 platform that will keep the machine as horizontal as possible. Figure 31 In addition, lower the bucket as far as possible, keep it pulled into the front, and keep the swing speed as low as possible. Safety DX140R/DX140LCR 1-43...
Page 54 Never Let Anyone Ride on Attachment Never let anyone ride on any work attachment, such as the bucket, crusher, grapple, or clamshell (grab bucket). There is a potential danger of the person falling and suffering serious injury. ARO1310L Figure 33 Safety DX140R/DX140LCR 1-44...
Page 55: Maintenance
OSHA certified lockout device and a length of chain or cable to keep the safety lever in the fully lowered, nonnative position. Warning tags, for controls are available from DOOSAN distributors. EX1301177 Figure 34...
Page 56 Do not flame cut on pipes or on tubes that contain flammable fluids. Before you weld on pipes or on tubes or before you flame cut on pipes or on tubes, clean the pipes or tubes thoroughly with a nonflammable solvent. Safety DX140R/DX140LCR 1-46...
Page 57 Do not smoke while you are checking the battery’s electrolyte levels. Electrolyte is an acid. Electrolyte can cause personal injury. Do not allow electrolyte to contact the skin or the eyes. Always wear protective glasses when you work on batteries. Safety DX140R/DX140LCR 1-47...
Page 58 • Wear protective clothing. • Make sure there is good ventilation. • Remove all flammable objects and make sure a fire extinguisher is available. Safety DX140R/DX140LCR 1-48...
Page 59 Attachment Removal DANGER AVOID DEATH DOOSAN warns any user, that removal of the counterweight from the machine, front attachment or any other part, may affect the stability of the machine. This could cause unexpected movement, resulting in death or serious injuries.
Page 60 If maintenance work is carried out with the inspection cover open but not locked, there is a danger that it may suddenly close and cause injury if there is a gust of wind. Safety DX140R/DX140LCR 1-50...
Page 61 Do not allow weight or equipment loads to remain suspended. Lower everything to the ground before leaving the 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 46 Safety DX140R/DX140LCR 1-51...
Page 62 If necessary depending on the type of failure, please contact your DOOSAN distributor for repairs. Precautions with High-pressure Lines, Tubes and Hoses When inspecting or replacing high-pressure piping or hoses, check to verify that pressure has been released from the circuit.
Page 63 Always put oil drained from your machine in containers. HAOA470L Never drain oil directly onto the ground. Figure 48 • Obey appropriate laws and regulations when disposing of harmful materials such as oil, fuel, solvent, filters, and batteries. Safety DX140R/DX140LCR 1-53...
Page 64: Battery
When charging the battery or starting with power from another source, let the battery electrolyte melt and check that there is no leakage of battery electrolyte before starting the operation. • Always remove battery from the machine before charging. Safety DX140R/DX140LCR 1-54...
Page 65 Connect positive cable first when installing cables and disconnect the negative cable first when removing them. The final cable connection, at the metal frame of the machine being charged or boost started, must be as faraway from the batteries as possible. Safety DX140R/DX140LCR 1-55...
Page 66: Towing
• If the engine on the problem machine will not start or there is a failure in the brake system. always contact your DOOSAN distributor. • Never go between the towing machine and the towed machine during the towing operation.
Page 67: Shipping And Transportation
See the Shop Manual for information on partial disassembly. Refer to the Transportation and Shipping section of this Operation and Maintenance Manual for information on loading, unloading and towing. Safety DX140R/DX140LCR 1-57...
Page 68: Excavator Rated Lift Capacity Tables
If the surface area of the load is large enough, wind gusts can create side loads. • Keep the bucket hook point directly over the load. Tag lines on opposite sides of the load can help maintain greater stability against side loads and wind gusts. Safety DX140R/DX140LCR 1-58...
Page 69 Figure 53. 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 starting a lift. Safety DX140R/DX140LCR 1-59...
Page 70 9.57 * 5.62 3.53 4.28 2.51 3.21 2.70 * 1.67 6.53 9.30 * 9.30 * 8.65 * 5.69 6.23 3.56 2.53 3.37 5.86 9.74 * 9.74 * 7.08 * 5.83 5.34 * 3.65 3.96 * 2.69 4.90 Safety DX140R/DX140LCR 1-60...
Page 71 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-61...
Page 72 5.72 3.59 4.35 2.55 3.27 1.93 2.70 * 6.53 9.30 * 9.30 * 8.65 * 5.78 6.33 3.62 4.37 2.57 3.42 2.04 5.86 9.74 * 9.74 * 7.08 * 5.92 5.34 * 3.71 3.96 * 2.74 4.90 Safety DX140R/DX140LCR 1-62...
Page 73 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-63...
Page 74 7.48 * 7.48 * 9.14 * 5.62 6.15 3.52 4.24 2.77 * 1.86 6.09 10.45 * 10.45 * 7.94 * 5.72 6.08 * 3.58 2.55 3.77 * 5.37 5.91 * 4.31 * 3.71 3.76 * 3.35 4.29 Safety DX140R/DX140LCR 1-64...
Page 75 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-65...
Page 76 9.14 * 5.59 6.12 4.22 2.48 3.18 1.89 2.77 * 1.85 6.09 10.45 * 10.45 * 7.94 * 5.69 6.08 * 3.56 4.28 2.53 3.77 * 2.28 5.37 5.91 * 5.87 4.31 * 3.69 3.76 * 3.34 4.29 Safety DX140R/DX140LCR 1-66...
Page 77 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-67...
Page 78 6.25 3.58 4.32 2.54 3.25 1.93 2.77 * 1.89 6.09 10.45 * 10.45 * 7.94 * 5.81 6.08 * 3.64 4.37 2.59 3.77 * 2.34 5.37 5.91 * 5.91 * 4.31 * 3.77 3.76 * 3.41 4.29 Safety DX140R/DX140LCR 1-68...
Page 79 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-69...
Page 80 9.14 * 5.81 6.36 3.64 4.39 2.59 3.31 1.97 2.77 * 1.93 6.09 10.45 * 10.45 * 7.94 * 6.08 * 4.44 2.64 3.77 * 2.38 5.37 5.91 * 5.91 * 4.31 * 3.83 3.76 * 3.46 4.29 Safety DX140R/DX140LCR 1-70...
Page 81 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-71...
Page 82 9.52 * 5.71 6.28 4.35 2.57 3.27 1.95 1.91 6.09 8.82 * 8.82 * 8.65 * 5.78 3.63 4.36 2.59 3.71 2.22 5.55 9.35 * 9.35 * 7.22 * 5.91 5.58 * 3.71 4.37 * 2.88 4.74 Safety DX140R/DX140LCR 1-72...
Page 83 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-73...
Page 84 1.16 * 1.16 * 7.16 5.83 * 5.83 * 8.74 * 5.48 6.11 3.42 4.22 2.42 3.17 1.83 1.36 * 1.36 * 6.71 8.35 * 5.59 6.18 3.48 4.26 2.46 2.65 * 1.68 * 1.68 * 6.06 Safety DX140R/DX140LCR 1-74...
Page 85 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-75...
Page 86 2.08 * 1.46 6.98 6.79 * 5.47 6.12 3.43 4.24 2.44 3.19 1.85 2.36 * 1.58 6.67 8.76 * 5.55 6.16 3.46 4.25 2.46 3.21 1.87 2.81 * 6.19 6.08 * 3.54 4.33 2.52 3.78 2.23 5.47 Safety DX140R/DX140LCR 1-76...
Page 87 Capacities marked with an asterisk (*) are limited by hydraulic capacities. Lift capacities shown do not exceed 75% of minimum tipping loads or 87% of hydraulic capacities. The least stable position is over the side. Lift capacities are in compliance with ISO 10567. Safety DX140R/DX140LCR 1-77...
Page 88 Safety DX140R/DX140LCR 1-78...
Page 89: Operating Controls
AVOID DEATH OR SERIOUS INJURY Warning lights. When any one or more of the warning lights on the control console, comes "ON", immediately stop operation and stop unit. Investigate and correct the problem before proceeding with operation. DX140R/DX140LCR Operating Controls...
Page 90: Component Locations
COMPONENT LOCATIONS FG014632 Figure 1 Operating Controls DX140R/DX140LCR...
Page 91 Center Joint Air Cleaner Track Guide Swing Bearing Battery Seat Lower Roller Cabin Upper Roller Boom Cylinder Travel Motor Work Lever (Joystick) Controls Track Link and Shoe Travel Lever Suction Filter Arm Cylinder Return Filter Boom Pumps DX140R/DX140LCR Operating Controls...
Page 92: Operator's Area
OPERATOR'S AREA FG014383 Figure 2 Operating Controls DX140R/DX140LCR...
Page 93 Engine Speed Control Dial Dozer Lever (Optional) (See page 2-9) (See page 3-25) Heater and Air Conditioner Safety Lever Control Panel (See page 3-12) (See page 2-48) Storage Compartment (See page 2-64) Starter Switch (See page 2-8) DX140R/DX140LCR Operating Controls...
Page 94: Operational Controls And Panels
OPERATIONAL CONTROLS AND PANELS 16 17 FG017135 Figure 3 Operating Controls DX140R/DX140LCR...
Page 95 Breaker/Booster/Shear Selector Switch Booster Button Cabin Work Light Switch Instrument Panel (Optional) Dozer Lever (Optional) Warning Light Switch (Optional) Fuel Heater Switch (Optional) Heater and Air Conditional Overload Warning Switch Control Panel (Optional) Wiper Control Panel Safety Lever DX140R/DX140LCR Operating Controls...
Page 96 This will help prevent damage to starter. WARNING AVOID DEATH OR SERIOUS INJURY DO NOT USE STARTING FLUIDS. The preheat system could cause the starting fluid to explode. Starting fluids should never be used. Operating Controls DX140R/DX140LCR...
Page 97 In this position, the manual pump control is "OFF". In this position, the manual pump control is "ON". CAUTION FG001343 AVOID INJURY Figure 7 Be sure to turn pump control to "O" (OFF) position, after the control system is operating properly. Operating Controls DX140R/DX140LCR...
Page 98 Each time this power button is pressed, the audio system is turned either "ON" or "OFF". If the audio system turns "ON", an indicator light above the button turns "ON". FG000019 Figure 10 Press the up button, to "INCREASE" volume. FG000020 Figure 11 Operating Controls DX140R/DX140LCR 2-10...
Page 99 In this position, "LOW" travel speed is selected. In this position, "HIGH" travel speed is selected. In this position, "AUTOMATIC" travel speed is selected. The travel speed automatically changes between "LOW" or "HIGH" range, depending on engine speed and travel motor loads. Operating Controls DX140R/DX140LCR 2-11...
Page 100 CAUTION 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 by the control. e.g. opening/closing, CW/CCW, crowd/dump, etc. Operating Controls DX140R/DX140LCR 2-12...
Page 101 12. Heater and Air Conditioner Control Panel This panel is used to control air conditioner and heater in operator's cabin. Refer to "Heater and Air Conditioner Control Panel" on page 2-48 for more details. FG014507 Figure 19 Operating Controls DX140R/DX140LCR 2-13...
Page 102 NOTE: Using soapy water or synthetic detergent instead of window cleaning fluid, can damage FG000243 Figure 23 the wiper blade or painted surfaces. Use standard window cleaning fluid: SSK703. Operating Controls DX140R/DX140LCR 2-14...
Page 103 In this position, the seat warmer is turned "OFF". In this position, the seat warmer is turned "ON". NOTE: The starter switch must be "ON" with the engine FG000034 running, for the heater to operate. Figure 26 Operating Controls DX140R/DX140LCR 2-15...
Page 104 AVOID INJURY Figure 29 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, CW/CCW, crowd/dump, etc. Operating Controls DX140R/DX140LCR 2-16...
Page 105 "Boost Mode" on page 3-21. NOTE: This button works with the breaker/boost/shear selector switch. See "9. Breaker/Boost/Shear Selector Switch" on page 2-12. FG000036 Figure 31 23. Instrument Panel See "Instrument Panel" on page 2-19. FG013662 Figure 32 Operating Controls DX140R/DX140LCR 2-17...
Page 106 There may be local government regulations about the use of excavators for lifting objects. Please observe these regulations. 27. Safety Lever See "Safety Lever" on page 3-12. Unlock Lock EX1300566 Figure 35 Operating Controls DX140R/DX140LCR 2-18...
Page 107: Instrument Panel
Down Arrow Button Engine Coolant Temperature (See page 2-34) Warning Display Selector Button Engine Check Warning (See page 2-34) Preheat Indicator Selection Button (See page 2-34) Work Light Indicator Home Selector Button Warning Light Camera Selector Button Operating Controls DX140R/DX140LCR 2-19...
Page 108 "ON", and be display in the screen. Stop operation and immediately and add fuel. FG014483 NOTE: See "Abnormal State Warning Symbols" on Figure 37 page 2-27, for location of this warning symbol and others. Check the fuel level on firm and level ground. Operating Controls DX140R/DX140LCR 2-20...
Page 109 Allow the engine to run at low idle speed until temperature gauge registers in the blue zone again. NOTE: See "Abnormal State Warning Symbols" on page 2-27, for location of this warning symbol and others. Operating Controls DX140R/DX140LCR 2-21...
Page 110 The hour meter is used to indicate the total number of running 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 42 Operating Controls DX140R/DX140LCR 2-22...
Page 111 Allowing the engine to idle will dissipate heat. Check the coolant level, look for a loose fan belt, inspect for debris around radiator, and so on. When the temperature reaches the normal range, the engine speed will automatically recover. Operating Controls DX140R/DX140LCR 2-23...
Page 112 NOTE: If warning light appears, Stop the machine and repair the cause of the fault If camera mode is being used, Move to the main screen and check the fault FG017012 Figure 49 Operating Controls DX140R/DX140LCR 2-24...
Page 113: Multifunction Gauge And Graphic Information
The symbol will sequentially move like lightening. NOTE: See Figure 53 thru Figure 56. Abnormal Condition: FG000047 If the symbol is not displayed, it means there is a communication error. Figure 51 NOTE: See Figure 52. Operating Controls DX140R/DX140LCR 2-25...
Page 114 Communication Error Warning If a communication error is generated between EPOS controller and instrument panel, this symbol will be displayed. When this symbol is displayed, contact a DOOSAN distributor or sales agency. NOTE: If a communication error occurs during operation, the last mode setting is stored.
Page 115 It displays the reading in BARs. FG000052 Figure 56 Abnormal State Warning Symbols Hydraulic Oil Overheating Warning Fuel Shortage Warning Return Filter Clogged Warning Air Cleaner Clogged Warning Overload Warning (Optional) Water in fuel Warning DS1801626 Figure 57 Operating Controls DX140R/DX140LCR 2-27...
Page 116 FG000056 Figure 59 Fuel Shortage Warning If the fuel quantity is too low, this symbol appears on the screen. If this light turns "ON", add fuel as soon as possible. FG000057 Figure 60 Operating Controls DX140R/DX140LCR 2-28...
Page 117 If this warning appears on the screen and a warning Figure 63 buzzer sound, reduce the load immediately. If you continue to work, the machine can be turned over or damage to hydraulic components and structural parts could occur. Operating Controls DX140R/DX140LCR 2-29...
Page 118 Water In Fuel Warning This symbol indicates when the water is full in the fuel prefilter When this symbol appears drain the water from the fuel prefilter as soon as possible. FG013744 Figure 64 Operating Controls DX140R/DX140LCR 2-30...
Page 119: Mode Selector Buttons
NOTE: When the economy mode button is pushed again, it is turned OFF and the economy mode is deactivated and returns to the standard FG013710 operating mode. Figure 67 Operating Controls DX140R/DX140LCR 2-31...
Page 120 The flow control button is used to set the flow rate of pump to match the installed tool/attachment for optimal performance, without damaging it. NOTE: For further details, see "Flow Control" on page 2-43. FG013896 Figure 69 Operating Controls DX140R/DX140LCR 2-32...
Page 121: Setting Main Menu
FG013591 Figure 70 FG013712 Figure 71 1. Up Arrow Button Up arrow button ( ), is used to move a menu item "Up" or to "Left". FG000068 Figure 72 Operating Controls DX140R/DX140LCR 2-33...
Page 122 Figure 74 previous screen from each submenu. 4. Selection Button Selection button ( ), is used to set a menu or clear the operating hour of filter/oil. FG013898 Figure 75 Operating Controls DX140R/DX140LCR 2-34...
Page 123 5. Home Button Home button (HOME), is used to access to the default screen from each submenu. FG013713 Figure 76 Operating Controls DX140R/DX140LCR 2-35...
Page 124 The screen will return from the main menu to the normal display screen, by again pressing the "ESC" ( ) button. NOTE: If more than twenty seconds are spent in any menu, without changing the screen, it will return to the normal display screen. FG013591 Figure 78 Operating Controls DX140R/DX140LCR 2-36...
Page 125 If more than twenty seconds are spent in the menu, 3. Filter / Oil Info without changing the screen, it will return to the 4. Adjust Display normal display screen. 5. Set Password : UP : DOWN : SELECT FG013565 Figure 81 Operating Controls DX140R/DX140LCR 2-37...
Page 126 "DOWN" ( ) buttons. At the bottom of the screen the operating hour (Hrs) of each filter and/or oil is displayed. 1. Fuel Filter Hrs : 0045Hrs 42m : UP : DOWN : SELECT FG013568 Figure 85 Operating Controls DX140R/DX140LCR 2-38...
Page 127 If more than twenty seconds are spent in the menu, without changing the screen, it will return to the normal display screen. The screen is returned to the main menu by pressing the "ESC" ) button. Operating Controls DX140R/DX140LCR 2-39...
Page 128 30%, the default backlight is set to 10%. Default value of camera display is 50% (brightness), 50% (contrast), 90% (backlight). The screen is returned to the main menu by pressing the "ESC" ) button. The display is then saved. Operating Controls DX140R/DX140LCR 2-40...
Page 129 After changing password, be sure to use the changed password. CAUTION FG013717 AVOID INJURY Figure 93 Failure to enter correct password three times, will return normal display screen, and another attempt will not be possible for ten minutes. Operating Controls DX140R/DX140LCR 2-41...
Page 130 Select adoption (lock) or nonadoption (unlock) at set : UP : DOWN : SELECT password menu. FG013718 NOTE: Keep in mind never to forget password. Figure 94 NOTE: Please contact a DOOSAN distributor, if you forget your password. Operating Controls DX140R/DX140LCR 2-42...
Page 131: Flow Control
The symbol in the upper left corner of the display screen will change according to the position that the selector switch is in. Compare the symbols shown in (Figure 98 and Figure 99). FG000025 Figure 97 Operating Controls DX140R/DX140LCR 2-43...
Page 132 , Figure 96) to return to normal display screen and save the flow rate setting. If there is no adjustment for twenty seconds, the flow control screen will return to the normal display screen. : APPLY ESC: CANCEL FG014885 Figure 100 Operating Controls DX140R/DX140LCR 2-44...
Page 133: Operation Selection Display
OPERATION SELECTION DISPLAY In the monitor you can see the application that is currently selected. Power Mode Selection FG013720 Figure 101 Standard Mode Selection FG013721 Figure 102 Economy Mode Selection FG013722 Figure 103 Operating Controls DX140R/DX140LCR 2-45...
Page 134 Auto Idle Selection AUTO FG013723 Figure 104 Power Boost Selection FG013724 Figure 105 Breaker Selection FG013725 Figure 106 Shear Selection FG013726 Figure 107 Operating Controls DX140R/DX140LCR 2-46...
Page 135 When the camera mode button is pushed to "ON" position, the camera window appears on the screen. When the camera mode button is pushed again, it is turned "OFF" and the camera mode is deactivated and return to the default screen. FG013836 Figure 109 Operating Controls DX140R/DX140LCR 2-47...
Page 136: Heater And Air Conditioner Control Panel
Location of Controls and Vents FG014384 Figure 110 The heater and air conditioner are combined into one unit under the operator's seat. The operator can control cabin temperature using the control panel installed in the switch panel. Operating Controls DX140R/DX140LCR 2-48...
Page 137 When the light switch is turned to "I" or "II" position, the LED for illuminating in the control panel will turn "ON". Off Button This button is used to stop the fan and air conditioner. FG000089 Figure 112 Operating Controls DX140R/DX140LCR 2-49...
Page 138 FG014385 Figure 115 Used to direct air flow to lower portion of operator's cabin and feet. This mode is mainly used for heating. FG014386 Figure 116 Operating Controls DX140R/DX140LCR 2-50...
Page 139 LCD. FG000290 Figure 118 FG000291 Figure 119 Fan Speed Selector Buttons These buttons are used to control the speed of the blower fan by the stages of low, middle and high. FG014377 Figure 120 Operating Controls DX140R/DX140LCR 2-51...
Page 140 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 DX140R/DX140LCR 2-52...
Page 141: Stereo
FM Selection USB Loading Port USB Selection Sound Mode Selector Display Mode Control CD Player (Optional) TUNE VOLUME SOUND AM/FM TRACK ST RDS REG TA TP PTY AF DIR INT RPT RDM EQ FG017017 Figure 123 Operating Controls DX140R/DX140LCR 2-53...
Page 142: Miscellaneous Electrical Devices
If the circuit breaker is cut off, check all related circuits, this means something is wrong in the electric circuit. After maintenance, press the red button for normal operation of circuit breaker. HAAE2110 Figure 126 Operating Controls DX140R/DX140LCR 2-54...
Page 143 When changing the fusible link, replace the fusible link with the same capacity part. Otherwise, a fire could break out in the wiring harness and/or other components of the circuit. Always use original DOOSAN parts. Fuse Boxes There are two fuse boxes (Figure 128) in the right cover behind the seat.
Page 144: Seat Adjustment
Seat Height It is possible to move the seat up or down by combining adjustments forward and rear tilt. Adjust the seat according to operator's size and work conditions. Height adjustment is 60 mm (2.4 in). Operating Controls DX140R/DX140LCR 2-56...
Page 145 Turn the dial (6, Figure 130) counterclockwise to increase FG000778 the force of the lumbar support Figure 130 7. Headrest The headrest (7, Figure 130) can be adjusted forward/ backward and up/down. Move it by holding both sides. Operating Controls DX140R/DX140LCR 2-57...
Page 146 Adjust belt length so that it comfortably tight against the operator's pelvic region (hipbone). HAOB140L Figure 131 Press the button (3, Figure 132) in the center of buckle (2) and pull out belt (1) to unlock. HAOB150L Figure 132 Operating Controls DX140R/DX140LCR 2-58...
Page 147 The air suspension seat can be heated. The switch on the left control stand is used to warm the seat. When heating is not needed or seat is warmed, turn the switch to "OFF" position. FG000034 Figure 135 Operating Controls DX140R/DX140LCR 2-59...
Page 148: Ceiling Cover
Lower bucket or work tool to ground. Move safety lever (Figure 136) to "LOCK" position. Pull down cover with the handle (Figure 137) so lock (1) can be locked in the bracket in ceiling frame. FG014390 Figure 137 Operating Controls DX140R/DX140LCR 2-60...
Page 149: Front Windows
NOTE: If window happens to fall with a strong impact against machine, while some part of your body is extended out of cabin, it can result in bodily injury. Operating Controls DX140R/DX140LCR 2-61...
Page 150 (3) with push button (4). WARNING AVOID DEATH OR SERIOUS INJURY Never have wet hands when handling a window. Never drop window or let it come into contact with other FG014394 parts of the machine. Figure 142 Operating Controls DX140R/DX140LCR 2-62...
Page 151: Door Side Latch
Keep door closed and locked when machine is not in use. FG014395 Figure 143 To release door from side of cabin, push latch lever (2, Figure 144) down. The latch lever is to the left of operator's seat. FG014396 Figure 144 Operating Controls DX140R/DX140LCR 2-63...
Page 152: Cabin Storage Compartments
There is a separate small tray (3, Figure 146) on the right side of operator's seat. FG014398 Figure 146 ASHTRAY An ashtray (1, Figure 147) is on the right side of the operator's seat. Always close ashtray after putting out a cigarette. FG014399 Figure 147 Operating Controls DX140R/DX140LCR 2-64...
Page 153: Sun Visor
Figure 149 CUP HOLDER There is a cup holder on the right side of the operator's seat (1, Figure 150). Open the access cover and lower it to a horizontal position. FG014402 Figure 150 Operating Controls DX140R/DX140LCR 2-65...
Page 154: Emergency Glass Breaking Tool
Grip handle firmly and use sharp point to break glass. FG014380 WARNING Figure 151 AVOID DEATH OR SERIOUS INJURY Protect your eyes when breaking the glass. Operating Controls DX140R/DX140LCR 2-66...
Page 155: Miscellaneous Access Covers And Doors
Open the cover and slide prop rod (1, Figure 154) 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. FG014405 Figure 154 Operating Controls DX140R/DX140LCR 2-67...
Page 156 Operating Controls DX140R/DX140LCR 2-68...
Page 157: Operation
Operation TO HANDLE A NEW EXCAVATOR All DOOSAN excavators are inspected and adjusted 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 158: Starting And Stopping The Engine
After starting machine - Check that all operational controls and components, are in proper operating condition, and are functioning correctly. Stop operation and correct any malfunction before continuing work. Operation DX140R/DX140LCR...
Page 159 • Fuel gauge • Hydraulic oil temperature gauge FG000084 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 DX140R/DX140LCR...
Page 160 Wait about five minutes and repeat above step. FG000085 Figure 5 After engine has started, release key. Key will return to "I" (ON) position (Figure 5). Follow procedures in "Hydraulic System Warm-up" on page 3-9. Operation DX140R/DX140LCR...
Page 161 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, and so on. Operation DX140R/DX140LCR...
Page 162 Set engine speed control dial slightly above "LOW IDLE" (Figure 7). Sound horn. HAOB34L Figure 7 Turn starter switch to "I" (ON) position (Figure 8). When preheat cycle is completed, the preheat indicator light (1, Figure 9) will turn "OFF". FG000084 Figure 8 FG013732 Figure 9 Operation DX140R/DX140LCR...
Page 163 (+) terminal first. Then connect auxiliary battery negative (-) terminal to the frame of the depleted battery machine second. Connect positive cable first when installing cables and disconnect the negative cable first when removing. Operation DX140R/DX140LCR...
Page 164 Disconnect the other end of black negative (-) cable (2, Figure 12) from the booster batteries (3). Disconnect red positive (+) cable (1, Figure 12) from the booster batteries (3). Disconnect red positive (+) cable (1, Figure 12) from the machine batteries (4). Operation DX140R/DX140LCR...
Page 165 Do this for five minutes. Check for clearance and fully raise the front attachment. Swing clockwise 3 revolutions. Swing counterclockwise 3 revolutions. Travel forward and reverse at low speed for two revolutions of the drive sprocket. FG014408 Figure 15 Operation DX140R/DX140LCR...
Page 166 Move safety lever to "UNLOCK" position. Unlock Lock EX1300566 Figure 18 Slowly cycle boom, arm and bucket cylinders about five times without a load to circulate the oil through the system. Do this for five minutes. FG014408 Figure 19 Operation DX140R/DX140LCR 3-10...
Page 167 Figure 21 Move safety lever to "LOCK" position (Figure 22). Unlock Lock EX1300566 Figure 22 Set engine speed control dial to "LOW IDLE" (Figure 23). Allow engine to idle for three - five minutes. HAOB290L Figure 23 Operation DX140R/DX140LCR 3-11...
Page 168: Safety Lever
Especially, when adjusting the seat, control stands, or raising the front window, lower window, or ceiling cover, never forget to lock the safety lever in its "LOCKED" position. Be careful not to move the work levers (joysticks) when moving safety lever. Operation DX140R/DX140LCR 3-12...
Page 169: Travel
Make sure to 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 stopped engine to avoid accidental activation. Operation DX140R/DX140LCR 3-13...
Page 170 An example is if the machine is traveling on a flat, solid surface, the 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 DX140R/DX140LCR 3-14...
Page 171 "X" is the sprocket end of the track. "X" FG000305 Figure 29 Stopping travel (Figure 30) - Returning travel levers to "NEUTRAL" position will automatically apply brakes and stop excavator. NOTE: "X" is the sprocket end of the track. "X" FG000306 Figure 30 Operation DX140R/DX140LCR 3-15...
Page 172 [1.0 - 1.5 km/h (0.62 - 0.93 MPH)]. Reduced engine speed, to avoid shock loading the equipment. Be careful that an excessive force is not added to equipment by touching or climbing on rocks. FG000423 Figure 33 Operation DX140R/DX140LCR 3-16...
Page 173 Even though engine stops on a slope, do not operate swing control. hydraulic accumulators can cause the unit to swing. FG000128 NOTE: Do not open or close operator's door on a slope. Figure 36 Make sure door is latched. Operation DX140R/DX140LCR 3-17...
Page 174 Remove machine from the submerged location to firm, EX1300536 dry ground. Do not operate until proper Figure 38 inspection maintenance have been completed. Refer to the Shop Manual or contact your distributor. Operation DX140R/DX140LCR 3-18...
Page 175: Operating Instructions
Required to perform heavy work in a short period of time. Power Mode • Fast speed loading. • Fast speed travel. • General work. Standard Mode • Optimize fuel consumption. • Light work. Economy Mode • Minimize fuel consumption. • Reduce noise. Operation DX140R/DX140LCR 3-19...
Page 176 "OFF". WARNING AVOID DEATH OR SERIOUS INJURY Turn "OFF' auto idle function when performing work in close operating area, i.e., work in a narrow area and loading/unloading on or off a trailer. Operation DX140R/DX140LCR 3-20...
Page 177 (joystick). The breaker/boost/shear selector switch must be in the "O" (BOOST) position. NOTE: The power boost mode does not affect forward and reverse travel. Do not use this switch for more than ten seconds. FG000117 Figure 43 Right-hand Work Lever (Joystick) Operation DX140R/DX140LCR 3-21...
Page 178 When operating the arm, it may 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 46 Operation DX140R/DX140LCR 3-22...
Page 179 Use the following procedure to change the position of the select valve. The select valve is located in the rear of the cabin. <BHL PATTERN> Rotating spool to the ISO position or to the BHL position. (Figure 49) FG004954 Figure 49 Operation DX140R/DX140LCR 3-23...
Page 180 Figure 51 supplied. NOTE: Even after stopping the engine, the front can be lowered to the ground by operating work lever (joystick), by setting safety lever on "UNLOCK" position and turning starter switch "ON". FG000120 Figure 52 Operation DX140R/DX140LCR 3-24...
Page 181 "HIGH SPEED" will cause damage to drive system. FG009722 Blade down Figure 53 10. Blade up FG009730 Figure 54 Two-Piece Boom (Optional) 11. Upper boom up 12. Upper boom down FG019264 Figure 55 FG009729 Figure 56 Operation DX140R/DX140LCR 3-25...
Page 182: Operating Precautions
Do not continually "bottom out" the hydraulic cylinders. Machine damage can occur if the cylinders are fully extended or retracted, example: arm cylinder fully retracted and the bucket cylinder is extended to rotate the bucket into the ground. FG000132 Figure 59 Operation DX140R/DX140LCR 3-26...
Page 183 Keep the travel motors (1, Figure 62) to the rear. See Figure 62. FG000677 Figure 62 10. Do not excavate underneath the machine. See Figure 63. FG000170 Figure 63 Operation DX140R/DX140LCR 3-27...
Page 184 13. Do not use the bucket as a hammer or ramming device. This is dangerous and causes damage to the front attachment. See Figure 66. FG000173 Figure 66 14. Do not dig with the excavator tracks raised. This can result in structural and mechanical failures. FG000174 Figure 67 Operation DX140R/DX140LCR 3-28...
Page 185 Make sure that all optional equipment has been authorized and installed properly. 17. Do not move dirt or objects by swinging the excavator into them. This can result in structural and mechanical failures. Operation DX140R/DX140LCR 3-29...
Page 186 If swing bearing gets wet, immediately grease it until all old grease is purged from bearing. If water gets into swing gear housing, drain water immediately by removing lower inspection cover. Apply new grease. After working in water, purge old grease on bucket pins. FG000181 Figure 70 Operation DX140R/DX140LCR 3-30...
Page 187: Parking Excavator
Set engine speed control dial on "LOW IDLE". HAOB290L Figure 73 If you touch the operation lever unintentionally, it may create a serious accident. Before leaving operator's seat, move safety lever to "LOCK" position. Unlock Lock EX1300566 Figure 74 Operation DX140R/DX140LCR 3-31...
Page 188: Towing Procedure
FG015010 Figure 75 IMPORTANT Use shackle hook on track frame to only haul objects that weigh less than 7 metric tons (7.71 U.S. Tons). Never use it to haul objects over 7 metric tons (7.71 U.S. Tons). Operation DX140R/DX140LCR 3-32...
Page 189: Hydraulic Attachments (Optional)
If a hydraulic breaker is installed, consider equipment's stability and suitability for such modification. Also, consider hydraulic oil pressure and quantity. When selecting a hydraulic breaker consult with a DOOSAN distributor or sales agency. Hydraulic Hoses and Tubing for Breaker When installing hydraulic breaker, assemble according to drawings provided with kit.
Page 190 Do not use the breaker if the hydraulic hoses vibrate excessively. See Figure 78. 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. FG000215 Figure 78 Operation DX140R/DX140LCR 3-34...
Page 191 Figure 81 reduction in service life. Do not curl the breaker tool tip into the arm or boom when traveling or parking the excavator. See Figure 82. FG000216 Figure 82 Operation DX140R/DX140LCR 3-35...
Page 192 If the relief valve pressure is adjusted while the hydraulic breaker is connected, there is possibility that a high-pressure spike or setting could break a hose or pipe. Personal injury or death could result from a hydraulic hose or pipe failure. Operation DX140R/DX140LCR 3-36...
Page 193 100% 500 Hours 100 Hours Work These service intervals only apply, when a genuine DOOSAN oil and filter are used. If any other brands are used, the guaranteed changed interval must be reduced in half. 105 116 FILTER (First Replacement)
Page 194: Adjusting The Pump Flow
Press "SELECT" ( ) button, to return to normal display screen and save the flow rate setting. FLOW CONTROL : APPLY ESC: CANCEL <Normal Display> <Flow Control Display> FG013831 Figure 86 Setting Flow Rate (l/min) 48.5 78.5 96.5 106.5 Operation DX140R/DX140LCR 3-38...
Page 195 When operating breaker or shear when using button on a joystick, and it is not to be controlled by the Shear pedal, be sure to keep the stopper in the "LOCK" position in order for the pedal not to be activated. FG000434 Figure 89 Operation DX140R/DX140LCR 3-39...
Page 196 NOTE: The middle button is for the horn. Left button is for counterclockwise rotation, and the right one is FG014542 for clockwise rotation. Figure 93 Left-hand Work Lever (Joystick) Operation DX140R/DX140LCR 3-40...
Page 197: 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 94 center line is increased. Operation DX140R/DX140LCR 3-41...
Page 198 Provide tag lines to prevent load from pendulating. Pendulating can cause a change in radius. A change in radius could exceed the load chart rating or cause a tip over condition. Govern travel speed to suit conditions. Avoid sudden starts and stops. Operation DX140R/DX140LCR 3-42...
Page 199: Operation Under Unusual Conditions
Check all machine controls and/or functions to be sure they are operating correctly. An extra outer air filter must be kept in the operator's cabin to replace element that could become iced and cause restricted air flow to engine. Operation DX140R/DX140LCR 3-43...
Page 200 Section 5, of this manual. Check for water content before filling fuel tank. High temperatures and cooling off cause condensation in storage drums. Lubricate as specified in "Periodic Service Chart and Table" Section 4, in this manual or Lubrication Decal on the machine. Operation DX140R/DX140LCR 3-44...
Page 201 Sand mixed with lubricant becomes very abrasive and speeds wear on parts. Protect machine from dust and sand as much as possible. Park machine under cover or protect with tarpaulin to keep dust and sand from damaging unit. Operation DX140R/DX140LCR 3-45...
Page 202 Check engine operating temperature for evidence of overheating. The pressure cap on radiator must make a perfect seal to maintain coolant pressure in the system. Operation DX140R/DX140LCR 3-46...
Page 203: Road Liners (Machine Equipped With Road Liner)
U-shaped ditch liners, blocks, on crushed rock or the sharp edges of rocks, iron beams, or scrap iron. Any damage resulting from the customer's mistaken use of the machine shall not be included in the scope of the warranty. Operation DX140R/DX140LCR 3-47...
Page 204: Operation
If the bolts heads are broken, the bolt cannot be removed. When installing road liners, always install them to all links on both sides. If they are installed to only one part of the links, their durability will be greatly reduced. Operation DX140R/DX140LCR 3-48...
Page 205 12. Because of the properties of rubber, use the road liners within a range of -25°C (-77°F) to +65°C (-149°F). 13. When carrying out bucket operations, be careful not to damage the road liners with the bucket. Operation DX140R/DX140LCR 3-49...
Page 206 Operation DX140R/DX140LCR 3-50...
Page 207: Inspection, Maintenance And Adjustment
HAOA601L Figure 1 NOTE: Besides the normal hour meter, the multifunction gauge can be used to keep track of the hours on individual filters. See "Filter/Oil Info" on page 2-38. FG013662 Figure 2 DX140R/DX140LCR Inspection, Maintenance and Adjustment...
Page 208 Please make note of these numbers and their locations. These will be required whenever warranty or service work is requested. Keep this number on file, incase the machine is stolen. Figure 3 Doosan Infracore Co., Ltd. 7-11, Hwasu-dong, Dong-gu, Incheon, Korea MODEL PRODUCT IDENTIFICATION NUMBER...
Page 209 O-rings, etc., are tight and are not showing signs of wear or damage. If the inspection or test procedure requires that engine be running, make sure to keep all unauthorized personnel away from the machine, and that all industry standard safety precautions are followed. Inspection, Maintenance and Adjustment DX140R/DX140LCR...
Page 210: Preliminary Work Machine Setup For Maintenance
Unlock Lock EX1300566 Figure 8 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. HAOB290L Figure 9 Inspection, Maintenance and Adjustment DX140R/DX140LCR...
Page 211 Never leave the cabin with the FG000175 engine running. Figure 10 Before starting maintenance work, hang up a tag, "Do Not Touch When Performing Inspection or Maintenance" on cabin door or work lever. FG000401 Figure 11 Inspection, Maintenance and Adjustment DX140R/DX140LCR...
Page 212: 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 "Description of Lubrication and Service Chart" on page 4-11 for locations.
Page 213 (Engine oil) - Engine oil must meet API CI-4/ACEA E5. Hydraulic oil change interval is 4,000 hours, only when DOOSAN Genuine Oil is used. If other brands of oil is used, guaranteed change interval is 2,000 hours. Note that mixing ratio is for reference purpose only, and is not an absolute standard.
Page 214 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 4-72.
Page 215: Fluid Capacities
If the level is between lower limit line and upper limit  line of the gauge, the level is correct. If the level is low, open the cover on the tank and add hydraulic oil. Inspection, Maintenance and Adjustment DX140R/DX140LCR...
Page 216: Lubrication And Service Chart
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 Return Filter Fuel Water Separator Hydraulic Oil Tank Breather Fuel Cap Filter Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-10...
Page 217 Description of Lubrication and Service Chart 250h 500h 1000h 2000h EX1300917 Figure 12 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-11...
Page 218 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 4-72, for further explanation.
Page 219: Maintenance Intervals
Replace Hydraulic Oil Return Filter (After First 250 Hours) 4-36 Change Pilot Filter (After First 250 Hours) 4-36 Inspect Pins and Bushings of Front End Attachments for Signs of Wear 4-36 Check Fluid Levels in Batteries 4-36 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-13...
Page 220: Service Item Page
Major Parts - Periodic Replacement 4-63 12,000 Hour / Six Year Service Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 CEN) 4-64 ** These checks need to be completed by an authorized DOOSAN dealer. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-14...
Page 221: 10 Hour / Daily Service
Lower dozer blade to the ground. FG009564 Inject grease at total 6 points by 3 points per dozer cylinder Figure 14 by means of using grease gun. Neatly remove old grease that has leaked out after greasing. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-15...
Page 222: Check Engine Oil Level
If oil is above "HIGH" mark on dipstick, some must be drained to return oil to proper level. Add oil through engine oil fill cap (2, Figure 15), if the oil level is below the "LOW" mark. FG000616 Figure 16 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-16...
Page 223: Check Level Of Hydraulic Oil Tank
If the level is below "L" mark add oil. Stop engine. The hydraulic tank is pressurized. Lift the breather cap slowly to allow the pressurized air to vent. Remove the upper cover of the hydraulic tank and add oil. FG014418 Figure 19 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-17...
Page 224: Check For Leaks In Hydraulic System
Perform a daily walk-around inspection to make sure that hoses, piping, fittings, cylinders and hydraulic motors are not showing any signs of leakage. If any is noted, determine the source of the leak and repair. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-18...
Page 225: Check Fuel Level
Figure 22 Check for Leaks in Fuel System Perform an inspection of the engine compartment to verify that fuel system is not leaking. If any is noted, determine the source of the leak and repair. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-19...
Page 226: Check Water Separator & Pre Fuel Filter (Fuel Prefilter) And Drain Water As Required
(2, Figure 25) on bottom of bowl (1). NOTE: Dispose of drained fluids in compliance with all applicable environmental laws and regulations. Close drain valve. open close FG000438 Figure 25 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-20...
Page 227: Check Oil Level Of Swing Reduction Device
(3, Figure 28) of drain valve and connect hose (4) to the valve. Drain the excessive oil into a suitable container. NOTE: Dispose of drained fluids in compliance with all applicable environmental laws and regulations. FG009556 Figure 28 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-21...
Page 228: Clean Dust Net In Front Of Oil Cooler And Intercooler
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 FG014423 Figure 30 50% concentration coolant to the tank. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-22...
Page 229: 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 33. NOTE: These instructions are only for DOOSAN OEM buckets. If you are using other manufacturers' buckets, refer to their specific instructions.
Page 230: Inspect Cooling Fan Blade
Check the engine intake hose, and hose bands for damage and tightness. If damaged, wrinkled, or loose, replace or retighten or contact your nearest DOOSAN dealer. IMPORTANT Severe engine damage will result from running with unfiltered air. FG014416...
Page 231: Inspect Structure For Cracks And Faulty Welds
"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 232: Check Operation Of All Exterior Lights, Horn And Control Console Indicator And Monitor Lights
Restore operation of any light bulbs that do not turn "ON" at this time. Sound the horn. Repair or replace if required. Turn "ON" and inspect all exterior work lights. Replace any monitors, burned out bulbs or cracked or broken housings or lenses. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-26...
Page 233: Check Operation Of All Controls
With the engine at rated speed, operate all of the controls. Follow cold weather hydraulic system warm-up procedures. Note any slow operations or unusual movements. Determine the cause and repair the fault before operating. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-27...
Page 234: 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 DX140R/DX140LCR 4-28...
Page 235: Grease Swing Bearing
Park machine on firm and level ground. Lower the front attachment to the ground and stop engine. There are three grease fittings for the swing bearing. Do not over lubricate. Purge old grease with new. Remove all purged grease. FG014425 Figure 41 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-29...
Page 236: Grease Dozer Blade Pin (Optional)
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 4-79. Jack up each track and perform the two speed travel motor test. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-30...
Page 237: 250 Hour / Monthly Service
Boom Arm Joint Pin (2 Points) (2 Points) Arm Cylinder Rod Pin (1 Point) Boom Foot Pin (2 Points) Bucket Cylinder Head Pin Boom Cylinder Rod Pin (2 Points) (1 Point) Arm Cylinder Head Pin (1 Point) Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-31...
Page 238 Boom cylinder rod pin (2 points) Arm cylinder head pin (1 point) FG009567 Figure 46 Boom arm joint pin (2 points) Arm cylinder rod pin (1 point) FG006458 Figure 47 Bucket cylinder head pin (1 point) FG006459 Figure 48 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-32...
Page 239: Check Engine Fan Belt Tension
The belt should flex Figure 49 approximately 10 mm (0.4 in). See Figure 49. To adjust the belt, loosen the alternator adjustment plate bolts, adjust the belt tension and retighten the bolts. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-33...
Page 240: Check Engine Fan Belt Wear
250 hours. If the tension falls below the required minimum, the belt slips damaging the belts and pulley grooves. NOTE: When operating in abrasive conditions, check tension every 100 hours. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-34...
Page 241: Change Breaker Filter (Optional)
NOTE: 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 DX140R/DX140LCR 4-35...
Page 242: Replace Hydraulic Oil Return Filter (After First 250 Hours)
Attachments for Signs of Wear Check Fluid Levels in Batteries See "Inspection of Battery Electrolyte Level" on page 4-69 for further information. Inspect for Any Loose or Missing Nuts and Bolts Inspect Fuel System Hose Clamps Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-36...
Page 243: 500 Hour / 3 Month Service
FG014430 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. FG009571 Figure 53 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-37...
Page 244 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. FG003365-1 Figure 56 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-38...
Page 245 NOTE: All right and left call outs are based on the operator being seated in the operator's seat facing the front. The outer filter is located behind the operator’s seat. FG014509 Figure 57 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-39...
Page 246 If using compressed air to clean the element, make sure that proper eye protection is worn. Open the cover by removing knobs (1, Figure 60). Remove screw (2, Figure 61) and filter (3, Figure 61) from the cover. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-40...
Page 247 To prevent damage to the cores, apply compressed air from an appropriated distance. Damaged core can cause water leakage or overheating. In a dusty site, check the core daily, irrespective of the maintenance interval. FG009574 Figure 64 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-41...
Page 248 Install evacuator valve with lips parallel to the Figure 66 cover. Remove the access cover (2, Figure 67) by loosening the latches (3). Remove outer filter (4, Figure 67) from the housing. Do not remove inner filter (5). FG000702 Figure 67 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-42...
Page 249 After filter service be sure to install cover with arrows pointing "UP". NOTE: If after cleaning the outer filter, the air cleaner FG000412 clogged indicator remains "ON", replace the Figure 69 outer and inner filters. Do not clean inner filter. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-43...
Page 250 When it reach the 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 DX140R/DX140LCR 4-44...
Page 251 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 DX140R/DX140LCR 4-45...
Page 252 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 4-51). Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-46...
Page 253: 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 79 before the expected replacement date. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-47...
Page 254 Install service cover plate. Tighten the breather cap (1, Figure 81). Run engine for ten minutes at low idle to purge air from circuit. Check level in hydraulic oil tank (See page 4-17). Add oil if necessary. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-48...
Page 255 (1, Figure 84). NOTE: Used filter should always be disposed of according to local regulations. DS1703795 After changing pilot filter, vent air from pump and check Figure 84 level of hydraulic oil tank. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-49...
Page 256 (3) until fluid level is at port (1). Install level plug (1) and fill plug (3). NOTE: See "Fluid Capacities" on page 4-9 for capacity. Repeat this procedure on the other travel reduction device. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-50...
Page 257 After draining oil, remove hose and install cap. FG009556 Figure 87 Remove breather/fill cap (2, Figure 86) and add oil to "H" mark on dipstick (1). FG000419 Figure 88 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-51...
Page 258 The outer filter is located behind the operator’s seat. Open the cover by the removing knobs (Figure 90). FG014510 Figure 90 Remove filter (Figure 91) and replace with new one. Reassemble in reverse order. FG014511 Figure 91 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-52...
Page 259 Open the cover by removing knobs (1, Figure 60). FG015051 Remove screw (2, Figure 61) and filter (3, Figure 61) from Figure 92 the cover. Replace it by new one. Reassemble filter in reverse order. FG015052 Figure 93 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-53...
Page 260 Appearance of the Sight Glass Solutions Refrigerant Almost clear. Normal Any bubbles disappear. Charge or withdraw the system with the correct amount of HFC-134a High No bubbles are seen. refrigerant. A flow of bubbles is visible. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-54...
Page 261 CCW direction to loosen. FG015684 Figure 96 After disengaging it as shown on (Figure 97), carefully lay it on floor. FG015685 Figure 97 After disengaging, disengage rubber as shown on (Figure 98). FG015686 Figure 98 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-55...
Page 262 After exchanging to a new filter, you may now assemble back in reverse order. FG015688 Figure 100 Check and Adjust Engine ** Contact your nearest DOOSAN dealer. Engine dealer for checking and adjusting the following items: • Engine Compression Pressure. •...
Page 263: 2,000 Hour / Yearly Service
Install new inner filter. Do not clean and reuse inner element. Install new outer filter. Install air cleaner cover and evacuator valve. NOTE: Make sure that all gaskets and cover are FG003466 properly installed and seated. Figure 103 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-57...
Page 264 Slowly open the radiator cap to allow any pressure to escape. Place a container under the radiator and open the drain valve (2, Figure 105). NOTE: Dispose of drained fluids in compliance with all applicable environmental laws and regulations. FG001407 Figure 105 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-58...
Page 265 When refill or replace coolant, select "heater-full hot" mode to fully open the water valve. Coolant will then flow into the heater's core to prevent air from being trapped in it. EX1502246 Figure 107 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-59...
Page 266 Hydraulic oil change interval is 2,000 hours, only when DOOSAN Genuine Oil is used. If another brand of oil is used, guaranteed change interval is 1,000 hours. NOTE: Based on the type of excavating being completed,...
Page 267 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 3-37. 13. Check level of hydraulic oil tank. (See page 4-17) ARO1720L Figure 112 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-61...
Page 268 Check Alternator and Starter** **These checks need to be completed by an authorized DOOSAN dealer. Check All Rubber Antivibration Shock Mounts Perform and Record Results of Cycle Time Tests Inspect Machine to Check for Cracked or Broken Welds or other Structural...
Page 269: Hour / Biennial Service
Hydraulic 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 DX140R/DX140LCR 4-63...
Page 270: 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 271: Air-Conditioning System
Check the hose for cracking and damage. CAUTION AVOID INJURY When a leak occurs, dirt will accumulate in the area where the leak is. Consult a DOOSAN distributor or sales agency. Check Condenser Inspect the condenser for dust and debris. Clean if necessary. NOTE: See "Clean Radiator, Oil Cooler, Intercooler, Fuel...
Page 272: Bucket
Shut the engine off 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. HAOC680L...
Page 273 (4) and boss have been cleaned. Realign arm or link with bucket pin hole and insert bucket pin (3, Figure 116). ARO1391L Figure 117 Roll new O-ring (1, Figure 118) into O-ring groove. ARO1392L Figure 118 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-67...
Page 274: Electrical System
ELECTRICAL SYSTEM NOTE: Never disassemble electrical or electronic parts. Consult with a DOOSAN distributor or sales agency 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 275 When the charging indicator indicates transparency state, replace the battery. The batteries should always be replaced in Figure 120 pairs. Using an old battery with a new one will shorten the life span of the new battery. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-69...
Page 276 Change a fuse if the element separates. If the element of a new FG014508 fuse separates, check the circuit and repair the circuit. Figure 122 CAUTION AVOID INJURY Always replace fuses with the same type and capacity fuse that was removed. Otherwise, electrical damage could result. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-70...
Page 277 Room Light Spare Cabin Light (Optional) Air Conditioner, Heater Work Light Shear, Breaker (Optional) Fuel Heater Instrument Panel, Pressure Seat Heater (Optional) Sensor EPOS, Booster, Travel Headlight speed changer, Booster Fuel Pump (Optional), Wiper Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-71...
Page 278: 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 DX140R/DX140LCR 4-72...
Page 279 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 280 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 281: 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. If any pump parts or components become lost, damaged or inoperable, immediately replace it with a new ones. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-75...
Page 282 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 124 Reference Reference Description Description Number Number Body Strainer Cap Check Valve Inlet Hose Strainer Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-76...
Page 283 "I" (ON) position for two - three seconds to drain remaining fuel from hose to fuel tank. Install strainer cap (4, Figure 124) on inlet strainer (3) and return hose (5) to storage position. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-77...
Page 284: 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 285: Track Tension
"A" on below table) can cause excessive component wear. The recommended adjustment can also be too tight causing accelerated stress and wear if ground FG000162 conditions are wet, marshy or muddy. Figure 128 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-79...
Page 286 If there is not enough slack or clearance in the tracks and the adjustment is too tight, the idler wheel and adjusting cylinder can be retracted by bleeding off grease through hole in adjustment cylinder (2, Figure 129). FG019868 Figure 129 Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-80...
Page 287: 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 DX140R/DX140LCR 4-81...
Page 288 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 DX140R/DX140LCR 4-82...
Page 289: Long Term Storage
Add coolant as required. Hydraulic System Once a month, start the engine and follow the "Hydraulic Oil Warm-up" procedures listed in this manual. Inspection, Maintenance and Adjustment DX140R/DX140LCR 4-83...
Page 290: Maintenance In Special Conditions
Verify the condition of the batteries. In extremely cold weather remove the 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 DX140R/DX140LCR 4-84...
Page 291: Transportation
Attachment Removal DANGER AVOID DEATH DOOSAN warns any user, that removal of the counterweight from the machine, front attachment or any other part, may affect the stability of the machine. This could cause unexpected movement, resulting in death or serious injuries.
Page 292 90 ~ 110 blocking under the ramp to provide additional support. The ramp angle must be less than or not exceeding a 15° angle. Ramps steeper than this can cause a problem when loading or unloading. FG000325 Figure 2 Transportation DX140R/DX140LCR...
Page 293 Make sure to back the excavator onto the trailer so the counterweight end of the excavator is positioned on the ramp first. See Figure 6. FG000326 Figure 6 Transportation DX140R/DX140LCR...
Page 294 14. Refer to the Dimensions for Transportation table and drawing overall machine height width measurements. Make sure to position the excavator as shown. If not transported in this position, the height measurements may be different. FG000334 Figure 10 Transportation DX140R/DX140LCR...
Page 295 FG014870 Figure 11 Transportation DX140R/DX140LCR...
Page 296: Lifting Machine
Set the lifting angle (1, Figure 12) 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 DX140R/DX140LCR...
Page 297: Specification
12.5 metric tons 13.8 tons Gradeability 35° (70% slope) Ground Pressure 5.8 psi 0.41 kg/cm Ground Clearance 410 mm 16.1 in Track Shoe Width 600 mm 23.6 in Upper Roller Qty. 1 per side Bottom Roller Qty. 7 per side Specification DX140R/DX140LCR...
Page 298: Overall Dimensions
LC: 7,360 mm (24' 1") LC: 7,320 mm (24' 0") 1,480 mm (4' 10") DX140LCR: 3,035 mm (9' 11")/DX140R: 2,780 mm (9' 1") DX140LCR: 3,755 mm (12' 4")/DX140R: 3,500 mm (11' 5") 895 mm (2' 11") 2,580 mm (8' 5") 2,710 mm (8' 11")
Page 299 2.5 m (8' 2") Arm 8,060 mm (26' 5") 8,015 mm (26' 4") 1,480 mm (7' 2") DX140LCR: 3,035 mm (9' 11")/DX140R: 2,780 mm (9' 1") DX140LCR: 3,755 mm (12' 4")/DX140R: 3,500 mm (11' 5") 895 mm (2' 9") 2,580 mm (8' 5") 2,680 mm (8' 7")
Page 300: Working Range
WORKING RANGE One - Piece Boom 2,500 mm EX1500446 Figure 3 Specification DX140R/DX140LCR...
Page 301 Min. Digging Reach -35 m (-1' 11") 350 m (1' 2") 850 m (2' 9") Min. Swing Radius 1,885 m (6' 2") 1,995 m (6' 7") 2,290 m (7' 6") Bucket Angle 173 ° 173 ° 173 ° DX140R/DX140LCR Specification...
Page 302 Two - Piece Boom 2,500 mm DS1801619 Figure 4 Specification DX140R/DX140LCR...
Page 303 Min. Radius 2,500 mm Line 1,230 m (4' 0") 1,250 m (4' 1") Min. Digging Reach -250 m (-1' 2") -745 m (-3' 7") Min. Swing Radius 2,450 m (8' 0") 2,500 m (8' 2") 173 ° Bucket Angle 173 ° DX140R/DX140LCR Specification...
Page 304: 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 DX140R/DX140LCR...
Page 305 929 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 DX140R/DX140LCR...
Page 306 Specification DX140R/DX140LCR 6-10...
Page 307: Index
Description of Lubrication and Service Chart 2-17 Booster Button 2-22 Digital Clock Booster Cable 2-36 Display Selection 3-34 Breaker Operating Precautions 2-34 Display Selector Button 2-46 Breaker Selection 2-63 Door Side Latch 4-66 Bucket 2-34 Down Arrow Button 4-67 O-ring DX140R/DX140LCR Index...
Page 308 4-36, 4-48 Level Hydraulic Oil Return Filter 4-45 4-17 Main Fuel Filter Hydraulic Oil Tank 4-45 2-21 System Hydraulic Oil Temperature Gauge 4-75 4-18 Transfer Pump Leaks in the Hydraulic System 4-30 4-81 Tank Drain Valve Main System Pump Index DX140R/DX140LCR...
Page 309 Long Term Storage Parking Excavator Lubrication and filters Password 4-10 2-20 Lubrication and Service Chart Activated 2-41 Set Password 2-20 Password Activated 2-54 Pilot Cutoff Switch 4-65 Magnetic Clutch 4-36, 4-49 Pilot Filter 2-33 Main Menu 4-36 Pins and Bushings Index DX140R/DX140LCR...
Page 310 Seat Warmer Switch (Optional) Engine Speed Control Dial 2-34 2-36 Selection Button ESC Button 2-32 Selection of Flow Control Button 2-45, 2-46 2-18 Breaker Fuel Heater 2-46 2-35 Overload Alarm Home Button 2-45 2-16 Power Boost Selection Horn Button Index DX140R/DX140LCR...
Page 311 Control Lever Operation 2-65 Sun Visor 3-16 Instructions 2-14 Wiper Switch Panel 4-46, 4-50 Reduction Device 3-22 Work Levers (Joysticks) (ISO Pattern) 2-11 Speed Selector Switch 2-24 Work Light Indicator 2-17 Travel Lever Working Range 2-16 Travel/Swing Alarm Switch (Optional) Index DX140R/DX140LCR...
Page 312 Index DX140R/DX140LCR...
Page 314 If in an enclosed area, vent the exhaust to the outside. • Do not modify or tamper with the exhaust system. • Do not idle the engine except as necessary. For more information go to www.P65 warnings.ca.gov/diesel. Doosan Infracore North America 2905 Shawnee Industrial Way Suite 100 Suwanee, GA 30024...

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