Target Audience:
Farmers and agricultural contractors needing a heavy-duty row-crop tractor
Advantage:
High power-to-weight ratio and innovative power director transmission for its time
Power:
Available with 4.9L gasoline or diesel engine, producing up to 83 hp
Transmission:
Power Director transmission offering eight forward and two reverse speeds
Hydraulics:
Draft-sensitive hydraulic system with optional power-shift rear wheels
Engine:
In-frame and out-of-frame overhaul procedures
Fuel System:
Carburetor, fuel pump, and injection pump adjustments
Electrical System:
Wiring diagrams, starter, and generator troubleshooting
Transmission:
Power Director unit, clutch, and gearbox service
Differential and Final Drive:
Ring gear, pinion, and axle shaft replacement
Hydraulic System:
Pump, lift cylinder, and draft control linkage adjustment
Steering:
Power steering unit and linkage service
Brakes:
Shoe and disc brake overhaul
PTO and Belt Pulley:
Disassembly and reassembly
Cooling System:
Radiator, thermostat, and water pump service
Exhaust System:
Manifold and muffler replacement
Troubleshooting:
Diagnostic charts with symptoms and causes
Specifications:
Standard torque values, clearances, and capacities
Special Tools:
Part numbers for factory tools required for service
Illustrations:
Exploded views and halftone diagrams
Level:
Advanced - intended for experienced mechanical technicians
Part Numbers:
OEM part numbers listed for each component
Schematic:
Parts diagrams for major assemblies
Compatibility:
Windows, Mac, Linux, iOS, Android - any device with PDF reader
Requirements:
Adobe Acrobat Reader or equivalent
Searchability:
Searchable text - contains OCR
Resolution:
High resolution - suitable for printing
Clarity:
Clear images and text
Binding Type:
Digital - no physical binding
Paper Type:
N/A - digital download
Base Engine:
Allis-Chalmers 4.9L (301 cu in) 4-cylinder gasoline or diesel
Optional Engine:
LP gas variant available
Power Output:
Up to 83 hp at 1800 rpm (manufacturer rated)
Torque:
Not specified for this model
Type:
Carburetor (gas) or direct injection (diesel)
Fuel Capacity:
Approximately 20 gallons (estimated)
Crash Test:
N/A - tractors are not crash tested
Brakes:
Independent left and right disc brakes for steering assistance
Lighting:
Headlights and taillights as standard equipment
ROPS:
Not standard - optional roll bar available in later years
Engine Oil:
Every 100 hours or annually
Transmission Oil:
Every 1000 hours or annually
Hydraulic Oil:
Every 1000 hours or annually
Grease Points:
Daily - as per lubrication chart
Engine Oil:
API SAE 30 or SAE 20W-40 (consult manual)
Transmission/Hydraulic Oil:
Allis-Chalmers P/N 704300 or equivalent Type C-1 fluid
Coolant:
50/50 water and ethylene glycol mixture
Common Issue:
Power director clutch slippage - regular adjustment recommended
