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John Deere 840

John Deere 840 tractor
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The John Deere 840 was an industrial scraper tractor produced from 1959 to 1962. It was based on the model 830 tractor and initially used a Hancock 7E2 scraper until serial number 8400900, after which a John Deere Model 400 scraper was used. The first 63 units were assembled by Hancock before Deere took over production. It features a 7.7L 2-cylinder diesel engine, 6-speed gear transmission, and two-wheel drive with power steering. The tractor has an open operator station and weighs between 10,400 and 23,200 pounds depending on configuration.
John Deere 840industrial tractor7.7L diesel engine6-speed transmissionscraper tractortractor specifications
Power-
Founded-
Model840

Technical Specifications

Detailed specifications and technical data for John Deere 840

Power

Belt (claimed):75.6 hp (56.4 kW)
Drawbar (claimed):69.7 hp (52.0 kW)

Engine

Type:John Deere 7.7L 2-cyl diesel
Details:John Deere diesel, 2-cylinder, liquid-cooled
Bore/Stroke:6.125x8.00 inches (156 x 203 mm)
Displacement:470.7 ci (7.7 L)
Firing order:1-2

Mechanical

Drive:Two-wheel drive
Steering:power
Operator station:Open operator station

Production

Type:Industrial tractor
Notes:The 840 was an industrial scraper based on the model 830 tractor. A Hancock 7E2 scraper was used until number 8400900 when a John Deere Model 400 scraper was used. The first 63 were assembled by Hancock, then Deere took over production.
Original price:$6,625 in 1961
Years produced:1959 - 1962

Transmission

Type:gear
Gears:6 forward and 1 reverse
Clutch:dry disc

Dimensions & Tires

Weight:10,400 to 23,200 pounds
Ag rear tires:18-26
Ag front tires:8.25-20
Weight with scraper:23,200 lbs (10523 kg)

Related Models

John Deere 5010I

Model:5010I

John Deere 830

Model:830