John Deere 4840 VS Allis Chalmers HD3 specs comparison

John Deere 4840

General Infos

Make	John Deere
Model	4840
Country	United states
Production	From 1978  Until 1982
Price	-
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	John Deere 4840 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	24.5-32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	14,900 lbs or 6758 kg
Length	177 inches [449 cm]
Width	96 inches [243 cm]
Height	117 inches [297 cm]
Wheelbase	118.5 inches [300 cm]
Ground clearance	-
Turning radius	14.7 feet [4.5 m]
Rear tread size	60 to 131.5 inches
Front tread size	58 to 100 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	466 ci or 7.6 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2200 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	103 gal or 389.9 L
Oil capacity	-
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 4840 Parts

Electrical and battery specs

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

Clutch and gearbox specs

Trans system	John Deere PowerShift
Trans type	full power shift
Trans gears	8 forward and 4 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	power
Braking system	differential hydraulic wet disc
Cabin type	Sound-Gard cab
Differentiel lock	pedal-actuated hydraulic

Hydraulics specifications

System	closed center
Valves	2 or 3
Pump flow	23 gpm or 87.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	16.5 gal or 62.5 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	157 hp or 117.1 kW
Drawbar horsepower	151.21 hp or 112.8 kW
Fuel consumption	11.3 gal/hour or 42.8 l/hour
Pulling power	17,307 lbs or 7850 kg

Power take-off (PTO) specs

Claimed power	180 hp or 134.2 kW
Real power	181.63 hp or 135.4 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	11.5 gal/hour or 43.5 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III,IIIN
Rear hitch lift	8,295 lbs or 3762 kg
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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