1970s–1980s Massey-Ferguson MF230, MF235, MF240, MF245, MF250 Tractor Service & Repair Manual

This shop manual covers 1970s–1980s Massey-Ferguson 200 series tractors (MF230, MF235, MF240, MF245, and MF250), including diesel and gasoline engine configurations. It documents Continental Z-145 gasoline engines in the MF230, MF235, and MF245, and Perkins AD3.152 diesel engines across all five models.

Search, bookmarks, and wiring detail: The PDF has a searchable OCR text layer and 23 bookmarks for major sections. Recognition errors can affect searches for exact numbers and codes. Small wiring labels are readable when enlarged. The gasoline engine section has no dedicated bookmark; its topics are listed in the opening index.

• Engine repair: Engine removal and installation, cylinder head service, valve train work, piston and sleeve replacement, bearing inspection, and lubrication and cooling system service.

• Fuel and ignition: Zenith carburetor overhaul, diesel fuel system bleeding, injector nozzle testing, injection pump timing, governor adjustment, and distributor service.

• Clutches and transmissions: Dual and split torque clutch overhaul, six-speed and eight-speed gearboxes, manual shuttle repair, and Multi-Power clutch service.

• Rear axle, brakes, and PTO: Differential locks, bevel gears, planetary final drives, disc and shoe brakes, live PTO, and independent PTO clutch repair.

• Steering and hydraulics: Manual, power assist, and hydrostatic steering; power steering pump views; hydraulic lift troubleshooting, pressure and response control testing, and pump overhaul.

• Electrical systems: Alternator and starting motor tests and overhaul, charging circuit checks, and wiring diagrams covering engine, model, and fender variations.

This manual is suited to experienced tractor owners and repair technicians equipped for tractor splitting, press work, and hydraulic and electrical testing.

Gasoline and Diesel Engine Service

It details engine assemblies for both the Perkins diesel and Continental gasoline units, including cylinder heads, timing gears, crankshafts, bearings, and rear oil seals. Gasoline engine service addresses wet cylinder sleeves; diesel engine service covers dry sleeves. Condensed service data and overhaul specifications provide metric and U.S. customary dimensions, cylinder head torque values, connecting rod bearing clearances, valve clearances, ignition timing, and fluid capacities.

Diesel identification: Cylinder head tightening diagrams distinguish engines before serial number 152UA 28411DSL from that number onward. Suffixes D/DL identify five-ring pistons; DS/DLS identify four-ring pistons. Engines with L in the serial suffix use a lip-type rear crankshaft seal, while those without L use a rope seal. These distinctions help match the repair information to the engine before selecting replacement parts.

Fuel system scope: The Zenith 13795 carburetor exploded view supports MF235 and MF245 gasoline carburetor overhaul, with separate coverage for the MF230 carburetor. Diesel procedures include injector opening-pressure, leakage, and spray-pattern tests, plus injection pump removal, installation, static timing, and low-idle adjustment. Internal injection pump overhaul is assigned to a specialist service facility.

The diesel timing gear section warns that independent crankshaft or camshaft rotation can damage pistons and valve train components.

Clutch, Transmission, and Final Drive Repair

Tractor splitting, dual clutch adjustment, and split torque clutch overhaul are documented alongside transmission disassembly and assembly. Six-speed coverage applies to the MF230, MF235, and MF245; eight-speed coverage excludes the MF230. Manual shuttle sections cover the MF235, MF245, and MF250, while Multi-Power sections cover the MF235 and MF245.

The Multi-Power clutch cross-section and exploded assembly view show the disc stack, piston, and sealing rings. Reassembly cautions address clutch and transmission damage caused by forcing the engine and transmission together with mounting bolts.

Rear axle sections distinguish planetary final drives on Orchard tractors and the MF250 from straight axle arrangements. Disc brake instructions distinguish early dry-brake Orchard models from later wet-brake Orchard models and the MF250; other tractors use shoe brakes. Live PTO service and independent PTO clutch, valve, and pressure testing are also included.

Steering and Hydraulic Lift Diagnosis

Detailed sections outline manual and power steering gears and front axle setups. Hydrostatic steering covers the MF235 Orchard and MF245 models other than Vineyard, with separate treatment of Char-Lynn hand pumps and the standard MF245 steering unit.

Hydraulic lift troubleshooting sections help isolate operational faults before teardown begins, including jerky lifting, failure to lower, and hitch creep. Separate adjustment sections identify systems with and without a lift-cover dashpot, helping select the applicable checks and linkage settings.

Exploded views of the draft response dashpot, pressure control valve, and diaphragm accompany lift cover overhaul. For covers without a dashpot, internal linkage adjustment includes MFN 1080-D gauge tooling. Main pump overhaul distinguishes pump-mounted servo valve arrangements, with additional coverage of single and dual auxiliary pumps and the MF250 auxiliary valve.

The procedures address support and hoisting requirements for heavy assemblies and pressure release during auxiliary valve service.

Charging, Starting, and Wiring Diagrams

Electrical coverage distinguishes Delco-Remy units from Lucas and Perkins/Hitachi equipment. Tests cover alternator output, rectifiers, rotors, and starting motors.

Separate wiring diagrams show gasoline and diesel MF230/MF235/MF245 tractors with flat-top fenders, supplementary connections for dished fenders, and the MF240/MF250 circuit. These drawings identify switches, instruments, lighting, and charging connections.

English PDF and Included Reference Pages

This printable, English-language 93-page PDF includes the opening index, three pages of condensed service data, and wiring diagrams on the final three pages. Those final pages also contain the closing auxiliary valve procedures.