Allis Chalmers D12

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3-Point Hitch
Rear type I
Control -
Rear lift -
Front hitch -
Front lift -
Power Take-off (PTO):
Rear PTO -
Clutch -
Rear RPM 540
Front PTO -
Engine RPM -
Capacity
Fuel 12.5 gal [47.3 L]
Dimensions & Tires
Wheelbase 78.75 inches [200 cm]
Weight 2800 to 5630 pounds
Front tire 5.00x15
Rear tire 10x24
Allis Chalmers D12 Power:
Engine gross -
Engine max -
Mechanical
Chassis 4x2 2WD
Differential lock -
Steering -
Brakes -
Trailer brakes -
Cab Open operator station.
Hydraulics
Type Snap-Couple
Rear valves -
Mid valves -
Pump flow -
SCV flow -
Total flow -
Electrical
Ground -
Charging system -
Charging amps -
Charging volts -
Battery
Number 1
Cold-cranking amps -
Volts 6
Engine Detail
Original engine, used until 149 ci engine appeared in 1961.
Allis-Chalmers
gasoline
4-cylinder
liquid-cooled vertical L-head
138.7 ci [2.3 L]
Engine specifications
Bore/Stroke 3.375x3.875 inches [86 x 98 mm]
Emissions -
Emission control -
Rated Power -
Maximum Power -
Air cleaner oil bath
Pre-heating -
Compression -
Fuel system -
Rated RPM 1650
Operating RPM -
Torque -
Torque RPM -
Starter -
Starter volts 6
Oil capacity 4 qts [3.8 L]
Oil change -
Coolant capacity 8 qts [7.6 L]
Type sliding gear
Gears 4 forward and 1 reverse
Clutch -
Speeds Allis D12 with 10x24 rear tires.
Allis Chalmers D12 Tires
Ag front 5.00x15
Ag rear 10x24
Standard tires (ag) -
Dimensions
Weight (operating) -
Weight (max capacity) -
Front axle load -
Rear axle load -
Wheelbase 78.75 inches [200 cm]
Length 121 inches [307 cm]
With hitch Length: -
Width -
Height (hood) 52.5 inches [133 cm]
Height (cab) -
Front axle -
Rear axle -
Height (exhaust) 76.5 inches [194 cm]
Clearance (front axle) 20.25 inches [51 cm]
Clearance (rear axle) 22.25 inches [56 cm]
Clearance (drawbar) -
Test name
Test Date October 13 - 20, 1959
Test Type 138 gasoline 4-speed 2WD
PTO power (max) -
PTO fuel use (max) -
PTO power (rated engine speed) 28.56 hp [21.3 kW]
PTO fuel use (engine speed) 2.3 gal/hour [8.7 l/hour]
PTO fuel use (PTO speed) -
Drawbar power (max) 23.56 hp [17.6 kW]
Drawbar fuel use (max) 2.2 gal/hour [8.3 l/hour]
Drawbar pull (max) 4,041 lbs [1832 kg]
Max pull gear 1
Test name
Test Date April 4 - 19, 1962
Test Type 149 gasoline 4-speed 2WD
PTO power (max) -
PTO fuel use (max) -
PTO power (rated engine speed) 33.32 hp [24.8 kW]
PTO fuel use (engine speed) 2.7 gal/hour [10.2 l/hour]
PTO fuel use (PTO speed) -
Drawbar power (max) 29.43 hp [21.9 kW]
Drawbar fuel use (max) 2.8 gal/hour [10.6 l/hour]
Drawbar pull (max) 4,241 lbs [1923 kg]
Max pull gear 1