John Deere 2840 VS Allis Chalmers HD3 specs comparison

John Deere 2840

General Infos

Make	John Deere
Model	2840
Country	United states
Production	From 1977  Until 1979
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	John Deere 2840 Manual

Dimensions, sizes and tires

AG front tires	7.50-18
AG rear tires	18.4-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	8700 lbs or 3946 kg
Length	160 inches [406 cm]
Width	90 inches [228 cm]
Height	-
Wheelbase	97 inches [246 cm]
Ground clearance	-
Turning radius	-
Rear tread size	61 to 90 inches
Front tread size	57.82.4 to inches
Turning radius	-

Horsepower and engin specs

Engine capacity	329 ci or 5.4 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2500 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	28 gal or 106.0 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 2840 Parts

Electrical and battery specs

Batteries number	2
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	sliding gear
Trans type	two-speed power shift
Trans gears	6 forward and 3 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	planetary
Steering	power assist
Braking system	differential hydraulic wet disc
Cabin type	Open operator station
Differentiel lock	mechanical rear

Hydraulics specifications

System	closed center
Valves	2
Pump flow	23 gpm or 87.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	12.9 gal or 48.8 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	64.86 hp or 48.4 kW
Fuel consumption	5.2 gal/hour or 19.7 l/hour
Pulling power	8,386 lbs or 3803 kg

Power take-off (PTO) specs

Claimed power	-
Real power	76.27 hp or 56.9 kW
Engine @RPM	-
PTO Clutch	hydraulic 300mm disc
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	4.8 gal/hour or 18.2 l/hour

3 point hitch specifiations

Hitch system	draft sensing
Rear hitch	II
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Allis Chalmers HD3

General Infos

Make	Allis Chalmers
Model	HD3
Country	United states
Production	From 1960  Until 1968
Price	-
Tractor type	-
Fuel	diesel
Service repair manual	Allis Chalmers HD3 Manual

Dimensions, sizes and tires

AG front tires	7-inch track
AG rear tires	7-inch track
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	7645 lbs or 3467 kg
Length	108.75 inches [276 cm]
Width	-
Height	-
Wheelbase	-
Ground clearance	-
Turning radius	-
Rear tread size	48 inches
Front tread size	48 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	175 ci or 2.9 L
Cylinders	4 cylinders
Engine power	-
Engine RPM	1650 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	Roosa-Master injection
Fuel tank size	14 gal or 53.0 L
Oil capacity	-
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	Allis Chalmers HD3 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	Power Director
Trans type	mechanical shuttle
Trans gears	4 forward and reverse
Clutch system	wet disc (Power Director)

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	mechanical clutches
Braking system	mechanical contracting band
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	open center
Valves	1 to 3
Pump flow	15 gpm or 56.8 lpm
SVC flow	-
Steering flow	-
Tank capacity	16.5 gal or 62.5 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	26.17 hp or 19.5 kW
Fuel consumption	2.6 gal/hour or 9.8 l/hour
Pulling power	8207 lbs or 3722 kg

Power take-off (PTO) specs

Claimed power	-
Real power	32.53 hp or 24.3 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	optional
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	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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