1958 - 1961 |
900 Series |
Standard-tread tractor |
Series: | 950 ← | 990 | → 995 |
Production | |
Manufacturer: | Oliver |
Type: | Standard-tread tractor |
Factory: | Charles City, Iowa, USA |
Original price: | $8,200 (1961 ) |
The Oliver 990 was also sold as the Massey Ferguson 98 (with different sheet metal, paint, and seat). |
Oliver 990 Power | |
Drawbar (claimed): | 61.4 hp 45.8 kW |
PTO (claimed): | 84.1 hp 62.7 kW |
Plows: | 6 |
Drawbar (tested): | 61.46 hp 45.8 kW |
Belt (tested): | 84.10 hp 62.7 kW |
power test details ... |
Oliver 990 Engine | |
General Motors 3.5L 3-cyl diesel | |
Engine details ... |
Mechanical | |
Chassis: | 4x2 2WD |
Steering: | power |
Brakes: | disc |
Cab: | Open operator station. |
Transmission: | 6-speed gear |
Transmission details ... |
Power Take-off (PTO) | |
Rear PTO: | independent*Optional |
Rear RPM: | 540 |
Dimensions & Tires | |
Wheelbase: | 79.875 inches 202 cm |
Weight: | 11,000 lbs 4989 kg |
Front tire: | 7.50-18 |
Rear tire: | 18-26 |
Full dimensions and tires ... |
990 Serial Numbers | |
1958: | 67828 |
1959: | 71245 |
1960: | 84487 |
1961: | 110064 |
Final: | 115469 |
how to read serial numbers... |
Belt Pulley | |
Diameter: | 12.25 inches 31 cm |
Width: | 9 inches 22 cm |
RPM: | 1021 |
Speed: | 3277 ft/min 998.83 meters/min |
1958 - 1961 |
900 Series |
Standard-tread tractor |
Series: | 990 ← | 995 |
Nebraska Tractor Test 662 | |||
|
Nebraska Tractor Test 662 | |
Diesel 6-speed 2WD July 7 - 23, 1958 Link: Nebraska Tractor Test 662 file | |
Belt power (max): | 85.37 hp 63.7 kW |
Belt fuel use (max): | 6.8 gal/hour 25.7 l/hour |
Drawbar performance | |
Max power: | 71.70 hp 53.5 kW |
Fuel use: | 6.8 gal/hour 25.7 l/hour |
Gear 3 used for power test. | |
Max pull: | 12538 lbs 5687 kg |
Gear 1 used for pull test. |
1958 - 1961 |
900 Series |
Standard-tread tractor |
Series: | 990 ← | 995 |
Engine Detail | |
General Motors 3-71 | |
blower diesel | |
3-cylinder | |
liquid-cooled | |
Displacement: | 213 ci 3.5 L |
Bore/Stroke: | 4.25x5.00 inches 108 x 127 mm |
Compression: | 17:1 |
Rated RPM: | 2000 |
Starter volts: | 12 |
1958 - 1961 |
900 Series |
Standard-tread tractor |
Series: | 990 ← | 995 |
Transmission | |
Type: | torque converter |
Gears: | 6 forward and 2 reverse |
1958 - 1961 |
900 Series |
Standard-tread tractor |
Series: | 990 ← | 995 |
Oliver 995 Tires | |
Ag front: | 7.50-18 |
Ag rear: | 18-26 |
14-34 | |
15-34 |
Dimensions | |
Length: | 79.875 inches 202 cm |
Operating weight: | 11200 lbs 5080 kg |
Ballasted weight: | 16745 lbs 7595 kg |
Front tread: | 59.9 inches 152 cm |
Rear tread: | 66 inches 167 cm |