Komatsu PC650-1 Excavator Service Manual

Table of Contents

General
Engine
Power Train
Undercarriage
Hydraulic System
Work Equipment
Electrical System
Others

GENERAL
This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts.

STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.

TESTING, ADJUSTING AND TROUBLESHOOTING
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating Problems to Causes are also mention in this section.

DISASSEMBLY AND ASSEMBLY KOMATSU Excavator PC650-1

This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.

When trouble-shooting, do not immediately take components to pieces. If components are removed and taken apart immediately after a defect has been noticed, and without any preliminary analysis, there is a risk of:
. dismantling parts that are only apparently involved in the fault;
. unnecessarily dismantling parts not required for achieving a repair;
. frequently making it impossible to find the original cause of the defect.