2003 Landini Rex 60-65-70-80 V and 60-70-80-90-100 GE-F-L-GT Tractor Training Manual (P/N 3659961M2)

Landini's Rex Training Manual, P/N 3659961M2 (May 2003 edition), covers Rex 60–100 Orchard and Vineyard tractors in V, GE, F, L, and GT configurations, with 2WD and 4WD applications. Its thirteen chapters combine technical specifications, system layouts, and selected repair and adjustment procedures.

• Engine and clutch repair: Compression TDC identification, camshaft and injection-pump timing checks, clutch inspection, and release-lever adjustment.

• Transmission and axles: Synchronized gearbox inspection, reverse shuttle and optional gear arrangements, differential setup, 4WD axle adjustments, and Spring-on 4WD clutch operation.

• Hydraulic circuits: Orbitrol power-steering overhaul, PTO power clutch and differential lock pressure tests, trailer brake valve variants, and auxiliary control valve operation.

• Power lifts: Mechanical draft-control adjustments, hydraulic bench tests, electronic function tests, fault-code tables, and connector terminal maps.

• Electrical diagnosis: European and NAO wiring for cab and platform tractors, cable color charts, fuse and relay locations, and circuit fault isolation.

• Air conditioning: R134a system operation, refrigerant recovery and charging, vacuum leak checks, performance testing, and pressure-based troubleshooting.

Written for chief workshop foremen and participants in Landini training courses, this publication supplements practical and theoretical instruction. It does not provide detailed removal, installation, and adjustment procedures for every assembly.

Perkins Engine Timing and Clutch Repair

Engine data identify the Perkins 903-27, 903-27T, 1004-40, 1004-42, and turbocharged 1004.40T. The engine chapter concentrates on valve-clearance specifications, tightening data, and timing procedures; a full internal engine overhaul is outside its scope.

Lucas rotary injection-pump timing receives specific attention. The timing section warns that turning the pump shaft against its tightened locking bolt can damage the shaft.

Clutch inspection includes friction-surface regrinding limits and checks with 01 FRI REX, the clutch centering and lever-height tool.

Transmission, PTO, and Axle Adjustments

The Power train diagram distinguishes standard 12+12 gearing from optional 24+12 and 36+12 arrangements using creeper, underdrive, and overdrive combinations.

Rear differential repair covers pinion position, bearing preload, and ring-gear backlash. Front-axle material includes 2WD specifications and separate Orchard/Vineyard setup dimensions for 4WD assemblies.

PTO assembly illustrations distinguish the group labeled 60/65/70/75/80 from 90/100. Further coverage includes independent and ground-speed operation, speed-sensor checks, and interchangeable output-shaft ends for Rex 90 and 100.

Hydraulic Circuits and Power Lift Diagnosis

The Low pressure hydraulic circuit and High pressure hydraulic circuit diagrams trace component supply paths. Single and tandem pump layouts distinguish rear remote and lift supply from the additional front auxiliary circuit.

Valve coverage separates Italian and Export trailer brake arrangements. Remote-valve sections explain single- and double-acting, float, automatic-release, and hydraulic-motor versions, plus the electro-hydraulic flow selector.

Mechanical Power Lift material adds valve leakage checks using the CR 342 bench fixture, sensitivity adjustment, and draft/position linkage settings.

Electronic Power Lift rapid function tests help distinguish hydraulic trouble from electrical faults before repair. Flash-code tables, connector terminal matches, sensor checks, and the Hydraulic layout of the control valve unit support further fault isolation.

Observe the manual's accident-prevention guidance and safety decals when working with stored hydraulic pressure, supported implements, or rotating PTO components.

Wiring by Tractor Configuration

Harness drawings separate the battery/starter, front engine, dashboard, platform, and rear lines, with GE-specific dashboard and platform versions. The Multiple wiring diagram of dashboard line and connector views identify individual terminals from the cable-entry side.

Electrical troubleshooting addresses excessive resistance, open circuits, ground faults, and short circuits. European and NAO sections also document differences in lighting and relay arrangements.

Air Conditioning Service and Limits

The A/C chapter documents evacuation, dehydration, vacuum testing, and charging, with high- and low-pressure check-control tables. Its charging cautions explain how liquid refrigerant entering the compressor can damage it.

The dedicated A/C wiring-diagram page is a placeholder marked “Page in preparation”. Cab electrical circuits appear in the tractor wiring chapter.

Factory Specifications and Workshop Tools

Reference material includes tractor identification, chassis dimensions and weights, pre-delivery inspections, and routine maintenance. Fluid capacities, inspection tolerances, electrical test values, and component tightening data accompany the relevant assemblies.

Torque tables cover bolt grades 8.8, 10.9, and 12.9, with engine tightening values in Nm and kgfm. The Special Tools chapter supplies dimensioned drawings for clutch, differential, axle, and hydraulic test equipment.

PDF Search, Bookmarks, and Diagram Detail

Body text and legends are searchable, but many labels within wiring diagrams are not; small pin numbers and wire codes require zooming. Chapter and section bookmarks are included, although some electrical entries open an index instead of the named subsection. The printable 710-page PDF includes one cover, one overall contents page, one preface, 48 notes pages, 13 blank pages, the A/C diagram placeholder, and two closing pages.