This Workshop Service Manual (WSM) covers International Harvester Cub Cadet models 76, 80, 81, 111, 182, 282, and 382. These sub-compact utility tractors, produced likely in the late 1960s to early 1970s, are recognized for their robust construction, durable cast-iron components, and versatility with a wide array of attachments. Designed for residential and light commercial property maintenance, the Cub Cadet line distinguished itself with premium quality and reliable performance, embodying International Harvester's legacy in agricultural and industrial equipment manufacturing.
This comprehensive manual provides detailed information essential for the maintenance and repair of your Cub Cadet. It covers all major systems, including the engine, transmission, drivetrain, hydraulics, electrical system, steering, and brakes. Within its pages, you will find systematic troubleshooting procedures, routine maintenance schedules, detailed component rebuild instructions, and critical technical specifications. This resource is designed to assist owners, mechanics, and technicians in ensuring the longevity and optimal performance of these dependable machines.
Make:
International Harvester
Models Covered:
76, 80, 81, 111, 182, 282, 382
Manual Identifier:
WSM (Workshop Service Manual)
Market Segment:
Sub-compact utility tractors for residential and light commercial property maintenance.
Key Competitors:
John Deere (early 110, 112, 820 series), Simplicity, Wheel Horse, Ford (garden tractors of the era).
Robust Construction:
Known for durable construction and cast-iron components, typical of International Harvester engineering.
Versatility:
Designed to accept a wide range of attachments (mowers, snow blowers, tillers, loaders).
Systems Covered:
Engine, transmission, drivetrain, hydraulics, electrical system, steering, brakes, chassis, body, attachments, troubleshooting, maintenance, specifications.
Estimated Page Count:
Approximately 300-500 pages (based on typical WSM depth for multiple models)
Manual Type:
Workshop Service Manual (WSM)
Format:
Digital (likely PDF)
Engine Overhaul:
Detailed disassembly, inspection, repair, and reassembly procedures for engine components.
Transmission And Drivetrain:
Service and repair for hydrostatic or gear-drive transmissions, differential, axles, and drive shafts.
Hydraulic System:
Repair and maintenance of hydraulic pumps, cylinders, valves, and related components for implement control.
Electrical System:
Wiring diagrams, troubleshooting for starting, charging, lighting, and accessory circuits.
Routine Maintenance:
Oil changes, filter replacements, lubrication points, and general upkeep schedules.
Troubleshooting Diagnostics:
Systematic identification and resolution of common operational issues and faults.
Component Rebuilds:
Step-by-step instructions for rebuilding major components like carburetors, alternators, and pumps.
Technical Depth:
Comprehensive, covering everything from basic adjustments to complete engine and transmission overhauls.
File Format Quality:
High-resolution, searchable PDF with clear diagrams and text.
Print Quality:
Designed for clarity in digital viewing and potential printing.
Binding Type:
N/A (Digital Format)
Paper Type:
N/A (Digital Format)
Engine Type:
Air-cooled, 4-stroke gasoline engines.
Displacement Range:
Likely in the 8-16 cubic inch (130-260 cc) range for models like 76, 80, 81, 111. Larger models (182, 282, 382) would have larger displacements, potentially 16-25 cubic inches (260-410 cc).
Engine Brands:
Often featured Kohler or Onan engines, or International Harvester's own small engines.
Horsepower Range:
Estimated 7-18 horsepower, depending on the specific model and engine variant.
Fuel System Type:
Carburetor (likely Zenith, Marvel-Schebler, or similar).
Standard Transmission:
Hydrostatic transmission (variable speed) or manual gear drive (e.g., 3-speed, 4-speed, or 8-speed with creeper).
Optional Transmission:
Varies by model, but hydrostatic was often an option on gear-drive models.
Drive Type:
Shaft drive to differential.
Differential Lock:
Likely available on some higher-spec models.
Wheelbase Range:
Approximate 40-50 inches (101-127 cm) depending on model.
Operating Weight Range:
Approximately 400-800 lbs (180-360 kg) without attachments.
Safety Compliance:
Designed to industry safety standards of the era; no formal crash ratings like modern automobiles.
Braking System:
Internal expanding shoe brakes, mechanical parking brake.
Operator Station:
Open operator station with seat and controls; PTO shielding and belt guards standard.
Infotainment Features:
None (basic utility tractor designed for function over comfort/entertainment).
Driver Assistance Features:
None.
Connectivity Features:
None.
Engine Oil Change:
Typically every 25-50 operating hours or annually.
Gear Oil Change:
Annually or every 100-200 operating hours for transmission and differential.
Engine Oil Grade:
SAE 30W or 10W-30, depending on climate and engine manufacturer recommendation (e.g., API Service Classification SF or SG).
Gear Oil Type:
GL-1 or GL-4 straight 90W gear oil for manual transmissions and differentials. Hydrostatic transmission fluid (e.g., IH Hy-Tran or equivalent).
Hydraulic Fluid:
IH Hy-Tran fluid or equivalent for tractors equipped with hydraulic systems.
Carburetor Issues:
Clogging due to stale fuel, worn throttle shafts, and vacuum leaks.
Hydrostatic Drive Wear:
Wear in the pump or motor components, especially with improper fluid maintenance or overloading.
Electrical Gremlins:
Corroded connections, worn wiring insulation, and failing points or condensers in older ignition systems.
Steering Wear:
Worn kingpins, tie rod ends, and steering shaft bushings leading to play.
Brand Legacy:
International Harvester (IH) was a major agricultural and industrial equipment manufacturer with a long history dating back to the early 20th century.
Cub Cadet Origin:
The Cub Cadet line began in 1961 as a premium line of garden tractors, distinguishing itself from the original Cub tractor. These models represent a mid-to-late 1960s to early 1970s iteration.
Production Period:
These models likely fall within the late 1960s to early 1970s production years.
Manufacturing Location:
Originally manufactured by International Harvester in the United States.
Industry Acclaim:
Cub Cadet brand was recognized for its quality and durability in the consumer and light commercial tractor market during its era.
Consumer Reports Era:
While specific ratings from contemporary publications may be scarce, IH Cub Cadets were generally considered premium products compared to many competitors.
Manufacturing Standards:
Built to IH's internal manufacturing quality standards.
