Allis Chalmers HD15 VS David Brown 850 specs comparison

Allis Chalmers HD15

General Infos

Make	Allis Chalmers
Model	HD15
Country	United states
Production	From 1951  Until 1955
Price	-
Tractor type	Agricultural Crawler tractor
Fuel	diesel
Service repair manual	Allis Chalmers HD15 Manual

Dimensions, sizes and tires

AG front tires	20-inch tracks
AG rear tires	20-inch tracks
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	27850 lbs or 12632 kg
Length	181 inches [459 cm]
Width	96.75 inches [245 cm]
Height	95 inches [241 cm]
Wheelbase	-
Ground clearance	14.375 inches [36 cm]
Turning radius	-
Rear tread size	74 inches
Front tread size	74 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	426 ci or 7.0 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	1600 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	91.5 gal or 346.3 L
Oil capacity	20 qts or 18.9 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Allis Chalmers HD15 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	6 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	constant mesh
Trans type	-
Trans gears	6 forward and 3 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	hydraulic steering clutches
Braking system	-
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	82 hp or 61.1 kW
Drawbar horsepower	104.4 hp or 77.9 kW
Fuel consumption	-
Pulling power	29400 lbs or 13335 kg

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	-
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	-
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

David Brown 850

General Infos

Make	David Brown
Model	850
Country	United states
Production	From 1960  Until 1965
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	David Brown 850 Manual

Dimensions, sizes and tires

AG front tires	5.00-15
AG rear tires	10-28
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	3750 lbs or 1701 kg
Length	113.5 inches [288 cm]
Width	-
Height	-
Wheelbase	75.25 inches [191 cm]
Ground clearance	-
Turning radius	-
Rear tread size	52/56/60/64/68/72 inches
Front tread size	52/56/60/64/68/72 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	154 ci or 2.5 L
Cylinders	4 cylinders
Engine power	35 hp or 26.1 kW
Engine RPM	2000 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	10.6 gal or 40.1 L
Oil capacity	10.1 qts or 9.6 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	David Brown 850 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	-
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	unsynchronized gear
Trans gears	6 forward and 2 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	spur gear
Steering	manual
Braking system	differential mechanical expanding shoe
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	-
Pump flow	-
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	30 hp or 22.4 kW
Drawbar horsepower	27.64 hp or 20.6 kW
Fuel consumption	3.0 gal/hour or 11.4 l/hour
Pulling power	-

Power take-off (PTO) specs

Claimed power	33 hp or 24.6 kW
Real power	28.52 hp or 21.3 kW
Engine @RPM	540@1800 (rpm)
PTO Clutch	dry disc
Rear PTO	transmission
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	2.6 gal/hour or 9.8 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	I
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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