Description

Doosan DX235LCR Excavator Service Manual

Doosan Excavator DX235LCR
Format: PDF
Language: English
Publication No: 950106-00081E
Serial Number: 5001 and Up

Doosan DX235LCR Excavator Service Manual – 784 Pages

How to Use The Doosan DX235LCR Excavator Guide Manual:

This manual provides information for servicing the DX235LCR Doosan 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 Doosan DX235LCR Excavator 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.

DOOSAN DX235LCR Instruction Table of Content:

Safety
Track Excavator Safety………………………………………………………………. SP002112
Specifications
Specification for DX235LCR……………………………………………………….. SP002113
General Maintenance
General Maintenance Procedures……………………………………………….. SP000016
Standard Torques……………………………………………………………………… SP000813
Upper Structure
Cabin ………………………………………………………………………………………. SP001938
Counterweight…………………………………………………………………………… SP002114
Fuel Tank…………………………………………………………………………………. SP002115
Fuel Transfer Pump…………………………………………………………………… SP000021
Swing Bearing…………………………………………………………………………… SP000022
Lower Structure and
Chassis
Track Assembly ………………………………………………………………………… SP002116
Engine and Drive Train
Drive Coupling (Main Pump)……………………………………………………….. SP002117
Hydraulics
Hydraulic System Troubleshooting, Testing and Adjustment …………… SP002118
Accumulator……………………………………………………………………………… SP000028
Center Joint (Swivel)………………………………………………………………….. SP001620
Cylinders………………………………………………………………………………….. SP002119

Swing Device……………………………………………………………………………. SP002120
Travel Motor……………………………………………………………………………… SP001621
Main Pump and PTO …………………………………………………………………. SP000988
Gear Pump ………………………………………………………………………………. SP000931
Main Control Valve ……………………………………………………………………. SP001024
Remote Control Valve (Work Lever / Joystick) ………………………………. SP000069
Travel Control Valve (with Damper)……………………………………………… SP002130
Solenoid Valve Assembly …………………………………………………………… SP001944
Breaker EPPR Valve (Opt) …………………………………………………………. SP000192
Hydraulic Schematic (DX235LCR) ………………………………………………. SP002121
Electrical System
Electrical System ………………………………………………………………………. SP002122
Electrical Schematic (DX235LCR)……………………………………………….. SP002123
Attachments
Boom and Arm………………………………………………………………………….. SP002124
Bucket……………………………………………………………………………………… SP000939

Doosan DX235LCR Manual Instruction Extract:

Arm Installation Procedure
Reattach the base of the arm cylinder to the mounting point on top of the boom.
Begin with the arm securely supported on blocking in front of the excavator. Pregrease the mounting pin for the rod end of the arm cylinder and push it through the ears on the end of the arm.
Attach a sling around that mounting pin and lift the arm with an assist crane until it is in position for the boom-arm pin connection to be made.
Relieve hydraulic pressure from all points of the system before any hydraulic lines are opened, then carefully assemble hydraulic connections to the arm cylinder.
Remove the sling from around the rod end arm cylinder pin, withdraw the pin and lift the body of the arm cylinder to re-pin the mounting connection.

Boom Installation Procedure
Before reassembling the attachment, make sure to inspect all bushings and pivot points of each section. To avoid damaging the seats, bushings should never be hammered or chiseled out of their seats.
Installation is otherwise a reversal of the removal procedures.

START-UP PROCEDURES
Once the boom has been serviced, it should be lubricated as outlined in the initial start-up procedures of the operation manual. Refer