Doosan DX138LC Shop Manual
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Doosan DX138LC Shop Manual

Doosan DX138LC Shop Manual

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DX138LC
DX140LC
Serial Number 6407 and Up
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Manual
K1027955B
Doosan Infracore

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Summary of Contents for Doosan DX138LC

  • Page 1 Doosan Infracore DX138LC DX140LC Serial Number 6407 and Up Shop Manual K1027955B...
  • Page 2 K1027955B Serial Number 6407 and Up DOOSAN reserves the right to improve our products in a continuing process to provide the best possible product to the market place. These improvements can be implemented at any time with no obligation to change materials on previously sold products.
  • Page 3 Find manuals at https://best-manuals.com...
  • Page 4 Table of Contents Safety Track Excavator Safety................. SP002984 Specifications Specification for DX138LC/DX140LC ........... SP002985 General Maintenance General Maintenance Instructions ............SP002454 Standard Torques ................. SP002404 Upper Structure Cabin (NON-ROPS)................SP002994 Cabin (ROPS)..................SP002995 Counterweight..................SP002996 Fuel Tank....................SP002997 Fuel Transfer Pump (Opt)..............SP000021 Swing Bearing..................
  • Page 5 Remote Control Valve (Work Lever / Joystick) ........SP001646 Travel Control Valve (with Damper)............SP002999 Solenoid Valve Assembly ..............SP000445 Breaker EPPR Valve (Option) .............. SP002458 Hydraulic Schematic (DX138LC/DX140LC) ......... SP002991 Electrical System Electrical System (NON-ROPS) ............SP002992 Electrical System (ROPS)..............SP002993 Electrical Schematic (NON-ROPS)............
  • Page 6 Safety Find manuals at https://best-manuals.com...
  • Page 7 Find manuals at https://best-manuals.com...
  • Page 8 SP002984 TRACK EXCAVATOR SAFETYSP002984 Track Excavator Safety Edition 1 Track Excavator Safety SP002984 Page 1 Find manuals at https://best-manuals.com...
  • Page 9 MEMO Track Excavator Safety SP002984 Page 2 Find manuals at https://best-manuals.com...

  • Page 10: Table Of Contents

    Table of Contents Track Excavator Safety Safety Instructions ..........5 Applicable Models ..........5 To the Operator of a DOOSAN Excavator.... 6 General Safety Essentials ........9 Location of Safety Labels ........10 Summary of Safety Precautions for Lifting in Digging Mode .............
  • Page 11 MEMO Track Excavator Safety SP002984 Page 4...

  • Page 12: Safety Instructions

    APPLICABLE MODELS The contents of this section apply to the following models and serial number ranges. MODEL SERIAL NUMBER RANGE DX138LC 6407 and Up DX140LC 5001 and Up Track Excavator Safety SP002984 Page 5...

  • Page 13: To The Operator Of A Doosan Excavator

    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 14 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 15 Safety precautions are described in SAFETY from page -10 on. DOOSAN cannot predict every circumstance that might involve a potential hazard in operation and maintenance. Therefore the safety messages in this manual and on the machine may not include all possible safety precautions.

  • Page 16: General Safety Essentials

    The excavator has been primarily designed for moving earth with a bucket. For use as a grapple or for other object handling, contact DOOSAN for proper installation and application. Lifting- work applications (unless restricted or prohibited by local regulations) are permitted in approved lift configuration, to rated capacity only, with no side-loading.

  • Page 17: Location Of Safety Labels

    LOCATION OF SAFETY LABELS Location of safety labels (decals) can vary from unit to unit. Refer to appropriate Operation and Maintenance Manual, and parts manual for your unit. Always replace damaged or faded decals. Track Excavator Safety SP002984 Page 10...

  • Page 18: Summary Of Safety Precautions For Lifting In Digging Mode

    If you need more information or have any questions or concerns about safe operating procedures or working the excavator correctly in a particular application or in the specific conditions your individual operating environment, please consult your local DOOSAN representative. Track Excavator Safety SP002984 Page 11...

  • Page 19: 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 the...
  • Page 20 Inside Operator's Cabin When entering the operator's cabin, always remove all mud and oil from the soles of your shoes. If you operate the travel pedal with mud or oil stuck to your shoes, your foot may slip and this can cause a serious accident.
  • Page 21 Breathing Masks, Ear Protection May Be Required Do not forget that some risks to your health may not be immediately apparent. Exhaust gases and noise pollution may not be visible, but these hazards can cause disabling or permanent injuries. NOTE: equivalent continuous A-weighted...
  • Page 22 Recommendations for Limiting Vibrations Select the right machine, equipment and attachments for a particular application. Replace any damaged seat by a genuine DOOSAN part. Keep the seat maintained and adjusted. • Adjust the seat and suspension for the weight and size of the operator.
  • Page 23 Mounting and Dismounting Before getting on or off the machine, if there is any oil, grease, or mud on the handrails, steps, or track shoes, wipe it off immediately. Always keep these parts clean. Repair any damage and tighten any loose bolts. Never jump on or off the machine.
  • Page 24 Precautions When Handling Fluids at High Temperature Immediately after operations are stopped, the coolant, engine oil, and hydraulic oil are at highest temperatures and the radiator and hydraulic tank are still under pressure. Attempting to remove cap, drain the oil or coolant, or replacing the filters may lead to serious burns.
  • Page 25 Injury from Work Equipment Do not enter or put your hand, arm or any other part of your body between movable parts, such as between the work equipment and cylinders, or between the machine and work equipment. If the control levers are operated, the clearance between the machine and the work equipment will change and this may lead to serious damage or personal injury.
  • Page 26 (single-acting) and two-way (double-acting) piping / valving / auxiliary control kits. Because DOOSAN cannot anticipate, identify or test all the attachments that owners may wish to install on their machines, please contact DOOSAN for authorization and approval of attachments, and their compatibility with optional kits.
  • Page 27 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 28 Emergency Exit The excavator is equipped with a glass breaking tool. It is behind the operator seat in the upper right corner of the cabin. This tool can be used in case of an emergency that requires breaking glass to exit from the operator's cabin. Grip the handle firmly and use the sharp point to break the glass.

  • Page 29: Before Starting Engine

    BEFORE STARTING ENGINE Work Site Precautions Before starting operations, thoroughly check the area for any unusual conditions that could be dangerous. Check the terrain and condition of the ground at the work site, and determine the best and safest method of operation. Make sure the ground surface is as hard and horizontal as possible before carrying out operations.
  • Page 30 Remember that soil after heavy rain, blasting or after earthquakes, is weakened. Newly laid earth and the soil near ditches is typically loose.. It can collapse under the weight of vibration of your machine and cause your machine to tip over. Install the head guard (FOPS) if working in areas where there is a danger of falling rocks.
  • Page 31 Check gauges and monitor displays for normal operation before starting the engine. Listen for unusual noises and remain alert for other potentially hazardous conditions at the start of the work cycle. Do not short-circuit the starting motor to start the engine. This is not only dangerous, but may also damage the machine.

  • Page 32: Machine Operation

    MACHINE OPERATION When Swinging or Changing Direction of Travel Before operating the machine or the work equipment, always observe the following precautions to prevent serious injury or death. • Start and operate the machine only while seated. • When changing travel direction from forward to reverse or from reverse to forward, reduce speed early and stop the machine before changing travel direction.
  • Page 33 Always keep to the permissible water depth. Permissible water depth is to the centerline of the upper track rollers. When traveling over bridges or structures on private land, check first that bridge or structure can withstand the weight of the machine.
  • Page 34 Prohibited Operations Do not dig the work face under an overhang. This can cause the overhang to collapse and fall on top of the machine. FG000368 Figure 20 Do not carry out deep digging under the front of the machine. The ground under the machine may collapse and cause the machine to fall.
  • Page 35 Precautions for Operation Be careful not to mistakenly travel too close to the edge of a cliff. Use the machine only for its main purpose. Using it for other purposes will cause failures. To ensure a good view, always do the following: •...
  • Page 36 Never modify the operator’s 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 operator may suffer serious injury or death.
  • Page 37 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 38 In a work site where falling rocks can cause damage and possibly crush personnel, or in a mining operation, be sure to install the falling object protective structure (2, Figure 27). Be sure to install any other additional protective structures required for work site conditions.
  • Page 39 Operations on Slopes When working on slopes. there is a danger that the machine may lose its balance and turn over, when swinging, or when work equipment is operated. Always carry out these operations carefully. Do not swing the work equipment from the uphill side to the downhill side when the bucket is loaded.

  • Page 40: Maintenance

    – with a warning notice. OSHA mandated control lever lockout can be made with any OSHA certified lockout device and a length of chain or cable to keep the safety lever in the fully lowered, nonactive position. Warning tags, for controls are available from DOOSAN distributors. 950205-01451 FG018690...
  • Page 41 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

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Dx140lc6407

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