1982-1985 Allis Chalmers™ 8010, 8030, 8050, 8070 tractor manual

Allis-Chalmers Shop Manual: Models 8010, 8030, 8050 & 8070

Keep your Allis-Chalmers tractors running at peak performance with this comprehensive professional-grade service manual. This manual provides essential technical data and step-by-step repair procedures for the iconic 8000-series heavy-duty agricultural tractors.

Covered Models & Engine Specifications

This manual is specifically designed for the following Allis-Chalmers models produced between 1981 and 1985:

• 8010 (1981-1985): Equipped with the 649T engine, a 301 cu. in. (4.9 L) turbocharged 6-cylinder powerplant.
• 8030 (1981-1985): Powered by the larger 670T engine, delivering 426 cu. in. (7.0 L) of displacement.
• 8050 (1981-1985): Features the 670I engine (426 cu. in. / 7.0 L) with an added intercooler for increased efficiency.
• 8070 (1981-1985): The flagship model, utilizing the high-output 670I intercooled engine (426 cu. in. / 7.0 L) rated for higher full-load RPM.

Identification & Serial Numbers

To ensure you are using the correct data for your specific machine, locate your Product Identification Number (PIN). For all models, the PIN (which combines the model and serial number) is found on the top surface of the left-hand frame rail. For engine-specific repairs, the engine model and serial numbers are stamped on a nameplate on the left side of the cylinder block.

What is Inside This Manual?

This manual covers every major system with detailed "Condensed Service Data" and in-depth repair instructions:

• Engine Service: Complete overhaul procedures for the 649T, 670T, and 670I engines, including cylinder head torque sequences, valve adjustments (0.015 in. hot), and turbocharger maintenance.
• Transmission & Drive Train: Detailed coverage of the Standard Transmission, the "Power Director" hydraulic clutch system, and the sophisticated Power Shift Transmission.
• Front-Wheel Drive (4WD) Axle: Comprehensive service for the front drive axle, including the automatic locking (No-Spin) differential and steering knuckle overhaul.
• Hydraulic & Lift Systems: Full schematics and testing for the axial piston, gear, and gerotor pumps, as well as 3-point hitch adjustments and remote valve self-cancelling settings.
• Electrical & Steering: Troubleshooting for the analog instrument panel, alternator output tests (Delco-Remy or Niehoff), and hydrostatic power steering bleeding procedures.
• Brakes & Final Drives: Maintenance for the wet-type disc brakes and planetary final drive units, including critical shim adjustments for bearing preload.

Technical Highlights for Owners

• Fluid Capacities: Precise info for all systems (e.g., 8010 cooling system: 26 qts; 8070 cooling system: 36 qts).
• Tightening Torques: Essential specs like Cylinder Head (165 ft.-lbs.) and Connecting Rod Caps (45 to 85 ft.-lbs. depending on model).
• Professional Insights: Includes specific "Tractor Split" instructions and specialized tool recommendations (like the ACTP series) to ensure safe and correct repairs.

Whether you are performing a simple oil filter change or a complex engine split, this manual is the definitive resource for every Allis-Chalmers 8000-series owner.