Engine:
Comprehensive coverage including disassembly, assembly, specifications, and troubleshooting for gasoline and diesel variants.
Fuel System:
Detailed procedures for carburetor (gasoline), injection pump, injectors, and fuel lines (diesel).
Cooling System:
Radiator, thermostat, water pump, and fan maintenance and repair.
Ignition System:
Spark plug specifications, timing, distributor, and coil testing (gasoline models).
Electrical System:
Starter, generator/alternator, battery, lighting, and wiring diagrams. Troubleshooting electrical faults.
Transmission:
Service and repair of the gearbox, clutch, PTO (Power Take-Off) unit, and differential.
Hydraulic System:
Allis-Chalmers Power Director, implement control, hydraulic pump, cylinders, and valve troubleshooting and repair.
Steering System:
Mechanical and power steering system maintenance and overhaul.
Brake System:
Service and adjustment of the brake assemblies and linkages.
Front Axle:
Front wheel bearing service, kingpins, and tie rod maintenance.
Rear Axle:
Rear axle assembly, final drives, and differential service.
Body And Frame:
Sheet metal repair, fender mounting, and chassis alignment.
Operator Controls:
Linkage adjustments for throttle, clutch, brake pedals, and PTO engagement.
Maintenance:
Routine maintenance tasks, lubrication points, filter changes, and fluid checks.
Troubleshooting:
Diagnostic procedures for common and uncommon issues across all major systems.
Disassembly And Assembly:
Step-by-step instructions for removing, overhauling, and reinstalling components.
Rebuilding Procedures:
Detailed rebuild instructions for engines, transmissions, hydraulic pumps, and other major assemblies.
Adjustments:
Precise instructions for adjusting clutch, brakes, steering, and hydraulic controls.
Diagnostics:
Systematic approaches to identifying and resolving mechanical and electrical problems.
Engine Rebuild:
Full engine overhaul procedures including piston, ring, bearing, valve, and cylinder head service.
Transmission Overhaul:
Detailed steps for dismantling, inspecting, and reassembling the main gearbox and associated components.
Hydraulic Pump Rebuild:
Specific instructions for rebuilding the internal gear or vane-type hydraulic pumps.
Depth:
Comprehensive, suitable for professional mechanics and experienced DIY users.
Detail Level:
Includes detailed technical specifications, torque values, clearances, and component tolerances.
Diagnostic Tools:
Mentions necessary special tools and diagnostic equipment where applicable.
Wiring Diagrams:
Includes electrical schematics and wiring diagrams for troubleshooting lighting and starting/charging systems.
Torque Specifications:
Essential torque values for critical fasteners, crucial for proper assembly and preventing component failure.
Completeness:
Comprehensive Workshop Service Manual (WSM), covering all aspects of repair and maintenance.
Engine Oil Change:
Typically every 40-60 operating hours or annually (refer to specific manual section for exact recommendations based on usage).
Air Filter Service:
Check and clean/replace as needed based on operating conditions, often every 50-100 hours.
Transmission Oil Change:
Recommended every 500-800 operating hours or annually.
Engine Oil Type:
SAE 30 or 10W-30 (depending on climate), API CD or higher for diesel, API SF or higher for gasoline.
Hydraulic Fluid Type:
Allis-Chalmers HD-20 or equivalent universal tractor hydraulic fluid (UTHF), e.g., John Deere Hy-Gard.
Transmission Fluid Type:
Typically SAE 90 gear oil or specified UTHF. Consult manual for exact specification.
Clutch Wear:
Common wear item, especially with heavy use; manual provides adjustment and replacement procedures.
Hydraulic Leaks:
Seal degradation and pump wear can lead to system leaks or reduced performance; detailed troubleshooting in manual.
Carburetor Issues:
Gumming, sticking, and float issues on gasoline models; manual covers rebuilding and adjustment.
Diesel Injection Pump Timing:
Crucial for performance and emissions; manual details correct timing procedures.
Power Director Engagement:
Can sometimes be jerky or fail to engage properly due to internal wear or adjustment issues; manual provides guidance.