1983–1989 Ford TW-5 / TW-15 / TW-25 / TW-35 Tractor Shop Manual (P/N 0872883825)

The 160-page PDF covers Ford TW-5, TW-15, TW-25, and TW-35 tractors, with separate service information for two-wheel-drive and front-wheel-drive configurations. Its paragraph-based procedures go beyond routine maintenance into tractor splitting, component overhaul, hydraulic testing, drivetrain adjustment, and electronic instrument diagnosis. Because the work assumes pressure gauges, dial indicators, presses, splitting stands, lifting equipment, and model-specific service tools, this shop manual is suited to experienced tractor mechanics and well-equipped owners already familiar with major mechanical repair.

• Front axle and FWD service: Covers the adjustable two-wheel-drive axle as well as APL-345, APL-3054, APL-355, and APL-365 front drive axles, including axle removal, steering knuckles, planetary hubs, differentials, bevel-gear setup, and transfer-case overhaul.

• Engine, fuel, and air systems: Includes engine removal, cylinder-head and valve service, timing-gear work, piston and bearing inspection, lubrication-system repair, injection-pump timing, injector testing, turbocharger overhaul, and TW-35 intercooler service.

• Clutch, transmission, and Dual Power: Details tractor splitting, clutch removal and overhaul, transmission removal and internal repair, shift-linkage adjustment, lubrication-pressure testing, and Dual Power pressure testing, removal, clutch-pack overhaul, and planetary end-play adjustment.

• Rear drivetrain, brakes, and PTO: Addresses differential and bevel-pinion setup, rear axle and planetary final-drive overhaul, wet-disc brake service, hydraulic brake bleeding, PTO troubleshooting and pressure testing, reduction gears, output shafts, and clutch/control-valve repair.

• Hydraulics and steering: Provides hydraulic-lift troubleshooting, pressure and pump-flow tests, main and auxiliary pump repair, lift-cover and cylinder overhaul, draft and position-control adjustment, remote-valve service, priority-valve repair, and hydrostatic steering diagnosis.

• Electrical and instrument systems: Covers alternator, regulator, starting motor, and safety-start switch testing, plus electronic instrument-panel fault messages, connector-pin checks, sender testing, program-switch setup, and ground-speed calibration. Electrical coverage is component-level and does not include a complete tractor wiring-diagram set.

Configuration and Production Differences

Dual Power is standard on the TW-35 and optional on the other covered models. The manual treats its planetary assembly, control valve, hydraulic supply, and direct-drive and underdrive clutch packs as repairable systems rather than describing operation alone.

Front-wheel-drive coverage is divided by axle build. Early TW-5, TW-15, and TW-25 tractors use the APL-345; early TW-35 tractors use the APL-3054. Late TW-5 and TW-15 production changes to the APL-355, while late TW-25 and TW-35 tractors use the APL-365. The early TW-35 transfer case also receives its own removal, sectional, and overhaul information.

Hydraulic sections are split between tractors built before April 1985 and those built April 1985 and later. The later system adds an engine-driven auxiliary pump and priority-valve arrangement and changes the relationship between lift and remote-valve flow. Separate coverage also distinguishes the early TW-35 hydraulic pump used before March 1984, early and late safety cabs divided at November 1985, and the later two-wheel-drive steering cylinder introduced for 1987-and-after production. Cab wiring information identifies an additional harness difference between A/B- and C-prefixed serial numbers.

Specifications, Tools, and Visual References

Condensed service data and component sections supply torque specifications, fluid capacities, pressure-test data, electrical test values, wear limits, clearances, shim selection information, and adjustment specifications in U.S. customary and metric units. Named tooling includes the No. 201387 splitting kit, No. 2142 clutch fixture, No. 7446 brake-adjusting tool, No. 1302 lift-cover fixture, and axle-specific pinion and bearing-adjustment tools.

Numbered illustrations run through Fig. 357. Particularly useful references include the APL-345/APL-355 axle exploded view, the early TW-35 transfer-case sectional and exploded views, the valve-clearance sequence chart, the Dual Power exploded assembly, paired pre-/post-April 1985 hydraulic schematics, and electronic instrument connector and sender-location drawings.

The axle sections specify that bevel ring and pinion gears are matched sets and that pinion preload spacers must be renewed after removal; mixing or reusing these parts can leave preload or gear contact incorrect and damage bearings or gear teeth. The Dual Power cover must also be installed in its marked orientation so the drilled lubrication passage aligns correctly—if it does not seat freely, assembly is incorrect.

Tractor splitting, axle and cab removal, compressed clutch springs, high-pressure injector testing, and hydraulic pressure checks require proper stands, lifting fixtures, guarding, and protective equipment. Follow the manual’s assembly-specific cautions before beginning repair work.