Landini Rex 70GT 80GT 90F/GT 100F/GT Deltashift Training Manual – Transmission, Hydraulic & Electrical Service Guide

Description

Landini Rex Deltashift Training Manual – P/N 3665258 M1

This training manual covers the Landini Rex Deltashift series tractors, specifically the 70GT, 80GT, 90F/GT and 100F/GT models equipped with the Deltashift transmission module. Published under part number 3665258 M1, it contains the technical specifications, mechanical and hydraulic layouts, wiring diagrams, and instructions for operating and adjusting these tractors. It is compiled for assistance technicians who have already completed the relevant training courses, and it works alongside the theoretical and practical explanations given by instructors.

This is a comprehensive technical document spanning 491 pages. It does not cover every disassembly procedure in exhaustive detail, but it gives clear instructions for operating and adjusting the various components of the Deltashift system, backed by detailed diagrams and specifications that a working technician needs on the shop floor.

File Details

• Manual type: Training Manual
• Brand: Landini
• Models covered: Rex 70GT, 80GT, 90F/GT, 100F/GT Deltashift
• Language: English
• Page count: 491
• File format: PDF
• Document number: P/N 3665258 M1

Chapters Covered

• Chapter 1 – Introduction:
  • Reading the manual
  • Tractor identification (chassis and engine serial numbers)
  • Working in safety (accident prevention, danger decals, safe tractor use)
  • Conversion tables (length, area, volume, weight, pressure, torque, temperature)
  • Sealants (Loctite types and practical advice)
  • Driving torques
  • General assembly instructions (seals, O-rings, bearings)
• Chapter 2 – Transmission:
  • Deltashift module: introduction and purpose
  • Assembly drawing and main components
  • Control levers (gear, range, reverse shuttle, Park Lock)
  • Power train diagrams
  • Technical specifications, ground speed tables, driving torques and sealants
  • Disassembly, re-assembly and adjustments (engine-gearbox assembly, gearbox, 4WD housing, rear PTO)
  • Special tools
• Chapter 3 – Hydraulic Circuit:
  • General hydraulic circuit and main components
  • Low pressure circuit and cooling/lubricating circuit
  • Functional hydraulic layouts
  • Main components: hydraulic pump, power steering, hydraulic power packs, control cover, solenoid valve blocks, lubrication valve, rear PTO brake cock
  • Operating pressure inspections and special tools
• Chapter 4 – Electrical System:
  • Basic electrical concepts and symbols
  • Main wiring diagram (7 parts)
  • Technical specifications, relays and fuse holders
  • Wiring lines: battery-starter motor, front engine, dashboard, platform, rear
  • Main components: sensors, potentiometers, solenoid valves, switches, buttons, instrument, reverse shuttle lever, electronic control unit
• Special Tools: Part numbers and usage for transmission, PTO and hydraulic service

What This Manual Gives the Technician

The Landini Rex Deltashift transmission is a modular system built around a 4-speed synchronized gearbox with three ranges (slow, standard, fast), a synchronized reverse shuttle, and an electrohydraulically engaged creeper. That architecture produces 40 forward and 12 reverse speeds. This manual explains how the Deltashift module fits into that driveline, how the hydraulic clutch assemblies are supplied and controlled, and how the various options – underdrive, direct drive, overdrive and reverse – are engaged and disengaged.

On the hydraulic side, the manual breaks down the low pressure circuit, the cooling and lubrication circuit, and the hydraulic power packs that feed the Deltashift clutches, PTO brake, differential lock, 4WD disengagement and creeper. Pressure test procedures are included so you can verify calibration valve settings and diagnose faults rather than replacing parts on guesswork.

The electrical section covers the tractor’s wiring in detail, including connector locations, wire colours, and the functional wiring diagram broken into parts. Sensors, potentiometers, solenoid valves and the electronic control unit are identified and their adjustment values given where applicable.

Transmission service coverage includes removal and re-assembly of the Deltashift main shaft, transmission shaft, reverse shuttle shaft, control cover, 4WD housing and rear PTO clutch assembly. Inspection criteria for clutch discs, synchronizer rings, bearings and gears are provided, along with the special tools required for the job.

Why This Manual Matters for Landini Rex Deltashift Owners and Technicians

The Deltashift transmission is electronically controlled and hydraulically actuated. When something goes wrong – a clutch slipping, a range not engaging, the PTO brake not releasing, or a fault code appearing – the correct diagnosis depends on understanding how the system is supposed to behave and what the pressure and resistance values should be. This manual supplies those values: switch resistance readings, calibration pressures, torque settings, and adjustment clearances.

For the 70GT, 80GT, 90F/GT and 100F/GT models, that means you can approach a repair with the manufacturer’s own data rather than generic assumptions. The assembly drawings and exploded views help you identify part relationships and assembly order, while the torque and sealant tables help you reassemble components correctly.

Because this is a training manual, it assumes some prior familiarity with the tractor range. It is not a complete tear-down guide for every nut and bolt, but it is a strong companion for anyone doing transmission, hydraulic or electrical work on these Deltashift tractors, especially when combined with the practical instruction the original training course provided.

Get the Landini Rex Deltashift Training Manual

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This Landini Rex 70GT 80GT 90F/GT 100F/GT Deltashift training manual is delivered as an instant PDF download, so there is no shipping and no waiting for a physical book. You can open it on a laptop, tablet or phone in the workshop, search through the sections you need, and print the pages you want to keep by the machine.

If you maintain, repair or service a Rex Deltashift tractor, this manual gives you the specifications, diagrams and procedures to do the job with the right information in front of you.