Doosan DX80R Excavator Service Manual Workshop Guide

Manual Included: Service Repair Manual: 864 Pages Specifications: Brand: Doosan Daewoo Model: DX225LC Serial Number: 50001 and Up Type: Excavator Manuals: Service Repair Manual Publication Number: K1044971E Language: English Format: PDF Description Table of Contents :- Safety Track Excavator Safety ……………………………………………………………….. SP001631 Specifications Specification for DX80R ………………………………………………………………. SP001632 General Maintenance General Maintenance Procedures ………………………………………………… SP000016 Standard Torques ………………………………………………………………………. SP000813 Upper Structure Cabin ……………………………………………………………………………………….. SP001623 Swing Bearing …………………………………………………………………………… SP001633 Lower Structure and Chassis Track Assembly …………………………………………………………………………. SP001634 Engine and Drive Train Engine ………………………………………………………………………………………. SP001434 Drive Coupling (Main Pump) ……………………………………………………….. SP001635 Hydraulics Accumulator ……………………………………………………………………………… SP000028 Center Joint (Swivel) …………………………………………………………………… SP001628 Cylinders …………………………………………………………………………………… SP001636 Swing Motor ………………………………………………………………………………. SP001637 Travel Motor ………………………………………………………………………………. SP001638 Main Control Valve ……………………………………………………………………… SP001691 Main Pump ………………………………………………………………………………… SP001648 Remote Control Valve (Work Lever/ Joystick) ……………………………….. SP001649 Travel Control Valve ……………………………………………………………………. SP001650 Dozer Valve ………………………………………………………………………………. SP001651 Pedal Valve ……………………………………………………………………………….. SP001652 Hydraulic Schematic …………………………………………………………………. SP001694 Electrical System Electrical System ……………………………………………………………………….. SP001687 Electrical Schematic (DX60R/DX80R) …………………………………………… SP001688 Attachments Boom and Arm …………………………………………………………………………… SP001653 Bucket. ……………………………………………………………………………………… SP001643 Doosan DX80R Manual Instruction Extract: ELECTRICAL SUPPLY SYSTEM The electric power circuit supplies electric current to each electric component. It consists of battery, starter switch fusible link and fuse box. The negative terminal of battery is grounded to negative body. Even when starter switch (5) is in "OFF" position, electric current is supplied to following components through battery (1) -4 fusible link (3) – 4 fuse (6). 1 . Cabin light, fuel pump switch No.5 terminal of car stereo for backup and No.22 terminal of AC panel for backup. 2. "B" terminal of starter switch, No.1 terminal of hour meter. 3. No.34 terminal of ECU (Engine control unit) When the starter switch is in the ON and START positions, the current flows from the battery ( 1) -4 fusible link (3) -4 fuse box (6) -4 starter switch (5) "B" terminal / "BR" terminal -4 battery relay (2) -+ 'B' terminal which activates the coil of the battery relay and the electric supply system is energized. When the battery relay's contacts are connected, the current flows from the circuit breaker (4)-+ fuse box (6) and all electric devices can be operated. While the engine is not running, the battery supplies the electric power for all electric components. Once the engine is started, the power is supplied from the alternator (7). How to Use The Doosan DX80R Excavator Guide Manual: This manual provides information for servicing the DX80R 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 DX80R 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.