Oliver Tractor Shop Manual Collection, 1947–1967

The supplements work with the corresponding base-manual sections. The 660 supplement explains differences from the Super 66, while the later large-tractor supplement builds on the Super 99 and Super 99 GM material.

Earlier front axles: The 99/Super 99 live-spindle and spindle-carrier procedures apply to tractor serial 519300 and up. Earlier conventional-spindle tractors are referred to I&T Manual O-2, which is not included.

PDF Search, Bookmarks and Diagram Detail

Finding sections and reading diagrams: OCR text supports searches across the collection, and embedded bookmarks lead to the manual blocks and major service sections. OCR errors can affect exact searches. Small wiring labels require zooming; some fine diagram text remains soft.

One printable, English-language 275-page PDF contains the publications listed above. The total includes their covers, two additional front/end pages and one blank page.

Engine, Drivetrain and Lift-System Repair

These selected coverage highlights summarize the main workshop areas. Belt-pulley service and mechanical power-lift overhaul are further examples of the material included.

• Engine overhaul: Step-by-step procedures for engine removal, cylinder-head service, valve-train inspection, piston and sleeve work, crankshaft bearings, and reassembly.

• Fuel systems: Marvel-Schebler carburetor service, Century LP-Gas troubleshooting, and American Bosch PSB injection-pump timing, internal phasing, delivery calibration, and nozzle testing.

• Clutches and final drive: Traction-clutch and continuous-PTO service, Power Booster repair, transmission disassembly, differential overhaul, and bevel-gear alignment.

• Industrial drives: Reverse-O-Torc troubleshooting, pressure checks, control adjustments, and clutch overhaul, plus separate torque-converter coverage for the larger tractors.

• Steering and brakes: Saginaw manual steering, Gemmer power steering, front-axle service, and band- or double-disc-brake inspection and adjustment.

• Hydraulic lifts: Hydra-Lectric fault checks, bleeding, pump and valve service, work-cylinder repair, and Super 55/550 draft- and position-control adjustments.

• Cooling and electrical equipment: Radiator and water-pump service, thermostat checks, Wico magneto timing, and Delco-Remy starter, generator, and regulator specifications.

The overhaul and calibration sections suit experienced mechanics familiar with tractor splitting, precision measurement, and pressure-test equipment; injection-pump calibration also calls for suitable test facilities.

Diesel Timing and GM Engine Service

The diesel sections distinguish pump-to-engine timing from internal pump timing and phasing. Their symptom-based checks address erratic running, poor acceleration, smoke, and fuel dilution, supporting diagnosis before major components are condemned.

American Bosch PSB pump sectional views show the hydraulic head, delivery valve, governor, and drive arrangement. The hydraulic-head removal procedure includes a specific indexing requirement because the quill-shaft gear plate otherwise prevents the plunger drive gear from disengaging.

The Super 99 GM section covers the GM 3-71 two-cycle diesel, including unit injectors, governor adjustment, blower overhaul, and camshaft/balance-shaft timing. Blower-clearance diagrams distinguish rotor arrangements and the associated inspection points.

Power Booster and Torque-Converter Differences

The Power Booster material includes clutch setup, housing alignment, and bearing installation. It identifies tools such as the ST-125-B input-bearing and seal driver and ST-125-C bearing driver.

Early and later Reverse-O-Torc clutch assemblies have separate exploded views. Its 770/880 torque converter is a welded, sealed assembly: the manual covers removal, installation, alignment, and complete-unit replacement rather than internal overhaul.

The larger-tractor supplement separately documents the serviceable torque converter used in the 995 Lugmatic and applicable Super 99 GM installations, with troubleshooting, pressure and stall checks, removal, and overhaul procedures.

Hydra-Lectric Diagnosis and Steering Precautions

The lift-system sections combine mechanical fault checks with electrical testing of switches, relays, solenoids, and cylinder follow-up controls. No. 2 and No. 3 Hydra-Lectric wiring diagrams help identify the relevant circuit before tests or replacement parts are selected.

For the larger tractors, a depth-control hydraulic oil-flow diagram explains valve operation. The Super 55/550 section distinguishes manual-selector and double-feedback systems, with Vickers pump tests, internal control-valve service, and remote-cylinder coverage.

The Saginaw steering cautions identify possible ball-guide damage when a disconnected gear is forced against its stops. The Super 55/550 appendix also warns that striking the steering-shaft end can damage the power unit’s thin thrust-bearing races.

Observe the hydraulic safety precautions before opening pressurized components or working around supported implements.

Selected Valve-Adjustment and Oil-Capacity Data

For the Super 66, Super 77, Super 88, 770 and 880 engines listed in the corresponding service-data table, intake valve tappet clearance is 0.010 inch cold. The non-Super engine table specifies a different intake setting, so the model-specific table matters.

The non-Super 77D table lists crankcase oil capacity as 5.0 quarts. These examples sit alongside component clearances, fluid capacities, tightening torques, and test specifications for the individual assemblies.