1970s International 454, 474, 475, 574, 674, 2400 & 2500 Series A Tractors Operator's Manual • P/N PN 1092 877 R7
International Models Covered & Key Technical Specifications
Models: International 454, 474, 475, 574, 674, 2400, 2500
Sub-models / Variants: Gear Drive, Hydrostatic Drive, Series A Industrial Tractors
Trade Names: International Harvester
Model Years: 1970s
Technical Data:
- Engine displacement: D-179 (2933 cc), D-206 (3376 cc), D-212 (3475 cc), D-239 (3911 cc)
- Engine configuration: 3-cylinder (D-179) or 4-cylinder (D-206, D-212, D-239) diesel
- Transmission types: 8-speed forward/4-speed reverse gear drive, Torque Amplifier, Hydrostatic drive
- Fuel system: C.A.V. or Bosch diesel injection
- Valve clearance (Hot): 0.25 mm (inlet), 0.30 mm (exhaust)
- Electrical system: 12-volt, negative earth
International Manual Features & Content Preview
Operator and Maintenance Manual: International 454–2500 Series A Tractors
- Covers 1970s International 454, 474, 475, 574, 674, 2400, and 2500 Series A models (gear drive and hydrostatic transmissions)
- Original OEM publication, form number 1092 877 R7, spanning 135 pages
- Contains 80 technical illustrations, lubrication charts, service interval tables, and torque specifications
- Details control identification, starting procedures, and routine maintenance to prevent heavy repair work
- High-resolution PDF provided as an instant download right after checkout
This manual provides essential reference material for owner-operators and technicians maintaining 1970s-era International Harvester tractors. The documentation details tractor identification, daily operating instructions, and critical safety protocols. Always review these factory-specified safety procedures before operating heavy machinery or inspecting hydraulic components to prevent severe injury. Chapters cover the full range of controls, including the fuel system, hydrostatic range selectors, gear drive lever patterns, and hydraulic linkage management. Maintenance sections focus on the cooling system, air intake filtration, and the strict lubrication intervals required for reliable field operation.
Technical data is broken down for each model variant, covering engine specifications for the D-179, D-206, D-212, and D-239 power units. The text outlines clear limits and tolerances, making it easier to evaluate when a component might need a full repair. For example, cylinder head bolt torque values are documented in a three-stage sequence, specifying 95 lb-ft (13.1 kgm) for 475 models. The cylinder head specification table lists intake valve clearance at 0.25 mm. Front wheel bearing assembly torque is set to 70 lb-ft (9.7 kgm) prior to final cotter pin adjustment. You will also find comprehensive wheel track adjustment charts for varying tire sizes.
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