Overview
The John Deere 1270 harvester repair service manual provides a technical reference for the covered equipment. Its purpose is to help locate information relevant to inspection, troubleshooting, servicing and repair, as applicable to the supplied publication.
The supplied contents outline identifies 0000 General, Service Tools, 1000 Power Unit and 1100 Engine Mounting – Removal / Installation. The table below follows the provided section names and selected topics; consult the manual for the exact procedures and specifications.
Important Information: Confirm the applicable serial-number or production range in the supplied documentation before selecting a procedure.
Table of Contents
John Deere 1270 Manual
Main sections and selected subjects identified in the source documentation:
- 0000 General
- Service Tools
- 1000 Power Unit
- 1100 Engine Mounting – Removal / Installation
- 1200 Fuel System
- 1300 Drive Coupling
- 1400 Exhaust System
- 1500 Intake System
- 1600 Cooling System
- Cummins Shop Manual 1991 and 1994 Certification Levels – See Bulletin 3666017-01
- Cummins Troubleshooting and Repair Manual 1991 and 1994 Certification Levels – See Bulletin 3666003-01
- 2000 Hydraulic System
- 2100 Hydraulic Tank and Filters
- 2200 Working Hydraulics
- 2210 Working Pump – Rexroth A11VO Repair Instructions
- 2230 How to Check and Adjust Pressures
- 2240 Auxiliary Valve
- 2300 Hydrostatic Drive System
- 2310 How to Check and Adjust the Hydraulic System
- Drive Pump – Rexroth A4VG Repair Instructions
- Drive Motor – Rexroth A6VM Repair Instructions
- 2400 Valves
- 2410 Crane Control Valve
- VOAC K170LS Directional control valve
- 2600 Brake Hydraulics
- Appendix 1 – Hydraulic Component Symbols
- Appendix 2 – Hydraulic Schematics
- 3000 Electrical
- 3050 Main Electrical System
- 3100 Wiring Diagrams
- 3200 Control System TMC
- 3300 Measuring System TJ3000
Serial-Number Applicability
The covered production ranges or serial groups may affect the applicable procedures. Check the identification details on the machine against the source documentation.










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