Komatsu GD555-5, GD655-5, GD675-5 Grader Service Manual

Table of Contents

00 Index and foreword
01 Specification
10 Structure, function and maintenance standard
20 Standard value table
30 Testing and adjusting
40 Troubleshooting
50 Disassembly and assembly
60 Maintenance standard
80 Appendix

00. Index and foreword
This section contains table of contents, and safety and basic information. If any revision of the shop manual is made.

01. Specification
This section explains the specifications of the machine.

10. 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.

20. Standard value table
This section explains the standard values for new machine and judgement criteria for testing, adjusting, and troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting.

30. Testing and adjusting
This section explains measuring instruments and measuring methods for testing and adjusting, and method of adjusting each part. The standard values and judgment criteria for testing and adjusting are explained in Testing and adjusting.

40. Troubleshooting
This section explains how to find out failed parts and how to repair them. The troubleshooting is divided by failure modes. The “S mode” of the troubleshooting related to the engine may be also explained in the Chassis volume and Engine volume. In this case, see the Chassis volume.

50. Disassembly and assembly
This section explains the special tools and procedures for removing, installing, disassembling, and assembling each component, as well as precautions for them. In addition, tightening torque, and quantity and weight of coating material, oil, grease, and coolant necessary for the work are also explained.

60. Maintenance standard
This section gives maintenance standard values of each component. The maintenance standard sub-section explains the criteria and remedies for disassembly and service.

80. Appendix
The section explains the equipment which can not be included in the other sections. This section explains the structure, function, testing, adjusting, and troubleshooting fo the equipment.

90. Diagrams and drawings (chassis volume)/Repair and replacement of parts (engine volume)
Chassis volume
This section gives hydraulic circuit diagrams and electrical circuit diagrams.
Engine volume
This section explains the method of remanufacturing and repairing engine and replacing parts.

Motor Grader MODEL:
GD555 Serial 55001 and Up
GD655 Serial 55001 and Up
GD675 Serial 55001 and Up