Allis Chalmers HD3 VS New Holland 7840 specs comparison

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	-

New Holland 7840

General Infos

Make	New Holland
Model	7840
Country	United states
Production	From 1996  Until 1998
Price	35,650  USD
Tractor type	Row Crop tractor
Fuel	diesel
Service repair manual	New Holland 7840 Manual

Dimensions, sizes and tires

AG front tires	10.00-16
AG rear tires	18.4-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	8,076 lbs or 3663 kg
Length	176 inches [447 cm]
Width	83 inches [210 cm]
Height	110 inches [279 cm]
Wheelbase	103 inches [261 cm]
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	401 ci or 6.6 L
Cylinders	6 cylinders 12 valves
Engine power	-
Engine RPM	2100 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	57.5 gal or 217.6 L
Oil capacity	22.1 qts or 20.9 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	New Holland 7840 Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	-
Cold Amps	800
Ground force	negative
Charging system	alternator
Charging Volts	-
Charging Amps	55 amps

Clutch and gearbox specs

Trans system	ElectroShift/Pulse Command
Trans type	four-speed power shift
Trans gears	16 forward and reverse
Clutch system	wet disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	inboard planetary
Steering	hydrostatic power
Braking system	mechanical (S)
Cabin type	Two-post foldable ROPS with flat-deck platform
Differentiel lock	electro-hydraulic (SLE)

Hydraulics specifications

System	open center
Valves	1 to 4
Pump flow	17.4 gpm or 65.9 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	75.2 hp or 56.1 kW
Fuel consumption	5.9 gal/hour or 22.3 l/hour
Pulling power	-

Power take-off (PTO) specs

Claimed power	90 hp or 67.1 kW
Real power	90.4 hp or 67.4 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	5.3 gal/hour or 20.1 l/hour

3 point hitch specifiations

Hitch system	Position control and top-link draft sensing
Rear hitch	II
Rear hitch lift	6,210 lbs or 2816 kg
Front hitch	-
Front hitch lift	-

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