J.I. Case 446 (1972-1976)

J.I. Case 446 (1972-1976)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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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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