Jacobsen lawn tractors Chief-O-Matic 1200
Power
12 hp
Production
1966
Engine
Gasoline, 1-cylinder horizontal-shaft-valve
Transmission
Belt-driven hydrostatic
Drive
2WD
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Introduction
Jacobsen Chief-O-Matic 1200 Garden Tractor
The Jacobsen Chief-O-Matic 1200 is a garden tractor model manufactured in Racine, Wisconsin, USA. Introduced in 1966, this machine was designed for residential lawn maintenance and versatile garden tasks during the mid-1960s.
Engine and Powertrain
The tractor is powered by a Kohler K301 gasoline engine. This 476 cc (29.07 ci) single-cylinder, air-cooled unit features a horizontal shaft and produces 12 horsepower (8.9 kW) at a rated 3600 RPM. The engine uses a dry-type air cleaner and is equipped with a 12-volt electric starter system.
Transmission and Drive System
Power is delivered to the ground via a belt-driven hydrostatic transmission. This system provides infinite forward and reverse gears, allowing for smooth speed adjustment without manual shifting. The tractor utilizes a two-wheel drive configuration.
Mechanical and Dimensions
The machine features manual steering and mechanical band brakes. It is built with an open operator station. Its physical footprint includes a 42-inch (106 cm) wheelbase and a total length of 61 inches (154 cm), with a width of 33 inches (83 cm). The tractor offers a frame ground clearance of 11.75 inches (29 cm), providing adequate space for various terrain conditions.
Implement Compatibility
The Chief-O-Matic 1200 is designed to accommodate various mowing decks, with options available in 36, 42, and 48-inch cutting widths, allowing the user to select the appropriate deck size for different lawn areas.
Conclusion
The Jacobsen Chief-O-Matic 1200 is a compact and functional garden tractor well-suited for standard property maintenance and lawn care applications. Its hydrostatic transmission and reliable Kohler engine architecture make it a representative example of 1960s garden tractor engineering.
Production Information of Jacobsen lawn tractors, Chief-O-Matic 1200
- Garden tractor
- Built in Racine, Wisconsin, USA
| Manufacturer | Jacobsen |
|---|
Dimension and Tires Information of Jacobsen lawn tractors, Chief-O-Matic 1200
| Clearance (front axle) | 8.75 inches [22 cm] |
|---|---|
| Wheelbase | 42 inches [106 cm] |
| Height (hood) | 34.5 inches [87 cm] |
| Height (steering wheel) | 39 inches [99 cm] |
| Length | 61 inches [154 cm] |
| Clearance (rear axle) | 6.25 inches [15 cm] |
| Ground clearance | 11.75 inches (frame) [29 cm] |
| Width | 33 inches [83 cm] |
| Rear tread | 31.5 inches [80 cm] |
| Front tread | 30 inches [76 cm] |
Engine Specifications of Jacobsen lawn tractors, Chief-O-Matic 1200
- Kohler K301
- Air-cooled
- Gasoline
- 1-cylinder horizontal-shaft-valve
| Starter volts | 12 |
|---|---|
| Displacement | 476 cc [29.07 ci] |
| Air cleaner | Dry |
| Bore/Stroke | 3.375x3.25 inches [86 x 83 mm] |
| Starter | Electric |
| Rated RPM | 3600 |
| Power | 12 hp [8.9 kW] |
Transmission Information of Jacobsen lawn tractors, Chief-O-Matic 1200
Transmission variants 1
| Type | Belt-driven hydrostatic |
|---|---|
| Gears | Infinite forward and reverse |
Mechanical Specs of Jacobsen lawn tractors, Chief-O-Matic 1200
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Electrical System of Jacobsen lawn tractors, Chief-O-Matic 1200
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 12 HP, the Jacobsen lawn tractors Chief-O-Matic 1200 sits just above Chief-O-Matic 1000 (10 HP) in Jacobsen lawn tractors's range. Its power puts it in the 97th percentile of 1960s models in our database (550 machines).
Frequently asked questions
How much horsepower does the Jacobsen lawn tractors Chief-O-Matic 1200 have?
The Jacobsen lawn tractors Chief-O-Matic 1200 delivers 12 HP.
What years was the Jacobsen lawn tractors Chief-O-Matic 1200 produced?
The Jacobsen lawn tractors Chief-O-Matic 1200 was produced in 1966.
What engine does the Jacobsen lawn tractors Chief-O-Matic 1200 have?
The Jacobsen lawn tractors Chief-O-Matic 1200 is powered by a Gasoline, 1-cylinder horizontal-shaft-valve engine.
What transmission does the Jacobsen lawn tractors Chief-O-Matic 1200 use?
The Jacobsen lawn tractors Chief-O-Matic 1200 uses a Belt-driven hydrostatic transmission.
Is the Jacobsen lawn tractors Chief-O-Matic 1200 4WD?
The Jacobsen lawn tractors Chief-O-Matic 1200 is available in 2WD.