J.I. Case
646
Farm tractor · 1972–1980 · 16 hp
J.I. Case646
The J.I. Case 646 is a farm tractor manufactured from 1972 to 1980. It features a Onan CCKA engine, and manual steering. The transmission is a hydraulic drive type with infinite forward and reverse (2-range).
Engine
| Engine | Onan CCKA |
|---|---|
| Fuel Type | gasoline |
| Cylinders | 2 |
| Cooling | air-cooled horizontal-shaft |
| Displacement | 49.8 ci (0.8 L) |
| Bore | 3.25 in (83 mm) |
| Stroke | 3 in (76 mm) |
| Compression Ratio | 7 |
| Power Gross | 16.5 hp (12.3 kW) |
| Power Rated | 16.5 hp (12.3 kW) |
| Starter Volts | 12 |
| Starter Type | electric |
| Oil Capacity | 4 qts (3.8 L) |
| Manufacturer | Onan |
| Rated | 3,600 RPM |
| Sparkplug Gap | 0.03 in (0.64 mm) |
| Oil Change Interval Hours | 50 |
Transmission
| Transmission Type | hydraulic drive |
|---|---|
| Transmission Model | Hy-Drive |
| Gears | infinite forward and reverse (2-range) |
Hydraulics
| Type | open center |
|---|---|
| Pump Flow | 9 gpm (34.1 lpm) |
| Pressure | 2,300 psi (158.6 bar) |
| System Capacity | 3 gal (11.4 L) |
Hitch
| Rear Type | 0 |
|---|
Dimensions
| Length | 108 in (274 cm) |
|---|---|
| Width | 41 in (104 cm) |
| Height | 43.25 in (109 cm) |
| Wheelbase | 48 in (121 cm) |
| Ground Clearance | 8.25 in (20 cm) |
Tires & Tracks
| Front Industrial | 5.70-8 |
|---|---|
| Rear Industrial | 27x8.50-15 |
Fuel
| Capacity | 5 gal (18.9 L) |
|---|
Steering
| Type | manual |
|---|
Attachments
44" mid-mount mower deck48" mid-mount mower deckFront-end loaderBackhoe
| Backhoe Model | J.I. Case D100 Backhoe |
|---|