Doosan DX170W Excavator Service Manual Workshop Guide

Manual Included: Service Manual: 1275 Pages Specifications: Brand: Doosan Excavator Model: DX170W Serial Number: 5001 and Up Type: Excavator Manuals: Service Manual Publication Number: K1042891E Language: English Format: PDF Description Table of Contents:- Safety Wheel Excavator Safety …………………………………………………………….. SP002195 Specifications Specification for DX170W…………………………………………………………… SP001864 General Maintenance General Maintenance Procedures……………………………………………….. SP000016 Standard Torques……………………………………………………………………… SP000813 Upper Structure Cabin (Non-ROPS) ……………………………………………………………………. SP002194 Cabin (ROPS)…………………………………………………………………………… SP002191 Counterweight…………………………………………………………………………… SP001866 Fuel Tank…………………………………………………………………………………. SP001867 Fuel Transfer Pump…………………………………………………………………… SP001868 Swing Bearing…………………………………………………………………………… SP001869 Swing Reduction Gear……………………………………………………………….. SP000921 Lower Structure and Chassis Ram Lock Valve………………………………………………………………………… SP000923 Selector Valve…………………………………………………………………………… SP000926 Double Pilot Check Valve …………………………………………………………… SP000927 Solenoid Valve………………………………………………………………………….. SP000928 Front Axle ………………………………………………………………………………… SP000929 Rear Axle …………………………………………………………………………………. SP000930 Engine and Drivetrain Transmission ……………………………………………………………………………. SP000962 Drive Coupling (Main Pump)……………………………………………………….. SP000963 Hydraulics Hydraulic System Troubleshooting, Testing and Adjustment …………… SP002229 Accumulator……………………………………………………………………………… SP000984 Center Joint (Swivel)………………………………………………………………….. SP000919 Cylinders………………………………………………………………………………….. SP001870 Main Control Valve ……………………………………………………………………. SP001990 Swing Motor……………………………………………………………………………… SP001871 Travel Motor……………………………………………………………………………… SP001872 Counterbalance Valve ……………………………………………………………….. SP000991 Main Pump & PTO…………………………………………………………………….. SP001873 Gear Pump ………………………………………………………………………………. SP000989 Service Brake Supply Valve ……………………………………………………….. SP000990 Dozer Control Valve…………………………………………………………………… SP000992 Steering Valve ………………………………………………………………………….. SP000993 Accelerator Pedal Valve (Hydraulic) …………………………………………….. SP001515 Remote Control Valve (Work Lever / Joystick) ………………………………. SP000189 Breaker EPPR Valve (Opt) …………………………………………………………. SP001874 Service Brake Pedal Valve …………………………………………………………. SP001006 Solenoid Valve Assembly …………………………………………………………… SP000997 Hydraulic Schematic (DX170W) ………………………………………………….. SP001875 Electrical System Electrical System (Non-ROPS)……………………………………………………. SP002212 Electrical System (ROPS)…………………………………………………………… SP002213 Electrical Schematic DX140W/160W/170W/190W/210W ……………….. SP002201 Attachments Boom and Arm………………………………………………………………………….. SP001876 Bucket……………………………………………………………………………………… SP001001 Doosan DX170W Manual Instruction Extract: Detailed Functions and Application of Brake Supply Valve Assembly Package 1. Prevents overload on brake pump saving energy. The pressure and oil flows discharged by the brake pump is supplied to the brake control device through valves. As the engine revolution (RPM) of the vehicle goes up, the revolution of the brake pump goes up increasing the amount of pressure and oil discharge. This valve package prevents energy loss by reducing loss in sources of power and fluid energy. In case the pressure of the brake control system exceeds the set pressure value of the Unloading Valve (QPABLAN: C6), the pilot spool in the Unloading Valve is operated to bypass oil flows on the drain line of the Logic Valve (LRDA-XDN:C1) to the "T" line. This releases the spool in the Logic Valve to bypass the pressure and oil discharged by the pump to the tank, allowing the pump to move under no load. If the pressure value of the brake control system goes below a set pressure value, the pilot spool of the Unloading Valve closes. This will make the drain line have oil flows and the spool in the Logic valve closes. Then, the pressure and oil flows discharged by the pump are supplied into the brake control device. Cut-out is when the pressure and oil flows discharged by the pump are bypassed, and cut-in is when they are supplied to the brake control device. How to Use The Doosan DX170W Excavator Guide Manual: This manual provides information for servicing the DX170W 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 DX170W 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.