Allis Chalmers HD20

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3-Point Hitch
Rear type -
Control -
Rear lift -
Front hitch -
Front lift -
Power Take-off (PTO):
Rear PTO -
Clutch -
Rear RPM -
Front PTO -
Engine RPM -
Capacity
Fuel 120 gal [454.2 L]
Dimensions & Tires
Wheelbase -
Weight 41000 lbs [18597 kg]
Front tire tracks
Rear tire tracks
Allis Chalmers HD20 Power:
Engine gross -
Engine max -
Mechanical
Chassis crawler
Differential lock -
Steering -
Brakes -
Trailer brakes -
Cab Open operator station.
Hydraulics
Type -
Rear valves -
Mid valves -
Pump flow -
SCV flow -
Total flow -
Electrical
Ground -
Charging system -
Charging amps -
Charging volts -
Battery
Number 2
Cold-cranking amps -
Volts 12
Engine Detail
General Motors
blower diesel
6-cylinder
liquid-cooled 2-cycle vertical I-head
660 ci [10.8 L]
Engine specifications
Bore/Stroke 5.00x5.60 inches [127 x 142 mm]
Emissions -
Emission control -
Rated Power -
Maximum Power -
Air cleaner -
Pre-heating -
Compression -
Fuel system -
Rated RPM 1700
Operating RPM -
Torque -
Torque RPM -
Starter -
Starter volts 24
Oil capacity -
Oil change -
Coolant capacity 60 qts [56.8 L]
Type 1951 - 1954
Gears 2 forward and 1 reverse
Clutch -
Speeds -
Type torque converter
Gears -
Clutch -
Speeds -
Allis Chalmers HD20 Tires
Ag front 1951 - 1954
Ag rear tracks
Standard tires (ag) -
Dimensions
Weight (operating) -
Weight (max capacity) -
Front axle load -
Rear axle load -
Wheelbase -
Length 191 inches [485 cm]
With hitch Length: -
Width -
Height (hood) -
Height (cab) -
Front axle -
Rear axle -
Height (exhaust) -
Clearance (front axle) -
Clearance (rear axle) -
Clearance (drawbar) -
Test name
Test Date 1951 - 1954
Test Type -
PTO power (max) -
PTO fuel use (max) -
PTO power (rated engine speed) -
PTO fuel use (engine speed) -
PTO fuel use (PTO speed) -
Drawbar power (max) 116.7 hp [87.0 kW]
Drawbar fuel use (max) -
Drawbar pull (max) 30,464 lbs [13818 kg]
Max pull gear -
Test name
Test Date July 1951
Test Type -
PTO power (max) -
PTO fuel use (max) -
PTO power (rated engine speed) -
PTO fuel use (engine speed) -
PTO fuel use (PTO speed) -
Drawbar power (max) -
Drawbar fuel use (max) -
Drawbar pull (max) -
Max pull gear -