Engine, clutch, transmission, steering clutches and brakes, tracks, both hydraulic circuits, the power lift and electrical system run end to end through this 437-page Landini Service Training manual (OEM 3662270M2) for the Trekker crawler tractor, 70 through 100 plus CF and CFL versions. Wiring diagrams fill much of the electrical section, the biggest part of this Landini 90 service training PDF, and hydraulic schematics trace both circuits through to the operating pressure tests. Your pinion setup is covered too, down to the dummy bearings and taper gauge listed among the special tools. Confirm the radiator cap holds 0.7 bar on the 70, 80 and 90, then torque M10 x 1.25 fasteners to 50 Nm galvanized or 55 Nm burnished. A guessed shim costs you a second teardown. Bookmarks and a searchable text layer put you on power lift adjustments or a wiring diagram in a few clicks, so the crawler is back in the field before the weather turns.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| Introduction | 1-65 | Reading the Manual, Tractor Identification, Working in Safety |
| Engine | 66-87 | Technical Specifications, Driving Torque Values, Engine Tuning |
| Clutch | 88-103 | General Description, Technical Specifications, Inspection and Overhaul |
| Transmission | 104-141 | General Description, Technical Specifications, Main Components and Adjustments |
| Steering Clutch Assemblies & Brakes | 142-163 | General Description, Technical Specifications, Inspection and Adjustments |
| Tracks | 164-189 | General Description, Technical Specifications, Inspection for Wear and Adjustments |
| Low Pressure Hydraulic Circuit | 190-217 | General Description, Technical Specifications, Main Components |
| High Pressure Hydraulic Circuit | 218-253 | General Description, Main Components, Operating Pressure Tests |
| Mechanical Power Lift | 254-293 | General Description, Technical Specifications, Inspections, Adjustments and Troubleshooting |
| Electrical System | 294-419 | General Description, Wiring, Main Components |
| Special Tools | 420-437 | Main Clutch Lever Adjustment Tool, Tapered Pinion Measurement Support, Pinion-Crown Wheel Dummy Bearings, Steering Clutch Ring Nut Key, Ring Gear Shaft Taper Bearing Gauge |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Battery Voltage | 12 V | p. 313 |
| Battery Starting surge when cold at -18°C in 20 sec. | 470 A | p. 313 |
| M 8 x 1 torque | 25 Nm (galvanized), 27 Nm (burnished) | p. 59 |
| M 8 (1.25) torque | 23 Nm (galvanized), 25 Nm (burnished) | p. 59 |
| Radiator plug pressure | 0.7 bar | p. 71 |
| Intake filter filtration rating | 50 micron | p. 197 |
| Delivery filter filtration rating | 20 micron | p. 197 |
| Hydraulic test oil temperature | 30/40 °C | p. 251 |
| Maximum leak tolerated at 150 bar and 25-30°C | 3 cc in 3 minutes | p. 277 |
| Inductive sensor resistance | 450 ohm | p. 393 |
| Overheating warning light activation temperature | 105-110°C (221-230°F) | p. 410 |
| Steering Clutch Operating Pressure | max 30-32 bar | p. 16 |
