1977-1981 Yanmar YM135 / YM155 / YM195 / YM240 / YM330 Shop Manual

1977–1981 Yanmar YM135, YM155, YM195, YM240, YM330 Shop Manual

• Covers the 1977–1981 Yanmar YM135, YM155, YM195, YM240, and YM330 tractors including D-series four-wheel drive variants
• Original OEM publication dated 1977–1981 production era
• Features 120+ exploded-view diagrams of powertrain, hydraulic, and electrical assemblies
• Stored against your account so you can retrieve it after a hard-drive loss
• Full-text search finds any part number in seconds
• Suitable for printing individual sections for shop-floor use
• This official reference documents technical parameters for the 2T73A, 2TR13A, 2T84A, 2TR20A-X, and 3T84A engine series

Technical Documentation Scope

The 1977–1981 Yanmar YM135 through YM330 shop manual provides detailed technical data for managing major tractor systems. Chapters detail engine overhaul including cylinder head, timing gears, and camshaft specifications. Drive systems coverage extends to front wheel drive, transmission assemblies, and differential/bevel gear mesh settings. Final drive and rear axle overhaul procedures are documented with specific shim selection charts for backlash control. The electrical section details alternator, regulator, and starter specifications alongside complete wiring diagrams for identifying circuit paths. Cooling and lubrication systems are also covered with comprehensive fluid capacity tables.

Specification Highlights

Torque values for cylinder head retaining fasteners are documented at 110–150 N·m (81–111 lbf·ft) across all models. Valve clearance for the intake is listed at 0.15–0.20 mm in the cold specification table. Transmission and hydraulic system combined capacity for the YM330 is documented at 20 liters. Technical information for what an OEM service publication covers includes detailed tolerances for piston ring end gaps and crankshaft main journal clearances. This 62-page factory technical publication covers the 1977–1981 Yanmar YM135 through YM330 tractor series, documenting essential powertrain, hydraulic, and electrical specifications required for maintaining these classic agricultural machines.