Timberjack 1270C Manual Table of Content

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
4000 Power Train
4100 Transfer Case
4200 Prop Shafts
4300 Axles / Bogies
NAF Service Manual and Repair Instruction LOK87/1; Transfer case
NAF Service Manual and Repair Instruction LOK 97; Front Axle
NAF Service Manual and Repair Instruction LOK 98; Rear Axle
5000 Cabin
5100 Controls And Lights
5200 A/C And Heater System
5250 Inspecting The A/C System
6000 Frames / Covers
6100 Front Frame
6200 Rear Frame
6300 Middle Joint
6320 Frame Brake
7000 Crane
7100 Crane
7100-1 A General Description of the Crane
7100-2 Technical Specifications
Appendix 1: Special Tools for the Crane
7150 Crane Cylinders
7150-1 Description and Operation
7150-2 Slewing Cylinders Servicing
7150-4 Main Boom Cylinder Removal & Installation
7150-6 Main Boom Cylinder Servicing
7150-8 Jib Boom Cylinder Removal & Install
7150-12 Jib Boom Cylinder Servicing
7150-14 Extension Boom Cylinder Removal & Install
7150-17 Extension Boom Cylinder Servicing
7200 Crane Maintenance
Indexator Rotators – Disassembly and Assembly Instructions
9000 Optional Equipments
Eberspächer Troubleshooting and Repair Manual

To assist the operator in becoming familiar with the many features of this machine, and thereby become proficient in the operation and periodic maintenance procedures, this manual is provided with detailed operating and service instructions as well as safety information and equipment data.Throughout this manual, references are made to the front, rear, left, and right side of the machine. Consider the right side, left side, front, and rear, of the Forwarder from a seated position in the operator’s seat with the engine being at the front.
Where applicable throughout the text, “Safety Alert” symbols have been used to indicate important safety measures. Read carefully, understand, and follow these instructions to prevent hazardous situations that could lead to risk of personal injury.The instructions and procedures in this manual cover Forwarders with the most commonly used options; therefore pictorial presentation in some areas may vary slightly from the actual machine. This variation, however, does not have any impact on the accuracy of the written information. The information contained in this manual is current at the time of publication; however, continuing product improvement may result in changes to the machine which are not covered. Should information regarding such changes or further information on the machine be required, please contact your Timberjack dealer .