The J.I. Case 646 is a 2WD industrial tractor from the 600 series. This tractor was manufactured by J.I. Case from 1972 to 1980. The J.I. Case 646 is equipped with a 0.8 L (49.8 cu·in) two-cylinder gasoline engine and a hydrostatic transmission with infinite (2-range) forward and reverse gears.
The J.I. Case 646 industrial tractor used the Onan CCKA engine. It is a 0.8 L, 816 cm2, (49.8 cu·in) two-cylinder natural aspirated gasoline engine with 83.0 mm (3.27 in) of the cylinder bore and 76.0 mm (2.99 in) of the piston stroke. The compression ratio rating is 7.0:1. This engine produced 16.7 PS (12.3 kW; 16.5 HP) at 3,600 rpm of output power.
The J.I. Case 646 is equipped with manual steering, mechanical band brakes, open operator station and 18.9 liters (5 US gal.; 4.2 Imp. gal) fuel tank.
Following attachments are available for the J.I. Case 646 industrial tractor:
- Mid-mount J.I. Case 1,110 mm (44 in) mower deck with 3-blade
- Mid-mount J.I. Case 1,210 mm (48 in) mower deck with 3-blade
- Front-mount J.I. Case loader
J.I. Case 646 Specifications
| General Specifications | |
| Model | J.I. Case 646 |
| Length | 2,740 mm (107.9 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 | 200 mm (7.9 in) |
| Weight | 539 kg (1,188 lbs) |
| Fuel tank capacity | 18.9 liters (5 US gal.; 4.2 Imp. gal) |
| Battery | 12V, 32Ah |
| Cabin type | Open operator station |
| Engine | |
| Engine model | Onan CCKA |
| Engine type | Four-stroke, air-cooled, V |
| Cylinders | 2 |
| Fuel type | Gasoline |
| Displacement | 0.8 L, 816 cm2, (49.8 cu·in) |
| Bore and stroke | 83.0 mm X 76.0 mm (3.27 in X 2.99 in) |
| Compression ratio | 7.0:1 |
| Horsepower | 16.7 PS (12.3 kW; 16.5 HP) at 3,600 rpm |
| Starter | Electric |
| Oil capacity: | 3.8 L (4 US. qt, 3.3 Imp. qt.) |
| Spark plug | Champion H8 |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | Mechanical band |
| Transmission model | Hy-Drive |
| Transmission type | Hydrostatic |
| Gears | Infinite (2-range) forward and reverse |
| Speed | Forward: 10.5 kmh (6.5 mph) Reverse: 10.5 kmh (6.5 mph) |
| Tires | |
| Front tires | Industrial: 5.70-8 |
| Rear tires | Industrial: 27×8.50-15 |
| Three-Point Hitch | |
| Category | 0 |
| Control type | – |
| Lift capacity (at ends) | – |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | 11.4 L (3 US. gal, 2.5 Imp. gal.) |
| Pressure | 2300 psi (158.6 bar) |
| Pump flow | 9.0 gpm (34.1 lpm) |