Jacobsen lawn tractors Chief-O-Matic 1000
Power
10 hp
Production
1966
Engine
Gasoline, 1-cylinder
Transmission
Belt-driven hydrostatic
Drive
2WD
From the same series:
Introduction
Jacobsen Chief-O-Matic 1000 Garden Tractor
The Jacobsen Chief-O-Matic 1000 is a garden tractor produced in 1966 in Racine, Wisconsin, USA. This model represents a specific entry in the Chief-O-Matic series, designed for residential and light-duty property maintenance.
Engine and Powertrain
The tractor is powered by a Kohler K241 1-cylinder, air-cooled gasoline engine. With a displacement of 390 cc (23.85 ci) and a bore/stroke ratio of 83 x 73 mm, it delivers a rated power of 10 hp (7.5 kW) at 3600 RPM. The engine utilizes a dry-type air cleaner and operates on a 12-volt electrical system with negative ground.
Transmission and Operation
The Chief-O-Matic 1000 is equipped with a belt-driven hydrostatic transmission, offering infinite forward and reverse speeds for precise control. The mechanical configuration features two-wheel drive, manual steering, and mechanical band brakes. It includes an independent mid-PTO engaged via a manual clutch, which allows for the operation of various attachments including mower decks of 36, 42, or 48 inches.
Dimensions and Chassis
The tractor features an open operator station with a 42-inch wheelbase and an overall length of 61 inches. The width measures 33 inches, with a front tread of 30 inches and a rear tread of 31.5 inches. The machine provides a frame ground clearance of 11.75 inches, facilitating operation over uneven surfaces. It is fitted with lawn and turf tires, measuring 16x4.80-8 or 16x6.50-8 at the front, and 22x6-12 or 22x8-12 at the rear.
Conclusion
The Jacobsen Chief-O-Matic 1000 is a compact, utility-focused garden tractor. Its combination of a hydrostatic transmission and a 10 hp Kohler engine makes it suitable for standard lawn care and small-scale property maintenance tasks characteristic of its era.
Production Information of Jacobsen lawn tractors, Chief-O-Matic 1000
- Garden tractor
- Built in Racine, Wisconsin, USA
| Manufacturer | Jacobsen |
|---|
Dimension and Tires Information of Jacobsen lawn tractors, Chief-O-Matic 1000
| 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] |
| Lawn/turf front | 16x4.80-8 |
|---|---|
| Lawn/turf rear | 22x8-12 |
| Lawn/turf rear | 22x6-12 |
| Lawn/turf front | 16x6.50-8 |
Engine Specifications of Jacobsen lawn tractors, Chief-O-Matic 1000
- Kohler K241
- Air-cooled horizontal-shaft
- Gasoline
- 1-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 390 cc [23.85 ci] |
| Air cleaner | Dry |
| Bore/Stroke | 3.25x2.875 inches [83 x 73 mm] |
| Oil capacity | 2.5 qts [2.4 L] |
| Starter | Electric |
| Rated RPM | 3600 |
| Power | 10 hp [7.5 kW] |
Transmission Information of Jacobsen lawn tractors, Chief-O-Matic 1000
Transmission variants 1
| Type | Belt-driven hydrostatic |
|---|---|
| Gears | Infinite forward and reverse |
Mechanical Specs of Jacobsen lawn tractors, Chief-O-Matic 1000
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Power Information of Jacobsen lawn tractors, Chief-O-Matic 1000
| Mid PTO | Independent |
|---|---|
| Clutch | Manual |
Electrical System of Jacobsen lawn tractors, Chief-O-Matic 1000
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 10 HP, the Jacobsen lawn tractors Chief-O-Matic 1000 sits between Chief-O-Matic 800 (8 HP) and Chief-O-Matic 1200 (12 HP) in Jacobsen lawn tractors's range. Its power puts it in the 87th percentile of 1960s models in our database (550 machines).
Frequently asked questions
How much horsepower does the Jacobsen lawn tractors Chief-O-Matic 1000 have?
The Jacobsen lawn tractors Chief-O-Matic 1000 delivers 10 HP.
What years was the Jacobsen lawn tractors Chief-O-Matic 1000 produced?
The Jacobsen lawn tractors Chief-O-Matic 1000 was produced in 1966.
What engine does the Jacobsen lawn tractors Chief-O-Matic 1000 have?
The Jacobsen lawn tractors Chief-O-Matic 1000 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Jacobsen lawn tractors Chief-O-Matic 1000 use?
The Jacobsen lawn tractors Chief-O-Matic 1000 uses a Belt-driven hydrostatic transmission.
Is the Jacobsen lawn tractors Chief-O-Matic 1000 4WD?
The Jacobsen lawn tractors Chief-O-Matic 1000 is available in 2WD.