Komatsu PC95-1 Excavator Repair Service Manual

Table of Contents

Komatsu PC95-1 Manual

Main sections and selected subjects identified in the source documentation:

• Manuals: Shop Manual
• 10 Structure, function
• 20 Testing and Adjusting
• 40 Disassembly and assembly
• GENERAL
• STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• TESTING, ADJUSTING AND TROUBLESHOOTING
• DISASSEMBLY AND ASSEMBLY KOMATSU Excavator
• CHECKING THE INITIAL HORSEPOWER CONTROL POINTFOR THE 3-CIRCUIT CONTROL VALVE
• Disconnect the hose (1) from the port X2 and cap it.
• Connect the two pressure gauges E1 (600 bar) to the adapters M1 and M2 of the control valve (1st and 2nd section).
• Connect the pressure gauge E3 (250 bar) to the port G of the pump.
• Start the engine and bring it up to high idling speed.
• Raise the boom completely and close the arm completely.
• H The pumps should come up to pressure slowly and simultaneously.
• Check at which point the pressure gauge E3 (250 bar) starts the pressure-indicating movement (intervention point).
• H If the intervention is early or delayed, adjust it with the cartridge (1) after having loosened the nut (2).
• . To BRING FORWARD the intervention point, turn in a CLOCKWISE direction.
• . To DELAY the intervention point, turn in an COUNTERCLOCKWISE direction.
• H Intervention point: 110w5 bar.
• Stop the engine, release any residual pressures, and re-assemble the hydraulic circuit.