Doosan DX140LCR-3 Installationsanleitung

Original InstructionsCopyright DOOSAN 2012

Serial Number 1001 and Up

Shop Manual

DX140LCR-3 Excavator

950106-01021E

December 2012

DOOSAN and the DOOSAN logo are registered

trademarks of DOOSAN Corporation in the United

States and various other countries around the

world.

Table of Contents

Page I

1Table of Contents

Safety

Track Excavator Maintenance Safety ................................................... SP002907

Specifications

Specifications for DX140LCR-3............................................................ SP002908

General Maintenance

General Maintenance Instructions........................................................ SP002454

Standard Torques................................................................................. SP002404

Upper Structure

Cabin .................................................................................................... SP002909

Counterweight....................................................................................... SP002910

Fuel Tank.............................................................................................. SP002911

Fuel Transfer Pump (Option) ................................................................ SP002912

Swing Bearing....................................................................................... SP002913

Swing Reduction Gear.......................................................................... SP002526

Lower Structure and Chassis

Track Assembly .................................................................................... SP002914

Engine and Drivetrain

QSB4.5 Engine ..................................................................................... SP002915

Drive Coupling (Main Pump)................................................................. SP002931

Hydraulics

Hydraulic System Troubleshooting, Testing and Adjustment ............... SP002916

Accumulator.......................................................................................... SP002455

Center Joint (Swivel)............................................................................. SP002917

Table of Contents

Page II

Cylinders............................................................................................... SP002918

Swing Motor.......................................................................................... SP002919

Travel Device........................................................................................ SP002920

Main Pump............................................................................................ SP002930

Gear Pump ........................................................................................... SP002500

Main Control Valve ............................................................................... SP002528

Remote Control Valve (Work Lever / Joystick) ..................................... SP002921

Travel Control Valve (with Damper)...................................................... SP002922

Solenoid Valve Assembly ..................................................................... SP002923

Breaker EPPR Valve (Option) .............................................................. SP002458

Hydraulic Schematic (DX140LCR-3) .................................................... SP002924

Electrical System

Electrical System .................................................................................. SP002925

Electrical Schematic ............................................................................. SP002926

Attachments

Boom and Arm...................................................................................... SP002927

Bucket................................................................................................... SP002506

SP002907

Page 1

Track Excavator Maintenance Safety

SP002907

TRACK EXCAVATOR MAINTENANCE SAFETY

SP002907

Track Excavator

Maintenance

Safety

Edition 1

SP002907

Page 5

Track Excavator Maintenance Safety

SAFETY INSTRUCTIONS

APPLICABLE MODELS

The contents of this section apply to the following models and

serial number ranges.

WARNING

AVOID DEATH OR SERIOUS INJURY

Instructions are necessary before operating or servicing

machine. Read and understand the Operation &

Maintenance Manual and signs (decals) on machine. Follow

warnings and instructions in the manuals when making

repairs, adjustments or servicing. Check for correct

function after adjustments repairs or service. Untrained

operators and failure to follow instructions can cause death

or serious injury.

MODEL SERIAL NUMBER RANGE

DX140LCR-3 1001 and Up

SP002907Track Excavator Maintenance Safety

Page 6

SAFETY MESSAGES

Safety messages and safety decals included in this manual and

on the machine provide instructions how to operate, service and

maintain the machine. Safety messages and safety decals

indicate potential hazards and describe safety precautions

required to avoid hazards. Operator and maintenance personnel

should read and understand these safety messages and decals

before beginning operation or maintenance.

Signal Words

The signal words "DANGER", "WARNING", "CAUTION" are

used throughout safety messages and safety decals in this

manual or on the machine. They indicate an existence of, and

the relative seriousness of, a hazard. All three indicate that a

safety risk is involved. Observe the precautions indicated

whenever a Safety Alert Symbol is present, no matter which

signal word appears next to it.

SAFETY ALERT SYMBOL

Be Prepared - Get to Know All Operating and Safety

Instructions.

This is a Safety Alert Symbol. Wherever it appears in this

manual or on safety decals on the machine, you must be

alert to the potential for personal injury or accidents.

Always observe safety precautions and follow

recommended procedures.

DANGER

DANGER - This signal word is used on safety messages and

safety labels and indicates an imminently hazardous situation

which, if not avoided, will result in death or serious injury.

WARNING

WARNING - This signal word is used on safety messages and

safety labels and indicates a potentially hazardous situation

which, if not avoided, could result in death or serious injury.

SP002907

Page 7

Track Excavator Maintenance Safety

Other Signal Words

In addition to safety signal words, the following signal words are

used to indicate proper and effective use of machine.

The word "NOTE" identifies information for effective use.

SAFETY DECALS

Location of safety labels (decals) can vary from unit to unit.

Refer to appropriate Operation & Maintenance Manual, and

parts manual for your unit.

Always replace damaged or faded decals.

CAUTION

CAUTION - This signal word is used on safety messages

and safety labels and indicates a potentially hazardous

situation which, if not avoided, could result in minor or

moderate injury.

IMPORTANT

This signal word identifies procedures which must be

followed to avoid damage to machine.

SP002907Track Excavator Maintenance Safety

Page 8

GENERAL

Safe Operation is Operator's

Responsibility

Only trained and authorized personnel should operate and

maintain the machine.

Follow all safety rules, regulations and instructions when

operating or performing maintenance on machine.

• Do not operate machine if you are under the influence of

drugs or alcohol. An operator who is taking prescription

drugs must get medical advice to determine if he or she

can safely operate a machine.

• When working with other personnel on a work site, be sure

that all personnel know nature of work and understand all

hand signals that are to be used.

• Be sure that all guards and shields are installed in their

proper location. Have guards and shields repaired or

replaced immediately if damaged.

• Be sure that you understand the use and maintenance of

all safety features such as safety lock lever and seat belt.

Use them properly.

• Never remove, modify or disable any safety features.

Always keep them in good operating condition.

• Always check for and know the location of underground

and overhead utility lines before excavating.

• Failure to use and maintain safety features according to

instructions in this manual, Safety Manual and Shop

Manual can result in death or serious injury.

Know Your Machine

Know how to operate your machine. Know the purpose of all

controls, gauges, signals, indicators and monitor displays. Know

the rated load capacity, speed range, braking and steering

characteristics, turning radius and operating clearances. Keep in

mind that rain, snow, ice, loose gravel, soft ground, slopes etc.,

can change operating capabilities of your machine.

SP002526

Page 1

Swing Reduction Gear

SP002526

SWING REDUCTION GEARSP002526

Swing

Reduction Gear

Edition 2

SP002526

Page 5

Swing Reduction Gear

SAFETY INSTRUCTIONS

APPLICABLE MODELS

The contents of this section apply to the following models and

serial number ranges.

WARNING

AVOID DEATH OR SERIOUS INJURY

Instructions are necessary before operating or servicing

machine. Read and understand the Operation &

Maintenance Manual and signs (decals) on machine. Follow

warnings and instructions in the manuals when making

repairs, adjustments or servicing. Check for correct

function after adjustments repairs or service. Untrained

operators and failure to follow instructions can cause death

or serious injury.

MODEL SERIAL NUMBER RANGE

DX140LC-3 1001 and Up, 50001 and Up

DX140LCR-3 1001 and Up

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