Massey-Ferguson MF255 MF265 MF270 MF275 MF290 Tractor 1980 Service Manual (P/N C4256-90954, 1980)

• Official 95-page OEM manufacturer publication (Part Number C4256-90954, 1980 edition)
• Covers 1980 Massey-Ferguson MF255, MF265, MF270, MF275, and MF290 wheel-type tractors, documenting Perkins gasoline and diesel engine variants
• Contains 47 exploded-view diagrams, 3 wiring schematic plates, and 8 comprehensive condensed service data tables
• Provides the factory-authorized reference for system clearances, torque settings, and disassembly sequences used during the initial production era

Systems and Component Coverage

This publication breaks down the major tractor systems by component group. You get detailed service data followed by teardown and reinstallation references for the engine assembly, cooling system, transmission, and final drive. It also details the front axle, hydrostatic and power steering configurations, along with the hydraulic lift and PTO systems. Always review the included factory safety notices before beginning any heavy machinery maintenance or fluid pressure checks to prevent injury.

Specification Highlights

Precision matters when working on these older Perkins powerplants. This reference documents the vital machine values you need on the bench. For gasoline models, cylinder head bolt torque is specified at 122–129 N·m. Working on the MF270 diesel? The coolant system capacity is exactly 14.2 liters. Intake valve clearance is set at 0.30 mm, and crankshaft main journal diameters run 76.162–76.175 mm across most diesel configurations. This text serves purely as a contents overview of the manual and highlights available specifications rather than providing step-by-step repair instructions.