International Cub Cadet 71, 102, 122, 123 & CW-36 Tractor 1966 Service & Repair Manual (P/N GSS-1369)
93 Pages • 23.40 MB • Instant, Printable PDF
Cub Cadet Models Covered & Key Technical Specifications
Models: Cub Cadet 71, Cub Cadet 102, Cub Cadet 122, Cub Cadet 123
Sub-models / Variants: Manual Starting, Electric Starting, Hydrostatic Drive (123)
Model Years: 1966
Technical Data:
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Engine displacement: 16.23 cu. in. (Model 71), 23.9 cu. in. (Model 102), 29.1 cu. in. (Models 122 & 123)
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Horsepower ratings: 7.0 HP (Model 71), 10.0 HP (Model 102), 12.0 HP (Model 123) at 3600 rpm
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Engine configuration: Single-cylinder, 4-cycle, air-cooled gasoline
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Compression pressure: 110–120 psi at 1000 rpm
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Spark plug gap: 0.025 inch (14 mm plug)
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Valve clearance (cold): Intake 0.006–0.008 inch (Model 71), Intake 0.008–0.010 inch (Models 102, 122, 123)
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Crankshaft end play: 0.002–0.023 inch (Model 71), 0.003–0.020 inch (Models 102, 122, 123)
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Connecting rod cap screw torque: 200 inch pounds (Model 71), 300 inch pounds (Models 102, 122, 123)
Cub Cadet Manual Features & Content Preview
- Details the 1966 International Cub Cadet 71, 102, 122, and 123 series, including gasoline-powered Kohler engine variants and hydrostatic transmission models.
- Official 93-page International Harvester OEM PDF publication (GSS-1369, July 1966).
- Features 64 illustrated exploded-view diagrams of powertrain, steering, and mower deck assemblies to support your shop's repair planning.
- Covers critical assemblies such as the creeper drive, front PTO clutch, rear PTO, recoil starter, reduction drive, and the automatic compression release.
- Provides comprehensive factory data for carburetor adjustments, current-voltage regulator servicing, magneto ignition, breaker points, and ignition timing.
Mechanical and Powertrain Coverage
This OEM publication delivers the exact technical data needed for routine maintenance, thorough troubleshooting, and full component overhauls. Instead of outsourcing expensive dealership jobs, this manual equips DIYers and mechanics with the step-by-step instructions needed for complex tasks like reboring the cylinder block and safely splitting and recoupling the tractor. It divides into three core sections: Engine, Chassis, and IH Equipment. Inside, mechanics will find comprehensive teardown references for the Kohler K-series powerplants (K-161, K-241, and K-301). Critical baseline measurements are fully documented. These include valve clearance, crankshaft end play, and governor linkage settings. Electrical system sections provide detailed schematic wiring diagrams for magneto and battery ignition circuits, alongside motor-generator diagnostic values to quickly verify charging system health. Always ensure machine stability and disconnect the battery ground before beginning any heavy mechanical work to prevent accidental starter engagement.
Chassis and Implement Specifications
Chassis documentation outlines the internal layout of the selective sliding spur gear transmission, differential carrier assemblies, and the Model 123 hydrostatic drive system. Factory specifications guide the technician through front axle teardowns, steering geometry checks, and clutch linkage adjustments. Implement sections catalog the components for the 3-spindle mower decks, the CW-36 snow thrower, and the rotary tiller assemblies.
To support daily workshop routines, the manual provides clear visual aids such as transmission cross-section views, gear tooth bearing pattern charts, snap ring thickness charts, and belt adjustment diagrams for professional equipment repair. By referencing these exact factory visuals, mechanics can accurately shim internal driveline components on the first try, significantly reducing rework and turnaround time on the bench. Precise torque settings for major fasteners and strict tolerance charts for internal gears and bearings are documented throughout the text. This ensures mechanics have the exact factory numbers needed to return the machine to its original operating standards.
When performing major repairs on these vintage Cub Cadet models, technicians must avoid a notorious service trap: failing to drive wooden wedges between the front axle and the frame prior to splitting the tractor allows the engine block to tilt, which frequently bends and ruins the clutch drive components. Additionally, when servicing the charging system, mechanics often make the critical error of using sandpaper to clean the current-voltage regulator points; this leaves behind an abrasive residue that permanently destroys the electrical contacts.
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