Oliver industrial tractors
Oliver OC-4 Alfta Track
The Oliver OC-4 Alfta Track is an industrial crawler tractor produced from 1957 to 1965 by Oliver, a part of White. It features a Hercules 2.1L 3-cylinder engine available in diesel or gasoline versions, delivering around 30 hp. The tractor has a crawler drive with an open operator station and offers 4-speed gear and 8-speed creeper transmission options. It includes a rear PTO type 540 (1.375). Dimensions include a length of 106 inches, width of 69 inches with 15-inch grousers, and height of 73 inches. Operating weight ranges from 5225 to 5360 pounds depending on engine and track size. The tractor uses 15 or 19-inch tracks with significant ground contact area for traction. Additional features include a belt pulley with 8.5 inch diameter and 6.5 inch width running at 1096 RPM.
Power-
Founded-
ModelOC-4 Alfta Track
Technical Specifications
Detailed specifications and technical data for Oliver OC-4 Alfta Track
Power
| Engine power | 30.45 hp (22.7 kW) |
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Engine
| Options | Hercules 2.1L 3-cyl diesel, Hercules 2.1L 3-cyl gasoline |
|---|---|
| Hercules diesel | 3-cylinder, liquid-cooled, Displacement 130 ci (2.1 L), Bore/Stroke 3.50x4.50 inches (89 x 114 mm), Power 30.45 hp (22.7 kW), Air cleaner oil bath, Compression 14.5:1, Rated RPM 1700, Starter type electric |
| Hercules gasoline | 3-cylinder, liquid-cooled, Displacement 130 ci (2.1 L), Bore/Stroke 3.50x4.50 inches (89 x 114 mm), Power 30.20 hp (22.5 kW), Air cleaner oil bath, Compression 6.5:1, Rated RPM 1700, Starter type electric |
Tracks
| Width | 15 inches (38 cm), 19 inches (48 cm) |
|---|---|
| Area on ground | 2160 in² (1.4 m²), 2736 in² (1.8 m²) |
| Length on ground | 72 inches (182 cm) |
Variants
| OC-4 | crawler |
|---|---|
| Alfta | flex-track |
| OC-46 | loader-crawler |
Dimensions
| Gauge | 54 inches (137 cm) |
|---|---|
| Width | 69 inches (175 cm) *Width with 15-inch grousers. |
| Height | 73 inches (185 cm) |
| Length | 106 inches (269 cm) |
| Operating weight | 5225 lbs (gas 15") (2370 kg), 5360 lbs (diesel 19") (2431 kg) |
| Clearance (drawbar) | 15.25 inches (38 cm) |
Mechanical
| Drive | crawler |
|---|---|
| Operator station | Open operator station. |
Production
| Type | Industrial Crawler tractor |
|---|---|
| Manufacturer | Oliver (a part of White) |
| Years produced | 1957 - 1965 |
Belt Pulley
| RPM | 1096 |
|---|---|
| Speed | 2437 ft/min (742.80 meters/min) |
| Width | 6.5 inches (16 cm) |
| Diameter | 8.5 inches (21 cm) |
Transmission
| Options | 4-speed gear, 8-speed creeper |
|---|---|
| Gear transmission | Type gear, Gears 4 forward and 1 reverse, Clutch 215.9mm dry discs |
| Creeper transmission | Type creeper, Gears 8 forward and 2 reverse, Clutch 215.9mm dry discs |
Power Take-off (PTO)
| Rear PTO Type | 540 (1.375) |
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