Oliver SUPER 55HC / SUPER 55 DIESEL / 550 HC / 550 DIESEL Shop Manual

Technical Scope and Coverage for the Oliver SUPER 55 and 550

• Covers 1955–1960s Oliver SUPER 55HC, SUPER 55 DIESEL, 550 HC, and 550 DIESEL tractors including both fixed and adjustable tread configurations
• Original OEM publication, BestManuals.net digital edition for the Oliver Corporation
• Contains 47 detailed exploded-view diagrams and 3 distinct troubleshooting charts for diesel systems and hydraulic controls
• Delivered as a direct download the moment payment clears
• Indexed PDF search covers every chapter and appendix
• This 63-page manual is the factory-authorized reference for engine assembly, transmission splitting, and steering system overhaul specific to the 144-155 cubic inch powerplants

Component and System Documentation

The 1955–1960s Oliver SUPER 55 and 550 shop manual details procedures for the engine, transmission, and hydraulic systems. The engine section covers assembly, connecting rods, cylinder head replacement, and timing gear alignment for both diesel and HC (high compression) gasoline engines. A dedicated transmission segment outlines the six-speed constant mesh gear train, including removal of the input double gear, countershaft high and low range components, and differential bevel gear service. Detailed sub-sections cover the steering system, including both manual Saginaw recirculating ball nut gear and power steering unit maintenance.

Hydraulic and Fuel System Specifications

The hydraulic lift system section documents the Vickers vane pump, internal control valve spool adjustments, and dual-system linkage setups (manual selector and double feed-back). Fluid capacities are provided for the hydraulic reservoir, transmission/differential case, and crankcase. Documentation for the diesel system encompasses American Bosch fuel injection pump phasing, nozzle opening pressure settings at 1750 PSI, and energy cell servicing. The electrical section covers Delco-Remy generator/regulator specifications and 6/12-volt starting motor reference data. Cylinder head torque values are documented at 92–100 ft. lbs. for non-diesel engines and 112–117 ft. lbs. for diesel models in the engine data section. Main bearing cap torque is specified at 88–92 ft. lbs. in the assembly data. Connecting rod bolt torque is listed as 46–50 ft. lbs. across all engine variants. Reference only — always consult a certified technician before performing service on this equipment. An official 63-page Oliver OEM shop manual covering the 1955–1960s SUPER 55 and 550 series, documenting engine, hydraulic, transmission, and power steering specifications for the respective HC and Diesel builds.