John Deere 840 VS David Brown 30TD specs comparison

John Deere 840

General Infos

Make	John Deere
Model	840
Country	United states
Production	From 1976  Until 1986
Price	-
Tractor type	Utility tractor
Fuel	diesel
Service repair manual	John Deere 840 Manual

Dimensions, sizes and tires

AG front tires	6.50-16
AG rear tires	12.4-32
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	5004 lbs or 2269 kg
Length	138 inches [350 cm]
Width	65.4 inches [166 cm]
Height	94.1 inches [239 cm]
Wheelbase	74.4 inches [188 cm]
Ground clearance	-
Turning radius	-
Rear tread size	53.5 to 73.2 inches
Front tread size	49.6 to 79.5 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	179 ci or 2.9 L
Cylinders	3 cylinders
Engine power	37.5 hp or 28.0 kW
Engine RPM	2400 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	direct injection
Fuel tank size	20.6 gal or 78.0 L
Oil capacity	7.4 qts or 7.0 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	John Deere 840 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	33 amps

Clutch and gearbox specs

Trans system	-
Trans type	two-speed power shift
Trans gears	16 forward and 8 reverse
Clutch system	dry disc

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	planetary
Steering	manual
Braking system	hydraulic wet disc
Cabin type	Four-post ROPS
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	-
Pump flow	6.1 gpm or 23.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	10.8 gal or 40.9 L
Hydraulic pressure	-
Max flow	-

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	33.5 hp or 25.0 kW
Real power	-
Engine @RPM	1000@2070 (rpm)
PTO Clutch	dry disc
Rear PTO	live
Rear PTO RPM	540 (rpm)
Front PTO	optional
Front PTO RPM	1000 (rpm)
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	-

3 point hitch specifiations

Hitch system	-
Rear hitch	II/I
Rear hitch lift	4878 lbs or 2212 kg
Front hitch	-
Front hitch lift	-

David Brown 30TD

General Infos

Make	David Brown
Model	30TD
Country	United states
Production	From 1953  Until 1959
Price	-
Tractor type	-
Fuel	-
Service repair manual	David Brown 30TD Manual

Dimensions, sizes and tires

AG front tires	-
AG rear tires	-
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	48G Shipping:
Length	113 inches 287 cm
Width	71 inches 180 cm
Height	-
Wheelbase	-
Ground clearance	-
Turning radius	-
Rear tread size	-
Front tread size	-
Turning radius	8150 lbs 3696 kg

Horsepower and engin specs

Engine capacity	-
Cylinders	4 cylinders
Engine power	36 hp 26.8 kW
Engine RPM	1800 (rpm)
Torque	-
Torque RPM	-
Fuel type	-
Fuel injection	-
Fuel tank size	17.4 gal 65.9 L
Oil capacity	12 qts 11.4 L
Oil change	-
Starter motor	electric
Starter volts	12 V
Parts And Accessories	David Brown 30TD Parts

Electrical and battery specs

Batteries number	1
Batteries voltage	12 V
Battries Amps	120 amps
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	-
Trans type	gear
Trans gears	6 forward and 2 reverse
Clutch system	254mm dry disc

Cabine and mechanical specs

Wheel drive	crawler
Final drive	-
Steering	-
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	24.1 hp 18.0 kW
Drawbar horsepower	-
Fuel consumption	-
Pulling power	-

Power take-off (PTO) specs

Claimed power	-
Real power	-
Engine @RPM	516@1600 (rpm)
PTO Clutch	-
Rear PTO	-
Rear PTO RPM	540 (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	-

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