1983-1990 Ford TW-5, TW-15, TW-25, TW-35 Tractor Service & Repair Manual (OEM)

• Covers 1983–1990 Ford TW-5, TW-15, TW-25, and TW-35 tractors, including both 2WD and front-wheel-drive variants
• Original OEM publication re-issue
• Contains 228 exploded-view diagrams, 3 wiring schematics, and 12 detailed specification tables
• Serves as the primary technical reference for the 6-cylinder direct injection diesel powertrain and dual power planetary systems used across the TW tractor series

Technical Coverage and Systems

This service manual documents the complete range of engine, transmission, and hydraulic systems for the Ford TW lineup. It breaks down everything from cooling system diagnostics and diesel fuel system maintenance to full front and rear axle overhaul procedures. You will also find the exact calibration data needed for the electronic instrument panels. Working on heavy agricultural equipment involves high-pressure hydraulics and substantial weight, so please ensure you follow the safety precautions and shop protocols outlined in the first few chapters before starting any teardown. All measurements are provided in both U.S. Customary and Metric units to match the tools in your shop.

Specification Highlights

The manual provides hard numbers for regular maintenance and deep engine rebuilds. Tune-up data lists the 1-5-3-6-2-4 firing order and specifies valve tappet gaps of 0.014–0.016 inches for the intake. Depending on the cab's heater setup, cooling system capacities run between 21 and 22.75 U.S. quarts. For electrical work, the guide details 12-volt alternator output tests and battery voltage diagnostics. Bottom-end engine specs document the main bearing running clearance at 0.0022–0.0045 inches. When buttoning up the engine, cylinder head bolt torque values hit 160 ft.-lbs. on the final pass.