Doosan DX700 Excavator Service Manual

Table of Contents

Safety
Track Excavator Safety………………………………………………………………. SP002135
Specifications
Specification for DX700LC………………………………………………………….. SP002136
General Maintenance
General Maintenance Procedures……………………………………………….. SP000016
Standard Torques……………………………………………………………………… SP000813
Upper Structure
Cabin ………………………………………………………………………………………. SP002148
Counterweight…………………………………………………………………………… SP002141
Fuel Tank…………………………………………………………………………………. SP002142
Fuel Transfer Pump (Opt)…………………………………………………………… SP002143
Swing Bearing…………………………………………………………………………… SP002165
Swing Reduction Gear……………………………………………………………….. SP002149
Lower Structure and Chassis
Track Assembly ………………………………………………………………………… SP002146
Engine and Drive Train
Engine……………………………………………………………………………………… SP002261
Drive Coupling (Main Pump)……………………………………………………….. SP000026
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment …………… SP002166
Accumulator……………………………………………………………………………… SP000028
Center Joint (Swivel)………………………………………………………………….. SP002167
Cylinders………………………………………………………………………………….. SP002137
Swing Motor……………………………………………………………………………… SP002168
Travel Motor……………………………………………………………………………… SP002145
Travel Reduction Gear……………………………………………………………….. SP002144
Main Pump……………………………………………………………………………….. SP002169
Regulator of Main Pump …………………………………………………………….. SP002181
Gear Pump for Pilot …………………………………………………………………… SP000033
Main Control Valve ……………………………………………………………………. SP002171
Remote Control Valve (Work Lever / Joystick) ………………………………. SP002174
Travel Control Valve (with Damper)……………………………………………… SP002172
Fan Motor (Fan Cooling Drive) ……………………………………………………. SP002175
Fan Pump (Fan Cooling Drive) ……………………………………………………. SP002176
Solenoid Valve Assembly …………………………………………………………… SP001622
Breaker EPPR Valve (Opt) …………………………………………………………. SP000192
Hydraulic Schematic (DX700LC)…………………………………………………. SP002147
Electrical System
Electrical System ………………………………………………………………………. SP002140
Electrical Schematic (DX700LC) …………………………………………………. SP002189
Attachments
Boom and Arm………………………………………………………………………….. SP002138
Bucket……………………………………………………………………………………… SP002139
Auto Grease System………………………………………………………………….. SP002216

Instructions

Disassembly
1. Remove the cover.
2. Extract the ball.
3. Remove the split pin.
NOTE: Be careful when extracting the split pin as the spring may also fly out and become lost.
4. Remove the spring seat.
5. Remove the spring.
6. Remove the oil relief valve.
7. Remove the oil pump drive gear.
• Use a gear remover to remove the drive gear.
8. Remove the oil pump cover.
9. Remove the driven gear.
10. Remove the drive gear shaft.
11. Pay special attention to cleaning the inside of the oil pump body.

How to Use The Guide Manual

This manual provides information for servicing the Excavator. All service procedures are broken down into detailed steps, listed in their recommended sequence. The manual uses both photographs and drawings to help locate and itemize components. The table of Contents on the preceding pages is your best tool for finding the service procedure you need. Be certain to observe all Safety information included in these pages.

A schematic of each of the major engine systems is provided at the beginning of the section of the manual devoted to troubleshooting and repairing that particular system.

Basic safety precautions are list in the Safety section of the Service Manual. Additional safety precautions are list in the Safety section of the owner/operation/maintenance publication. Specific safety warnings for all these publications are provided in the description of operations where hazards exist. WARNING labels have also been put on the product to provide instructions and to identify specific hazards.