This technical manual is for John Deere 640.
Publication reference: TM1124.
What’s Covered Inside
- GENERAL INFORMATION
- WHEELS
- AXLES AND SUSPENSION SYSTEMS
- TRANSMISSION
- ENGINES
- ENGINE AUXILIARY SYSTEMS
- STEERING SYSTEM
- SERVICE BRAKES
Manual Contents and Coverage
Table of Contents (Technical Manual- TM1124)
I – GENERAL INFORMATION
1 – WHEELS
2 – AXLES AND SUSPENSION SYSTEMS
3 – TRANSMISSION
4 – ENGINES
5 – ENGINE AUXILIARY SYSTEMS
9 – STEERING SYSTEM
10 – SERVICE BRAKES
11 – EMERGENCY BRAKES
16 – ELECTRICAL SYSTEMS
17 – FRAME, CHASSIS OR SUPPORTING STRUCTURE
18 – OPERATOR’S STATION
19 – SHEET METAL
20 – SAFETY, CONVENIENCE AND MISCELLANEOUS
21 – HYDRAULIC SYSTEM
30 – WINCH (11-INCH DRUM)
30A – WINCH (EARLY UNITS 8-INCH DRUM)
30B – WINCH (LATER UNITS 8-INCH DRUM)
32 – BULLDOZERS
37 – ARCH OR BOOM
38 – GRAPPLE
38A – GRAPPLE
40 – PTO OR WINCH DRIVE
90 – SYSTEM TESTING
INDEX
This Manual give you both the general background and technical details of shop service. Fundamentals of Service Manuals cover basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic types of failures and their causes.
This Manual was planned and written in such a way it is made easy to repair your equipment. Refer to it when you need to know correct service procedures or specifications. Using the Service Manual as a guide will reduce error and costly delay. It will also assure you the best in finished service work.
I – GENERAL INFORMATION
1 – WHEELS
2 – AXLES AND SUSPENSION SYSTEMS
3 – TRANSMISSION
4 – ENGINES
5 – ENGINE AUXILIARY SYSTEMS
9 – STEERING SYSTEM
10 – SERVICE BRAKES
11 – EMERGENCY BRAKES
16 – ELECTRICAL SYSTEMS
17 – FRAME, CHASSIS OR SUPPORTING STRUCTURE
18 – OPERATOR’S STATION
19 – SHEET METAL
20 – SAFETY, CONVENIENCE AND MISCELLANEOUS
21 – HYDRAULIC SYSTEM
30 – WINCH (11-INCH DRUM)
30A – WINCH (EARLY UNITS 8-INCH DRUM)
30B – WINCH (LATER UNITS 8-INCH DRUM)
32 – BULLDOZERS
37 – ARCH OR BOOM
38 – GRAPPLE
38A – GRAPPLE
40 – PTO OR WINCH DRIVE
90 – SYSTEM TESTING
INDEX
This Manual give you both the general background and technical details of shop service. Fundamentals of Service Manuals cover basic theory of operation, fundamentals of troubleshooting, general maintenance, and basic types of failures and their causes.
This Manual was planned and written in such a way it is made easy to repair your equipment. Refer to it when you need to know correct service procedures or specifications. Using the Service Manual as a guide will reduce error and costly delay. It will also assure you the best in finished service work.
Use TM1124 with the model and version details above when selecting the manual for your John Deere equipment.











