1983-1989 Ford TW-5 / TW-15 / TW-25 / TW-35 Tractor Shop Manual (OEM)

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Ford Models Covered & Key Technical Specifications

Models: Ford TW-5, Ford TW-15, Ford TW-25, Ford TW-35

Sub-models / Variants: 2WD, Front Wheel Drive, Dual Power

Model Years: 1983–1989

Technical Data:

  • Engine displacement: 401 cu. in. (6.6 L)

  • Engine configuration: 6-cylinder, direct injection diesel

  • Compression ratio: 16.3:1 (TW-5), 15.6:1 (TW-15, TW-25, TW-35)

  • Rated power (PTO): 105.7 hp (TW-5), 121.4 hp (TW-15), 140.7 hp (TW-25), 170.3 hp (TW-35)

  • Electrical system: 12-volt, negative ground, 128 Ampere Hour battery

  • Valve clearance (Cold) intake: 0.014-0.016 in. (0.36-0.41 mm)

  • Valve clearance (Cold) exhaust: 0.017-0.019 in. (0.43-0.48 mm)

Technical Specifications
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Document Number / Seller:
25352 / Richard Brown
File Size:
52.15 MB
File Type:
PDF
Language:
English
Pages:
160
Printable:
Yes
Category:
Tractor
Last updated / verified
Jun 2, 2026

Ford Manual Features & Content Preview

  • Covers 1983–1989 Ford TW-5, TW-15, TW-25, and TW-35 tractors, including both 2WD and front-wheel drive variants.
  • Original 160-page OEM factory manual (first edition, 1983).
  • Features 56 exploded-view diagrams and 35 specification tables covering core mechanical systems.

Mechanical and Hydraulic Systems Coverage

Whether you are tearing down a final drive or adjusting the hydrostatic power steering, this reference delivers the exact factory specifications required for a proper rebuild. It outlines the 6-cylinder direct-injection diesel engine in complete detail alongside comprehensive data for the eight-speed transmission and the optional Dual Power planetary gear assembly. The text thoroughly breaks down critical internal clearances, shim thickness requirements, and bearing preload procedures. Please note that working on heavy agricultural machinery involves high hydraulic pressures and heavy lifting; always review the included system depressurization charts and blocking procedures before initiating any teardown to prevent severe injury.

Engine and Component Specifications

Precision is non-negotiable when overhauling these tractors. The document provides multi-stage torque requirements for the engine assembly, including cylinder head bolt values topping out at 160 ft.-lbs. You get exact figures for essential adjustments: intake valve clearances are set at 0.014–0.016 in., and main bearing crankshaft end play must be kept within 0.004–0.008 in. It also lists complete fluid capacities, noting that a TW-35 equipped with a heater requires 24.25 U.S. Qts. of coolant. Because this complete specification guide is provided as an instant download, you can bypass shipping delays and immediately pull up the necessary lubrication capacities or structural breakdowns right at your workbench.

Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

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