Overview
The John Deere Timberjack 1070 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, 1000 Power Unit, 1100 Engine Mounting – Removal / Installation and 1200 Fuel System. 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 Timberjack 1070 Manual
Main sections and selected subjects identified in the source documentation:
- 0000 General
- 1000 Power Unit
- 1100 Engine Mounting – Removal / Installation
- 1200 Fuel System
- 1300 Drive Coupling
- 1400 Exhaust 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 3666087
- 2000 Hydraulic System
- 2100 Hydraulic Tank and Filters
- 2200 Working Hydraulics
- 2210 Working Pump – Rexroth A11VO Repair Instructions
- 2220 Hydrostatic Cooling
- 2240 Auxiliary valve
- 2300 Hydrostatic Drive System
- Drive Pump – Rexroth A4VG Repair Instructions
- Drive Motor – Rexroth A6VM Repair Instructions
- 2400 Valves
- 2410 Crane Control Valve
- VOAC L90LS 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
- 4000 Power Train
- 4100 Transfer Case
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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