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Allis Chalmers 8070 Technical Data

AC 8070 Engine Specifications

Engine Model .................. Allis Chalmers 670i
Engine Type .................. 4-stroke, 6-cylinder turbocharged intercooled diesel
Number of Cylinders .................. 6
Displacement, cu in (L) .................. 426 (7.00)
Engine Bore, in (mm) .................. 4.25 (108.0)
Engine Stroke, in (mm) .................. 5.00 (127.0)
Aspiration .................. Turbocharged
Rated Engine Power, hp (kW) .................. 189.0 (140.0)
Rated Engine Speed, rpm .................. 2400
Compression .................. 15.5:1
Firing Order .................. 1-5-3-6-2-4
Fuel System .................. Direct injection
Air Cleaner .................. Dry with pre-cleaner
Fuel Tank Capacity, gal (L) .................. 60.0 (227.0)
Oil Capacity, qts (L) .................. 19.0 (18.0)
Coolant Capacity, qts (L) .................. 36.0 (34.1)
Electrical System Rating, Volts .................. 12
Charging System .................. Alternator

Power Take-Off

PTO Operational Type .................. Independent
PTO Horsepower, hp (kW) .................. 170.7 (127.3)
PTO Clutch .................. Wet disc
PTO Speed, rpm .................. 1000
PTO / Engine Speed, rpm .................. 1000/2253

Allis Chalmers 8070 Transmission

Transmission Type .................. Power Director
Gearbox Type .................. 20F/4R, partial powershift
Number of Forward Gears .................. 20
Number of Reverse Gears .................. 4
Clutch Type .................. Wet disc
Oil Capacity, qts (L) .................. 29.6 (28.0)
Maximum Forward Speed, mph (kph) .................. 16.7 (26.9)
Maximum Reverse Speed, mph (kph) .................. 7.5 (12.1)

Transmission Type .................. Power Director
Gearbox Type .................. 12F/2R, partial powershift
Number of Forward Gears .................. 12
Number of Reverse Gears .................. 2
Clutch Type .................. Wet disc
Oil Capacity, qts (L) .................. 29.6 (28.0)
Maximum Forward Speed, mph (kph) .................. 16.3 (26.2)
Maximum Reverse Speed, mph (kph) .................. 7.1 (11.4)

AC 8070 Wheels and Tires

Drive Wheels .................. 2WD/4WD
Steering Configuration .................. Front steer
Steering System .................. Hydrostatic power
Brakes Type .................. Differential hydraulic wet disc
Front Tire Size (2WD) .................. 10.0x16
Rear Tire Size (2WD) .................. 20.8-38
Front Tire Size (4WD) .................. 13.6x28
Rear Tire Size (4WD) .................. 18.4-42
Front Tread Width, in (mm) .................. 72-100 (1820-2540)
Rear Tread Width, in (mm) .................. 64-123 (1625-3110)

Allis Chalmers 8070 Hydraulic System

Hydraulic System Type .................. Closed center load-sensitive
Implement Pump Flow, gpm (Lpm) .................. 22.0 (83.3)
Steering Pump Flow, gpm (Lpm) .................. 9.5 (36.0)
Hydraulic Fluid Capacity, gal (L) .................. 7.4 (28.0)
Number of Standard Remote Valves .................. 2/3
3-Point Hitch Category .................. 3/2
Optional Lift Capacity 24-in (610mm) behind pin, lb (kg) .................. 8200 (3720)

AC 8070 Dimensions and Weight

Wheelbase, in (mm) .................. 106 (2690)
Length, in (mm) .................. 187 (4740)
Height (Hood), in (mm) .................. 70 (1770)
Height (Cab), in (mm) .................. 116 (2940)
Overall Width, in (mm) .................. 95.5 (2420)
Ground Clearance, in (mm) .................. 22 (550)
Turning Radius, in (mm) .................. 173 (4380)
Operating Weight (2WD), lb (kg) .................. 16850 (7645)
Operating Weight (2WD), lb (kg) .................. 17300 (7845)