The J.I. Case 446 is a 2WD garden tractor from the 400 series. This tractor was manufactured by J.I. Case in Winneconne, Wisconsin, USA from 1972 to 1988. This first generation was manufactured from 1972 to 9176. The J.I. Case 446 is equipped with a 0.0 L (2.6 cu·in) two-cylinder gasoline engine and a hydraulic drive transmission with infinite forward and reverse (2-range) gears.
The J.I. Case 446 garden tractor used the Onan B43M engine. It is a 710 cm2, (43.3 cu·in) two-cylinder natural aspirated gasoline engine with 83.0 mm (3.27 in) of the cylinder bore and 67.0 mm (2.64 in) of the piston stroke. The compression ratio rating is 7.0:1. This engine produced 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm of output power.
The J.I. Case 446 is equipped with manual steering, mechanical band brakes, an open operator station, and 11.4 liters (3 US gal.; 2.5 Imp. gal) fuel tank.
Following attachments are available for the J.I. Case 446 garden tractor:
- Mid-mount J.I. Case 44 in (1,110 mm) mower deck
- Mid-mount J.I. Case 48 in (1,210 mm) mower deck
- Front-mount J.I. Case 54 in (1,370 mm) blade
- Front-mount J.I. Case 48 in (1,210 mm) snow blower
J.I. Case 446 Specifications
| General Specifications | |
| Model | J.I. Case 446 |
| Length | 1,820 mm (71.7 in) |
| Width | 1,040 mm (40.9 in) |
| Height (steering wheel) | 1,090 mm (42.9 in) |
| Wheel base | 1,210 mm (47.6 in) |
| Ground clearance | 270 mm (10.6 in) |
| Weight (shipping) | 350 kg (772 lbs) |
| Fuel tank capacity | 11.4 liters (3 US gal.; 2.5 Imp. gal) |
| Battery | 12V, 24Ah |
| Cabin type | Open operator station |
| Engine | |
| Engine model | Onan B43M |
| Engine type | Four-stroke, air-cooled, inline |
| Cylinders | 2 |
| Fuel type | Gasoline |
| Displacement | 0.7 L, 710 cm2, (43.3 cu·in) |
| Bore and stroke | 83.0 mm X 67.0 mm (3.27 in X 2.64 in) |
| Compression ratio | 7.0:1 |
| Horsepower | 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm |
| Starter | Electric |
| Oil capacity: | 1.9 L (2 US. qt, 1.7 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | Mechanical band |
| Transmission model | HY-Drive |
| Transmission type | Hydraulic drive |
| Gears | Infinite forward and reverse (2-range) |
| Speed | Forward: 14.0 kmh (8.7 mph) Reverse: 14.0 kmh (8.7 mph) |
| Tires | |
| Front tires | Ag: 6.50-8 |
| Rear tires | Ag: 8.00-16 |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | 6.1 L (1.6 US. gal, 1.3 Imp. gal.) |
| Valves | 2 |
| Pump flow | 8.0 gpm (30.3 lpm) |
| J.I. Case 446 serial numbers | |
| 1972 | 9668002 |
| 1973 | 9678031 |
| 1974 | 9694673 |
| 1975 | 9713265 |
| 1976 | 9727857 |
| 1977 | 9740617 |
| 1978 | 9754759 |
| 1979 | 9767590 |
| 1980 | 9785820 |
| 1981 | 14009950 |
| 1982 | 14025407 |
| 1983 | 14040936 |
| 1984 | 14060091 |
| 1985 | 14073621 |
| 1986 | 14095530 |
| 1987 | 1412151 |
| 1988 | 14112874 |
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