Introduction
J.I. Case 446 Garden Tractor
The J.I. Case 446 is a garden tractor produced between 1972 and 1988 in Winneconne, Wisconsin, USA. Designed for residential and light-duty property maintenance, this model is part of the 444 series and is engineered to accommodate mower decks of 44 or 48 inches.
Engine and Performance
The tractor is powered by a 16 horsepower (11.9 kW) air-cooled, horizontal-shaft engine with a displacement of 709 cc (43.3 ci). It operates at a rated speed of 3600 RPM. The engine features a 7:1 compression ratio and requires an oil capacity of 1.9 liters (2 quarts), with maintenance intervals recommended every 25 hours.
Transmission and Drive System
The 446 utilizes a HY-Drive hydraulic transmission system. This setup employs a fixed-displacement hydraulic pump to power a two-speed transaxle, providing infinite forward and reverse speed control across two operational ranges. The unit is configured as a two-wheel-drive machine.
Hydraulics and Mechanical Controls
The hydraulic system is of the open-center type, featuring a pump flow capacity of 8 gpm (30.3 lpm) and two valves to manage attachments. Mechanical control is facilitated through manual steering and mechanical band brakes, ensuring operator control during standard lawn maintenance tasks.
Dimensions and Electrical
Built on a 46-inch (116 cm) wheelbase, the tractor has an overall length of 72 inches (182 cm) and a width of 41 inches (104 cm). It features a shipping weight of 770 lbs (349 kg). The electrical system is powered by a 12-volt battery with a 24 AH capacity, utilizing a negative ground configuration.
Conclusion
The J.I. Case 446 is a specialized garden tractor that offers durability and hydraulic flexibility for property owners. Its combination of a high-torque 16 hp engine and a versatile hydraulic drive system makes it suitable for mowing and light utility work in a variety of garden environments.
Production Information of J.I. Case lawn tractors, 446
- Garden tractor
- Built in Winneconne, Wisconsin, USA
| Manufacturer | J.I. Case |
|---|
Dimension and Tires Information of J.I. Case lawn tractors, 446
| Ground clearance | 11 inches [27 cm] |
|---|---|
| Wheelbase | 46 inches [116 cm] |
| Height (hood) | 38.5 inches [97 cm] |
| Height (steering wheel) | 43.3 inches [109 cm] |
| Length | 72 inches [182 cm] |
| Front tread | 33.5 inches [85 cm] |
| Shipping weight | 770 lbs [349 kg] |
| Width | 41 inches [104 cm] |
| Rear tread | 31.5 inches [80 cm] |
| Lawn/turf front | 6.50-8 |
|---|---|
| Lawn/turf rear | 8.00-16 |
Engine Specifications of J.I. Case lawn tractors, 446
- Air-cooled horizontal-shaft
| Exhaust valve clearance | 0.013 inches [0.330 mm] |
|---|---|
| Compression | 7:1 |
| Rated RPM | 3600 |
| Sparkplug | Champion RH18Y |
| Starter volts | 12 |
| Displacement | 709 cc [43.3 ci] |
| Oil capacity | 2 qts [1.9 L] |
| Power (gross) | 16 hp [11.9 kW] |
| Oil change | 25 h |
| Bore/Stroke | 3.25x2.625 inches [83 x 67 mm] |
| Intake valve clearance | 0.005 inches [0.127 mm] |
| Point gap | 0.021 inches [0.533 mm] |
| Sparkplug gap | 0.025 inches [0.635 mm] |
Cold
Cold
Transmission Information of J.I. Case lawn tractors, 446
Transmission variants 1
- The HY-Drive uses a fixed-displacement hydraulic pump to power a two-speed transaxle.
| Transmission | HY-Drive |
|---|---|
| Type | Hydraulic drive |
| Gears | Infinite forward and reverse (2-range) |
Transmission variants 2
| 4 | Range shift |
|---|---|
| 3 | Throttle |
| 1 | Brake |
| 5 | Parking brake |
| 2 | Forward/reverse |
Mechanical Specs of J.I. Case lawn tractors, 446
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Hydraulics Specifications of J.I. Case lawn tractors, 446
| Type | Open center |
|---|---|
| Pump flow | 8 gpm [30.3 lpm] |
| Capacity | 1.6 gal [6.1 L] |
| Valves | 2 |
Electrical System of J.I. Case lawn tractors, 446
| Ground | Negative |
|---|---|
| Battery AH | 24 |
| Charging amps | 15 |
| Battery volts | 12 |
Where it sits
Its power puts it in the 95th percentile of 1970s models in our database (1008 machines).
Frequently asked questions
How much horsepower does the J.I. Case lawn tractors 446 have?
The J.I. Case lawn tractors 446 delivers 16 HP.
What years was the J.I. Case lawn tractors 446 produced?
The J.I. Case lawn tractors 446 was produced in 1972-1988.
What transmission does the J.I. Case lawn tractors 446 use?
The J.I. Case lawn tractors 446 uses a HY-Drive transmission.
How much does the J.I. Case lawn tractors 446 weigh?
The J.I. Case lawn tractors 446 weighs 770 lbs [349 kg].
Is the J.I. Case lawn tractors 446 4WD?
The J.I. Case lawn tractors 446 is available in 2WD.