John Deere lawn tractors

John Deere F912

The John Deere F912 is a front-mount mower lawn tractor produced from 1987 to 1990 as part of the F900 Series. It features a 20 hp Yanmar 3-cylinder liquid-cooled gasoline engine with 658 cc displacement. The hydrostatic transmission offers infinite forward and reverse speeds. The tractor has two-wheel drive with a mechanical front differential lock, power steering, and drum brakes. It includes an open operator station with optional ROPS. The F912 has a 5.5 gallon fuel tank and weighs 1266 lbs. Attachments include various front-mount mower decks, blades, and snow blowers. It was built in Horicon, Wisconsin, USA.

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ModelF912

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Technical Specifications

Detailed specifications and technical data for John Deere F912

Engine

Type	gasoline
Model	Yanmar 3TG66
Power	20 hp (14.9 kW)
Torque	32.3 lb-ft (43.8 Nm)
Cooling	liquid-cooled horizontal-shaft inline
Starter	electric
Cylinders	3-cylinder
Fuel tank	5.5 gal (20.8 L)
Torque RPM	2000
Air cleaner	dry
Bore/Stroke	2.60x2.53 inches (66 x 64 mm)
Displacement	658 cc (40.2 ci)
Oil capacity	2.6 qts (2.5 L)
Starter volts	12
Coolant capacity	4.7 qts (4.4 L)

Dimensions

Width	42.8 inches (108 cm)
Length	85.2 inches (216 cm)
Weight	1266 lbs (574 kg)
Rear tire	16x6.5-8
Wheelbase	56.3 inches (143 cm)
Front tire	20x8.00-10
Height (ROPS)	78 inches (198 cm)
Height (steering wheel)	50.5 inches (128 cm)

Electrical

Ground	negative
Battery volts	12
Charging amps	20
Charging system	alternator

Mechanical

Drive	Two-wheel drive
Brakes	Drum brakes
Power steering	yes
Operator station	Open operator station. ROPS available.
Differential lock	mechanical front

Production

Type	Front-mount mower
Series	F900 Series
Built in	Horicon, Wisconsin, USA
Years produced	1987 - 1990

Attachments

54" Blade	front-mount, 54 inches width (137 cm), 18 inches height (45 cm), 14 inches lift (35 cm), angling 30°, 3.5 inches cut (8 cm), weight 165 lbs (74 kg), hydraulic-lift, hydraulic-angle
46" Snow blower	46 inches width (116 cm), single-stage, front-mount, hydraulic-lift
47" Snow blower	47 inches width (119 cm), two-stage, front-mount, hydraulic-lift
50" front-mount mower deck	50 inches (127 cm), total width 100 inches (254 cm), 3-blade, hydraulic lift, right-discharge, cut height 1.5 to 4.5 inch (3 to 11 cm)
60" front-mount mower deck	60 inches (152 cm), total width 106 inches (269 cm), 3-blade, hydraulic lift, right-discharge, cut height 1.5 to 4.5 inch (3 to 11 cm)
60" front-mount mower deck (rear-discharge)	60 inches (152 cm), total width 65.2 inches (165 cm), 3-blade, hydraulic lift, rear-discharge, cut height 1 to 6 inch (2 to 15 cm), weight 330 lbs (149 kg)

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