Production
| Description | Agricultural Crawler tractor / Built in Cleveland, Ohio, USA |
|---|---|
| Manufacturer | Oliver |
Engine
| Bore/Stroke | 4.00x4.50 inches (102 x 114 mm) / 3.75x4.50 inches (95 x 114 mm) |
|---|---|
| Compression | 6.25:1 / 15.5:1 |
| Coolant capacity | 24 qts (22.7 L) / 20 qts (18.9 L) |
| Description | Hercules JXLD / gasoline / 6-cylinder / liquid-cooled vertical L-head / vertical L-head / Hercules DJXC / diesel / 6-cylinder / liquid-cooled vertical I-head |
| Displacement | 339 ci (5.6 L) / 298 ci (4.9 L) |
| Oil capacity | 12 qts (11.4 L) |
| Power | 63 hp (47.0 kW) / 61.5 hp (45.9 kW) |
| Rated RPM | 1750 / 1750 |
| Starter volts | 6 / 12 |
| Engine type | Hercules 5.6L 6-cyl gasoline / Hercules 4.9L 6-cyl diesel |
| Engine type | Hercules 5.6L 6-cyl gasoline / Hercules 4.9L 6-cyl diesel |
| Fuel tank | 35 gal (132.5 L) |
| Belt (claimed) | 59 hp (44.0 kW) |
| Belt (tested) | 57.93 hp (43.2 kW) |
| Drawbar (claimed) | 53 hp (39.5 kW) |
| Drawbar (tested) | 50.83 hp (37.9 kW) |
Transmission
| Gears | 4 forward and 2 reverse |
|---|---|
| Oil capacity | 32 qts (30.3 L) |
| Transmission type | 4-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Gauge | 44 inches (111 cm) / 60 inches (152 cm) |
|---|---|
| Ground clearance | 14.1 inches (35 cm) |
| Height | 66.5 inches (168 cm) |
| Length | 109.75 inches (278 cm) |
| Weight | 10925 lbs (diesel) (4955 kg) |
| Width | 58 inches (44 gauge) (147 cm) |
Dimensions & Tracks
| Description | 14-inch tracks |
|---|---|
| Weight | 10925 lbs (4955 kg) |
Nebraska Tractor Test 548
| Belt fuel use (max) | 6.0 gal/hour (22.7 l/hour) |
|---|---|
| Belt power (max) | 57.93 hp (43.2 kW) |
| Description | Gasoline 4-speed crawlerJune 15 - 28, 1955Link: Nebraska Tractor Test 548 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 50.83 hp (37.9 kW) |
| Max pull | 10399 lbs (4716 kg) |
Nebraska Tractor Test 549
| Belt fuel use (max) | 4.8 gal/hour (18.2 l/hour) |
|---|---|
| Belt power (max) | 56.55 hp (42.2 kW) |
| Description | Diesel 4-speed crawlerJune 15 - 28, 1955Link: Nebraska Tractor Test 549 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 50.54 hp (37.7 kW) |
| Max pull | 11333 lbs (5140 kg) |
Oliver OC-12 Tracks
| 4-roller area on ground | 1897 in² (1.2 m²) |
|---|---|
| 4-roller length on ground | 67.75 inches (172 cm) |
| 4-roller width | 14 inches (35 cm) |
| 5-roller area on ground | 2002 in² (1.3 m²) |
| 5-roller length on ground | 71.5 inches (181 cm) |
| 5-roller width | 14 inches (35 cm) |
Oliver OC-12 attachments
| Description | blade |
|---|
References
| Description | New OC-12 Diesel Crawler with Power-Turn Steering published in 1955, by Oliver / OC-12 Diesel Crawler published in 1956, by Oliver / OC-12 Power-Turn Diesel Crawler published in 1958, by Oliver / OC-12 Crawler Tractor published in 1959, by Oliver |
|---|
Tractor Tests
| Description | NTTL 548: gasoline 4-speed crawler / NTTL 549: diesel 4-speed crawler |
|---|
Variants
| OC-12 | crawler |
|---|---|
| OC-126 | crawler-loader |