Tractorpedia.com

Ford 840

Ford 840 tractor
View Images
The Ford 840 is a utility tractor introduced in 1957 as part of the 800 Series. It was built in Highland Park, Michigan, USA. The tractor features a Ford 2.8L 4-cylinder gasoline or LP gas engine, with estimated engine power around 33.3 to 44.4 hp. It has a two-wheel drive with manual steering and optional power assist. The 840 offers a 4-speed unsynchronized gear transmission with an optional 12-speed Sherman auxiliary transmission. It includes an open operator station, mechanical expanding shoe brakes, and a rear PTO with 540 rpm. The tractor has a wheelbase of 75.18 inches and weighs between 2850 to 3400 pounds operating weight. Hydraulics are open center type with 2000 psi pressure and 4.8 gpm pump flow. Fuel capacity is 14 gallons. The 840 was available in variants including the 820, 850, and 860 models.
Ford 840Ford 800 Seriesutility tractor2.8L engine4-speed transmissiontractor specifications
Power44 hp[B]
Founded1957
Model840

Technical Specifications

Detailed specifications and technical data for Ford 840

Power

Plows:3 14-inch
Belt (claimed):40 hp (29.8 kW)

Engine

Type:gasoline, 4-cylinder 8-valve, liquid-cooled inline
Model:Ford EAF
Options:Ford 2.8L 4-cyl gasoline, Ford 2.8L 4-cyl LP gas
Rated RPM:2200
Air cleaner:oil bath
Bore/Stroke:3.90x3.60 inches (99 x 91 mm)
Compression:6.75:1 (gasoline), 8.0:1 (LP gas)
Displacement:172 ci (2.8 L)
Firing order:1-2-4-3
Oil capacity:5 qts (4.7 L)
Starter volts:6
Coolant capacity:15 qts (14.2 L)

Weight

Shipping:2850 lbs (1292 kg)
Ballasted:6700 lbs (3039 kg)
Operating:3400 lbs (1542 kg)

Capacity

Fuel:14 gal (53.0 L)
Rear axle:11 qts (10.4 L)
Hydraulic system:2 gal (7.6 L)

Variants

820:no 3-point or hydraulics
840:four-speed
850:transmission PTO
860:live PTO

Electrical

Ground:positive
Battery volts:6
Charging amps:20
Charging system:generator

Hydraulics

Type:open center
Capacity:2 gal (7.6 L)
Pressure:2000 psi (137.9 bar)
Pump flow:4.8 gpm (18.2 lpm)

Mechanical

Drive:Two-wheel drive
Brakes:Differential mechanical expanding shoe brakes
Steering:manual, power assist optional
Operator station:Open operator station

Production

Type:Utility tractor
Series:800 Series
Built in:Highland Park, Michigan, USA
Year introduced:1957

Transmission

Type:unsynchronized gear
Gears:4 forward and 1 reverse (standard), 12 forward and 3 reverse (Sherman auxiliary)
Model:Sherman
Notes:The Sherman under-over auxiliary transmission was available as a factory option on the 840. Tractors equipped with the transmission were marked 840S.
Clutch:dry disc
Options:4-speed unsynchronized gear, 12-speed unsynchronized gear
Oil type:SAE 80 Mild EP
Oil capacity:8 qts (7.6 L)

Tractor hitch

Control:position and draft control
Rear Type:I
Rear lift:1250 lbs (567 kg)

Serial Numbers

1954:1
1955:10615
1956:77271
1957:116368
Serial number location:On the left-hand side of the transmission housing behind the starter.

Dimensions & Tires

Width:64.75 inches (164 cm)
Height:59.3 inches (150 cm)
Length:121.8 inches (309 cm)
Rear tire:12-28
Wheelbase:75.18 inches (190 cm)
Front tire:6.00-16
Rear tread:52 to 76 inches (132 to 193 cm)
Front tread:52 to 76 inches (132 to 193 cm)
Ground clearance:21 inches (53 cm)

Power Take-off (PTO)

Rear PTO:transmission
Rear PTO Type:540 (1.125)

Related Models

Ford 841

Model:841

Ford 650

Model:650