KOMATSU GD610 GD620 GD660 GD670 SERIES MOTOR GRADER WORKSHOP SERVICE REPAIR MANUAL PDF

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ABOUT THIS MANUAL

This is a COMPLETE Service Shop Repair Manual for the KOMATSU GD610, GD620, GD660, GD670 SERIES MOTOR GRADER. This manual contains deep information about maintaining, assembly, disassembly and servicing your KOMATSU GD610, GD620, GD660, GD670 SERIES MOTOR GRADER.

MACHINE MODEL SERIAL NUMBER
GD621A-1 - 10001 and up
GD622A-1 - 20001 and up
GD623A-1 - 30001 and up
GD625A-1 - 50001 and up
GD672A-1 - 20001 and up
GD611A-1 - 10001 and up
GD613A-1 - 30001 and up
GD661A-1 - 10001 and up
GD663A-1 - 30001 and up
GD621R-1 - 10001 and up
GD623R-1 - 30001 and up
GD611R-1 - 10001 and up
GD613R-1 - 30001 and up
GD615A-1 - 50001 and up
GD625A-1C - 60001 and up
GD625A-1A - 60001 and up
GD625A-1B - 65001 and up

GD621A, GD611A, GD661A, GD621R, GD623R, GD611R, GD613R-1 mount the S6D105-1 engine.
GD622A, GD6...

What's Covered

Engine disassembly & rebuild

Torque specifications

Wiring & electrical system

Fuel & carburetor/fuel injection

Brakes & suspension setup

Transmission & clutch

Fault codes & diagnostics

Maintenance schedules

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