Complete workshop & service manual with electrical wiring diagrams for Doosan DX140LC Crawler Excavator. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Doosan DX140LC Crawler Excavator service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

“K1034080E.pdf”
Doosan DX140LC Crawler Excavator Shop Manual
K1034080E; Serial Number 5001 and Up; 776 pages

TABLE OF CONTENTS
Safety
Track Excavator Safety........... SP000014
Specifications
Specification for DX140LC...... SP001313
General Maintenance
General Maintenance Procedures............ SP000016
Standard Torques....... SP000813
Upper Structure
Cabin ............ SP000943
Counterweight............. SP000940
Fuel Tank.................... SP001320
Fuel Transfer Pump...... SP000021
Swing Bearing............. SP000022
Swing Reduction Gear............ SP000921
Lower Structure and Chassis
Track Assembly .......... SP001321
Engine and Drive Train
Drive Coupling (Main Pump)..................... SP001326
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment ............... SP001327
Accumulator................ SP000028
Center Joint (Swivel)............... SP000029
Cylinders..................... SP000030
Swing Motor................ SP000985
Travel Moter................ SP001346
Main Pump.................. SP001329
Main Control Valve ....... SP001029
Remote Control Valve (Work Lever / Joystick) ....... SP000069
Travel Control Valve (with Damper).......... SP000070
Solenoid Valve Assembly ....... SP000445
Breaker EPPR Valve (Opt) ....................... SP000192
Hydraulic Schematic (DX140LC).............. SP001330
Electrical System
Electrical System........ SP001038
Electrical Schematic (DX140LC) .............. SP001357
Attachments
Boom and Arm............ SP001331
Bucket....... SP000939
…

EXCERPT:
"TROUBLESHOOTING, TESTING AND ADJUSTMENT"
"Inspection"
"The center joint should be checked for evidence of external oil leakage every 2,000 operating hours. Leaking or defective O-rings are an indication that dirt and other contaminants could be getting inside the assembly, which will promote accelerated, abnormal wear and may cause early failure of the assembly."
"If internal seals or other sliding surface components are worn and there is internal fluid leakage, complete overhaul and repair or replacement of the center joint may be required."
"Testing"
"To check pressure through the center joint, make up a test kit from the following equipment list:"
"• 700 bar (10,000 psi) pressure gauge."
"• Adapters, connectors, piping and flange block-off plates conforming to those used in high-pressure piping connections of the excavator."
"• A high-pressure relief valve with a setting pressure 1.5 times maximum system pressure."
"• A stop valve."
"• A manually operated, in-line changeover valve. Install the changeover valve upstream from one of the stem"
"high-pressure ports. Connect the pressure gauge downstream from one of the body ports. Install the stop valve between the changeover valve and the stem of the center joint. Other components should be installed according to the layout in the block diagram. The test kit is used to pressurize the center swivel above normal working pressure and lock in the higher pressure (as the stop valve is closed manually) for a leak down test."