Target Audience:
Owners, operators, and service technicians of the Allis-Chalmers Model 8070 Tractor.
Manual Value:
Provides comprehensive, factory-authorized repair and maintenance data, offering a cost-effective alternative to dealership service.
Information Layout:
Organized with a table of contents for easy navigation and information retrieval.
Benefit To User:
Enables users to perform repairs and maintenance efficiently, saving money and gaining in-depth knowledge of the tractor's systems.
Primary Coverage:
Service and Repair of Allis-Chalmers Model 8070 Tractor
Diagnostic Coverage:
Troubleshooting and diagnosis of common and complex issues
Maintenance Coverage:
Scheduled maintenance, lubrication, and fluid checks
Estimated Pages:
Comprehensive (Specific page count not provided in product information, but implied to be extensive for factory service)
Type:
Factory Service Repair Manual / Workshop Manual / Troubleshooting Manual
Primary Language:
English
Compatibility:
Usable on all versions of Windows & Mac.
Software Requirements:
Adobe PDF Reader & WinZip (for extraction/viewing).
Engine:
Full engine overhaul, diagnostics, fuel system, lubrication system, cooling system, ignition system (if applicable to diesel), emission controls.
Transmission:
All aspects of transmission repair, maintenance, and adjustment, including powershift or hydrostatic components if equipped.
Drivetrain:
Front and rear axle assemblies, differential, PTO (Power Take-Off) operation and repair, drive shafts, and final drives.
Hydraulic System:
Hydraulic pump, cylinders, control valves, filters, reservoir, and hitch system operation, repair, and troubleshooting.
Electrical System:
Wiring diagrams, starter, alternator, battery system, lighting, instrumentation, and component testing and repair.
Braking System:
Service and parking brake systems, including hydraulic components and adjustments.
Steering System:
Power steering components, hydraulic steering cylinders, linkages, and adjustments.
Operator Station:
Cab systems, controls, seating, heating/cooling (if equipped), and instrument panel.
Chassis And Frame:
Frame integrity, mounting points, and basic chassis components.
Maintenance Procedures:
Regular service intervals, lubrication points, filter replacement, fluid level checks and changes, safety inspections.
Repair Procedures:
Step-by-step repair instructions for all major systems, including component removal, disassembly, inspection, reassembly, and installation.
Troubleshooting Procedures:
Systematic diagnostic charts and procedures for identifying and resolving malfunctions.
Adjustment Procedures:
Calibration and adjustment of engine, transmission, hydraulics, brakes, and clutch.
Diagnostics:
Procedures for testing and diagnosing electrical components, sensors, and actuators. Includes information on interpreting diagnostic codes if applicable.
Depth Of Coverage:
Comprehensive factory-level repair information suitable for professional technicians and advanced DIY users. Covers everything from routine maintenance to complete engine and transmission overhauls.
Manufacturer:
Allis-Chalmers (Engine likely sourced or manufactured by or for Allis-Chalmers)
Model Designation:
Specific engine model not detailed, but manual covers its complete service.
Type:
Diesel (typical for tractors of this era and class)
Horsepower Range:
Typically in the 100-150 HP range for a tractor of this designation (Specific HP not provided in product info).
Torque Specifications:
Specific torque figures not provided, but manual details performance testing and adjustments.
Components:
Fuel injection pump, injectors, fuel filters, fuel lines, lift pump.
Type:
Likely a powershift or synchromesh manual transmission with multiple gear ranges. Specifics detailed in the manual.
Features:
May include PTO options, creeper gears, or specific agricultural transmission configurations.
Overhaul Support:
Complete procedures for transmission rebuilds, including clutch packs, gears, and sealing.
Operator Interface:
Basic instrumentation typical for its era: tachometer, engine temperature gauge, fuel gauge, oil pressure warning light, and hour meter. No advanced infotainment systems.
Safety Features:
ROPS (Roll-Over Protective Structure) if factory-equipped, safety seat interlocks, and brake activation systems.
Power Outlets:
Typically has a 12V electrical system for lights and accessories, but no modern connectivity ports.
Engine Oil Change:
Typically every 250-500 operating hours, or annually. Specific interval detailed in the manual.
Hydraulic Fluid Change:
Typically every 1000-2000 operating hours. Manual will specify exact interval and fluid type.
Air Filter Replacement:
Interval based on operating conditions; manual will provide guidance.
Engine Oil Type:
API CD or CE classification, SAE 15W-40 or 10W-30 (check manual for specific recommendation).
Hydraulic Fluid Type:
Tractor Hydraulic Fluid (THF) or equivalent meeting Allis-Chalmers specifications. Manual will list specific part numbers or standards.
Transmission Fluid Type:
Specific transmission fluid type and capacity detailed in the manual.
Coolant Type:
Ethylene glycol-based antifreeze with appropriate water mix. Manual specifies ratios and types.
Common Wear Points:
Wear on clutch packs (if powershift), hydraulic pump performance degradation, PTO engagement issues, and front axle wear are potential common points.
Electrical Gremlins:
Age-related issues with wiring harnesses, switch failures, and starter solenoid problems can occur.
