Jacobsen lawn tractors

Jacobsen Chief-O-Matic 1200

The Jacobsen Chief-O-Matic 1200 is a garden tractor introduced in 1966, built in Racine, Wisconsin, USA. It features a 12 hp Kohler K301 476cc 1-cylinder air-cooled gasoline engine, a belt-driven hydrostatic transmission with infinite forward and reverse gears, and two-wheel drive with manual steering and mechanical band brakes. The tractor has an open operator station and various attachments available including mid-mount mower decks, snowblowers, blades, and a front-end loader.

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ModelChief-O-Matic 1200

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Technical Specifications

Detailed specifications and technical data for Jacobsen Chief-O-Matic 1200

Engine

Type	gasoline
Model	Kohler K301
Power	12 hp (8.9 kW)
Cooling	air-cooled
Starter	electric
Cylinders	1-cylinder horizontal-shaft-valve
Rated RPM	3600
Air cleaner	dry
Bore/Stroke	3.375x3.25 inches (86 x 83 mm)
Displacement	476 cc (29.07 ci)
Starter volts	12

Features

Drive	Two-wheel drive
Brakes	Mechanical band brakes
Steering	Manual steering
Operator station	Open operator station

Dimensions

Width	33 inches (83 cm)
Length	61 inches (154 cm)
Wheelbase	42 inches (106 cm)
Rear tread	31.5 inches (80 cm)
Front tread	30 inches (76 cm)
Height (hood)	34.5 inches (87 cm)
Ground clearance	11.75 inches (frame) (29 cm)
Clearance (rear axle)	6.25 inches (15 cm)
Clearance (front axle)	8.75 inches (22 cm)
Height (steering wheel)	39 inches (99 cm)

Electrical

Ground	negative
Battery volts	12

Production

Type	Garden tractor
Built in	Racine, Wisconsin, USA
Manufacturer	Jacobsen
Year introduced	1966

Attachments

42" Blade	Jacobsen, front-mount, 42 inches width (106 cm)
Danco JC 600 Loader	300 lbs lift (full at pin) (136 kg), 52 inches clearance (level) (132 cm), Bucket width: 34 inches (86 cm)
36" mid-mount mower deck	Jacobsen 59730, 36 inches (91 cm), 2-blade, manual lift, left-discharge, Cut height: 1.5 to 4 inch (3 to 10 cm)
42" mid-mount mower deck	Jacobsen 59736, 42 inches (106 cm), 3-blade, manual lift, right-discharge, Cut height: 1.25 to 3 inch (3 to 7 cm)
48" mid-mount mower deck	Jacobsen 59782, 48 inches (121 cm), 3-blade, manual lift, right-discharge
36" Snow blower two-stage	Jacobsen 597XX, 36 inches width (91 cm), front-mount, manual-lift
36" Snow blower single-stage	Jacobsen 596XX, 36 inches width (91 cm), front-mount, manual-lift