Target Audience:
Do-it-yourself tractor owners, farm mechanics, restoration enthusiasts, and professional service technicians working on Allis-Chalmers C Tractors.
Value Proposition:
Provides complete, factory-authorized repair and maintenance information, saving users money on dealership service and empowering them with in-depth knowledge of their tractor's systems.
Manual Features:
Hundreds of pages, detailed step-by-step instructions, hundreds of photos and illustrations, critical notes/cautions/warnings, numbered instructions, bold figure numbers, enlarged insets for detailed part examination, searchable PDF for quick information retrieval, printable pages.
Benefits:
Saves money on repairs, enhances understanding of tractor mechanics, facilitates proper maintenance, and aids in restoration projects.
Systems:
Engine, Cooling System, Fuel System, Power Train, Front Axle, Clutch, Differential Lock, Electrical System, Brakes, Fenders, Fuel Tank & Platform, Final Drive, Front System, Front-Wheel Drive, Hydraulic System, Main Drive Bevel Gears and Differential, Park Brake, Power Steering System, Power Take-Off, Rear Axle, Steering Gear, Transmission, General Information, Specifications, Troubleshooting
Estimated Pages:
Hundreds
Type:
Factory Service Repair Manual
Engine Systems:
Engine overhaul, tuning, diagnostics, lubrication system, cooling system, fuel delivery and injection/carburetion, exhaust system.
Drivetrain Systems:
Clutch service and adjustment, transmission disassembly and reassembly, differential maintenance, final drive assembly, power take-off (PTO) operation and repair.
Chassis Systems:
Front axle and steering geometry, braking system components and service, rear axle assembly, hydraulic system for implement control (if equipped), wheel and tire specifications.
Electrical Systems:
Ignition system, starting motor, charging system (generator/alternator), lighting system, wiring diagrams, troubleshooting electrical faults.
Body And Frame:
Fenders, fuel tank mounting and removal, platform structure, steering column, and general chassis components.
Maintenance:
Scheduled maintenance tasks, fluid level checks and changes, filter replacements, lubrication points and schedules, tune-up procedures.
Repair:
Step-by-step instructions for component disassembly, inspection, repair, reassembly, and adjustment for all major systems.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common operational problems, including specific symptoms and potential causes.
Diagnostics:
Systematic troubleshooting charts for common issues across all major systems, aiding in pinpointing the root cause of problems.
Overhaul:
Complete engine, transmission, and differential overhaul procedures with detailed steps for disassembly, cleaning, inspection, and reassembly of all internal components.
Depth:
Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds, with detailed troubleshooting guides and electrical diagnostics.
Torque Specifications:
Includes critical torque specifications for engine, transmission, and chassis fasteners for proper assembly and longevity.
Clearances And Adjustments:
Detailed specifications for valve clearances, ignition timing, clutch pedal free play, brake adjustments, and other critical operating parameters.
Illustrations:
Richly illustrated with detailed drawings, diagrams, and photographs to visually guide the user through each repair or maintenance task.
Engine Model:
Allis-Chalmers Model G (typically, though often referred to by its tractor designation)
Displacement:
Approximately 125.3 cubic inches (2.05 Liters)
Bore X Stroke:
3.25 in x 4.25 in (82.5 mm x 108 mm)
Horsepower Drawbar:
Approximately 23 HP
Horsepower Belt:
Approximately 27 HP
Carburetor:
Often equipped with a Zenith or Marvel-Schebler carburetor (specific model would be detailed in the manual).
Ignition System:
Distributor-based ignition with spark plugs. Manual provides timing specifications and component testing.
Wheelbase:
Approximately 76 inches (1930 mm)
Length:
Approximately 115 inches (2921 mm)
Width Front Tread:
Adjustable, typically around 50-60 inches (1270-1524 mm)
Width Rear Tread:
Adjustable, typically around 52-76 inches (1321-1930 mm)
Ground Clearance:
Approximately 13-15 inches (330-381 mm), depending on tire size and configuration.
Shipping Weight:
Approximately 2,700 lbs (1225 kg)
Safety Standards:
As a tractor of its era, it predates modern automotive safety rating systems. Safety precautions focus on operational procedures and mechanical integrity.
Braking System:
Mechanical contracting band or drum brakes, typically actuated by foot pedals, with a separate park brake.
Operator Station:
Open operator station, with emphasis on proper operation and awareness of moving parts.
Engine Oil Change:
Typically every 40-50 operating hours, or seasonally. Specific interval detailed in manual.
Air Cleaner Service:
Frequent cleaning recommended, especially in dusty conditions. Detailed procedure in manual.
Engine Oil Type:
SAE 30 or SAE 10W-30, depending on climate. Specific API service classification (e.g., API GL-1 or API GL-4 for transmission/rear axle) would be in manual.
Coolant Type:
Water-glycol mixture (50/50) for freeze protection. Specific type of coolant if additives were required.
Transmission Fluid Type:
EP (Extreme Pressure) Gear Lubricant, SAE 90. Specific Allis-Chalmers recommended fluid would be detailed.
Hydraulic Fluid Type:
If equipped with a hydraulic system, likely a tractor hydraulic fluid (e.g., IH Hy-Tran or equivalent) or SAE 10W hydraulic oil. Manual will specify.
Common Wear Items:
Clutch wear, carburetor issues (clogging/adjustment), ignition system components (points, condenser, spark plugs), hydraulic pump seals (if applicable), starter and generator brushes.
Potential Problems:
Overheating due to cooling system blockages or worn water pump, fuel system leaks, transmission gear wear, electrical system faults from aging wiring.
Manufacturer:
Allis-Chalmers Manufacturing Company, a prominent American industrial manufacturer.
Significance:
The Allis-Chalmers C was a popular general-purpose tractor, a successor to earlier models, known for its utility and versatility on farms of the mid-20th century.
Market Segment:
Light to medium-duty farm tractor.
Manufacturing Location:
Milwaukee, Wisconsin, USA
