1998 FiatAllis FR140.2 Wheel Loader Operation, Maintenance & Service Manual Set (P/N FA 75314953 / 75314936)

Use the operation handbook for controls and scheduled care, and the service volume for workshop diagnosis and repair. Match each volume's serial range to the machine when selecting specifications.

Engine and transmission scope: The service volume covers removal from the loader and transmission reinstallation. It refers engine and transmission repair, troubleshooting, and testing to the separate Cummins C Series Shop Manual and Clark 28000 R & HR manual; neither is included.

Axle, Brake, and Loader Hydraulic Work

• Engine and transmission: Cummins 6 CT 8.3 engine removal, Clark transmission removal and installation, valve-lash adjustment, and routine filter service.

• Axles and final drives: Super Max Trac differential overhaul, planetary-drive disassembly, bearing adjustment, brake-disc replacement, and tire service.

• Brakes: Control-pressure checks, nitrogen-accumulator precharge testing, brake-pedal valve overhaul, parking-brake service, and system bleeding.

• Steering: Relief and cushion-valve tests, power-steering disassembly and phasing, cylinder overhaul, and optional emergency-steering pump service.

• Implement hydraulics: Vickers tandem vane-pump inspection, Rexroth control-valve service, lift/tilt-cylinder overhaul, and hydraulic troubleshooting.

• Bucket, boom, and frame: Cutting-edge repair, linkage removal, bushing inspection, articulation-pin work, and component-specific dimensional data.

• Electrical references: Wiring diagrams, component legends, wire color/gauge tables, and transmission control-circuit references.

The operating guidance is for qualified loader operators; the Service Manual reserves its maintenance and repair work for the manufacturer's service organization.

Operating Checks and Scheduled Care

The operator's handbook explains instrument-panel warnings, ROPS cab access, and cold-start operation. Its service and lubrication guide groups inspections, grease points, and filter changes by interval.

Fuel-system material covers filter replacement and bleeding for the Robert Bosch-equipped system, with injector testing assigned to a qualified, equipped shop. Transport guidance addresses tie-downs, frame lock-bar use, and roading precautions, alongside operating procedures for automatic bucket leveling and boom kick-out adjustment.

Axle Setup and Brake Diagnosis

Separate front and rear differential procedures cover pinion-depth shimming and gear-tooth contact patterns. Final-drive work includes brake-disc pack measurement and assembly, with spring-compression tool 75298993 and pinion-locking screw 75297565 identified.

The brake fault tables connect weak braking, excessive pedal travel, and accumulator charging problems with the relevant checks, helping narrow the fault before replacing parts. The brake-pump installation notes warn that an unprimed pump can seize at startup.

Steering, Hydraulics, and Linkage Repairs

Steering troubleshooting distinguishes supply faults, internal leakage, and incorrect power-steering phasing. Hydraulic charts address slow boom lift, weak bucket rollback, and load drift with the controls in neutral.

Pump procedures extend to cartridge inspection, vane matching, and bronze side-plate wear. The double-Z linkage and frame sections cover boom bushing replacement and frame separation; improper bushing pressing can deform the boom or damage its bushing seats.

Follow the manuals' precautions for raised booms, articulated frames, stored hydraulic pressure, and heavy component lifting.

Circuit Diagrams and Component Views

The electrical section identifies the powered wires and solenoids for each transmission gear. The hydraulic appendix includes an English glossary for Portuguese labels.

Illustrated references include the transmission section view, Super Max Trac bevel-gear/differential sections, brake hydraulic circuit, steering hydraulic diagram, and pressure-relief/check-valve sections.

Examples of Valve-Lash and Axle Backlash Data

For the Cummins 6 CT 8.3, the cold-engine valve-clearance specifications are 0.30 mm at the intake and 0.61 mm at the exhaust, alongside the valve-lash adjustment procedure.

Differential setup data distinguishes front-axle gear backlash of 0.20–0.28 mm from rear-axle backlash of 0.18–0.23 mm, measured with the pinion stationary. Contact-pattern illustrations accompany the adjustment coverage.

Bookmarked PDF and Diagram Legibility

Navigation and small labels: PDF text search is not available. Bookmarks cover both publications and their main sections; the two Main Menu links point to an external file that is not included. Wiring sheets require zooming, and some small wire codes and hydraulic annotations remain difficult to read when enlarged.

One printable, 253-page PDF contains both publications. The total includes one additional cover page and a repeated safety page within the service volume.