Allis Chalmers HD7W

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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 31 gal [117.3 L]
Dimensions & Tires
Wheelbase -
Weight 14,000 lbs [6350 kg]
Front tire tracks
Rear tire tracks
Allis Chalmers HD7W Power:
Engine gross -
Engine max -
Mechanical
Chassis crawler
Differential lock -
Steering -
Brakes -
Trailer brakes -
Cab -
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 6
Engine Detail
General Motors 3-71
blower diesel
3-cylinder
liquid-cooled 2-cycle vertical I-head
213 ci [3.5 L]
Engine specifications
Bore/Stroke 4.25x5.00 inches [108 x 127 mm]
Emissions -
Emission control -
Rated Power -
Maximum Power -
Air cleaner oil bath
Pre-heating -
Compression -
Fuel system -
Rated RPM 1500
Operating RPM -
Torque -
Torque RPM -
Starter -
Starter volts 12
Oil capacity -
Oil change -
Coolant capacity 23 qts [21.8 L]
Type 1940 - 1950
Gears 4 forward and 1 reverse
Clutch -
Speeds  
Type sliding gear
Gears -
Clutch -
Speeds -
Allis Chalmers HD7W Tires
Ag front 1940 - 1950
Ag rear tracks
Standard tires (ag) -
Dimensions
Weight (operating) 14,000 lbs [6350 kg]
Weight (max capacity) -
Front axle load -
Rear axle load -
Wheelbase -
Length 128 inches [325 cm]
With hitch Length: -
Width 81 inches [205 cm]
Height (hood) -
Height (cab) -
Front axle -
Rear axle -
Height (exhaust) -
Clearance (front axle) -
Clearance (rear axle) -
Clearance (drawbar) -
Test name
Test Date 1940 - 1950
Test Type Diesel 4-speed crawler
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) 57.31 hp [42.7 kW]
Drawbar fuel use (max) -
Drawbar pull (max) 12,171 lbs [5520 kg]
Max pull gear 1
Test name
Test Date October 15 - 21, 1940
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 -