Production
| Description | Row-Crop tractor / Built in Charles City, Iowa, USA / Original price was $3,000 in 1954 |
|---|---|
| Manufacturer | Oliver |
Engine
| Air cleaner | oil bath / oil bath / oil bath |
|---|---|
| Bore/Stroke | 3.3125x3.75 inches (84 x 95 mm) / 3.3125x3.75 inches (84 x 95 mm) / 3.3125x3.75 inches (84 x 95 mm) |
| Compression | 6.75:1 / 15.75:1 / 6.75:1 |
| Coolant capacity | 13.5 qts (12.8 L) / 18 qts (17.0 L) / 18 qts (17.0 L) |
| Description | Waukesha-Oliver / gasoline / 6-cylinder / liquid-cooled vertical I-head / Waukesha-Oliver / diesel / 6-cylinder / liquid-cooled vertical I-head / Waukesha-Oliver / LP gas / 6-cylinder / liquid-cooled |
| Displacement | 193.9 ci (3.2 L) / 193.9 ci (3.2 L) / 193.9 ci (3.2 L) |
| Firing order | 1-5-3-6-2-4 / 1-5-3-6-2-4 |
| Oil capacity | 8 qts (7.6 L) |
| Rated RPM | 1600 / 1600 / 1600 |
| Starter volts | 12 / 6 |
| Engine type | Waukesha-Oliver 3.2L 6-cyl gasoline / Waukesha-Oliver 3.2L 6-cyl diesel / Waukesha-Oliver 3.2L 6-cyl LP gas |
| Engine type | Waukesha-Oliver 3.2L 6-cyl gasoline / Waukesha-Oliver 3.2L 6-cyl diesel / Waukesha-Oliver 3.2L 6-cyl LP gas |
| Fuel tank | 16.5 gal (62.5 L) |
| Belt (tested) | 37.17 hp (27.7 kW) |
| Drawbar (tested) | 32.89 hp (24.5 kW) |
| Plows | 2-3 |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 6 forward and 2 reverse |
| Transmission type | 6-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Differential mechanical drum brakes |
| Drive type | Two-wheel drive |
| Steering | manual |
PTO
| Rear PTO | independent OptOptional |
|---|---|
| Rear PTO Type | 540 (1.375) |
Dimensions & Tires
| Front tread | 7.5/12.6 inches (tricycle) (19/32 cm) / 60 to 89.75 inches (wide-front) (152 to 227 cm) |
|---|---|
| Ground clearance | 24.9 inches (63 cm) |
| Height | 75 inches (190 cm) |
| Height (hood) | 61.625 inches (156 cm) |
| Length | 139.25 inches (353 cm) |
| Rear tread | 60 to 92.5 inches (152 to 234 cm) |
| Wheelbase | 90.75 inches (230 cm) |
| Width | 80.25 inches (203 cm) |
| Front tire | 5.50-16 |
| Rear tire | 10-38 |
| Weight | 4207 to 4502 pounds |
| Wheelbase | 90.75 inches (230 cm) |
| Ag front | 5.50-16 |
| Ag rear | 10-38 |
77 Serial Numbers
| 1948 | 320001 |
|---|---|
| 1949 | 320241 |
| 1950 | 327901 |
| 1951 | 337243 |
| 1952 | 347904 |
| 1953 | 3500001 |
| 1954 | 4501667 |
| Description | FAQ: How to read a serial number table. |
| Final | 4504470 |
| Location: | early: rear main frame and transmission, front-right side |
Belt Pulley
| Diameter | 12 inches (30 cm) |
|---|---|
| RPM | 992 |
| Speed | 3080 ft/min (938.78 meters/min) |
| Width | 7.25 inches (18 cm) |
Nebraska Tractor Test 404
| Belt fuel use (max) | 3.0 gal/hour (11.4 l/hour) |
|---|---|
| Belt power (max) | 33.98 hp (25.3 kW) |
| Description | Gasoline 6-speed 2WDOctober 21 - November 9, 1948Link: Nebraska Tractor Test 404 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 28.68 hp (21.4 kW) |
| Max pull | 4,076 lbs (1848 kg) |
Nebraska Tractor Test 425
| Belt fuel use (max) | 3.5 gal/hour (13.2 l/hour) |
|---|---|
| Belt power (max) | 37.17 hp (27.7 kW) |
| Description | Gasoline 6-speed 2WDSeptember 23 - 29, 1949Link: Nebraska Tractor Test 425 file / Drawbar performance / Gear 3 used for power test. |
| Max power | 32.89 hp (24.5 kW) |
| Max pull | 4,714 lbs (2138 kg) |
Nebraska Tractor Test 457
| Belt fuel use (max) | 2.5 gal/hour (9.5 l/hour) |
|---|---|
| Belt power (max) | 35.79 hp (26.7 kW) |
| Description | Diesel 6-speed 2WDMay 21 - 28, 1951Link: Nebraska Tractor Test 457 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 30.43 hp (22.7 kW) |
| Max pull | 4,818 lbs (2185 kg) |
Nebraska Tractor Test 470
| Belt fuel use (max) | 4.6 gal/hour (17.4 l/hour) |
|---|---|
| Belt power (max) | 36.33 hp (27.1 kW) |
| Description | LP gas 6-speed 2WDApril 28 - May 10, 1952Link: Nebraska Tractor Test 470 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 32.26 hp (24.1 kW) |
| Max pull | 4,778 lbs (2167 kg) |
Oliver 77 Weight
| Ballasted | 8,203 lbs (3720 kg) |
|---|---|
| Operating | 4,207 lbs (gas) (1908 kg) |
References
| Description | Diesel Tractors - 66, 77, 88 published in 1952, by Oliver / 77 and 88 Diesel Tractors published in 1950, by Oliver / 77 Tractor published in 1948, by Oliver |
|---|
Tractor Tests
| Description | NTTL 404: gasoline 6-speed 2WD / NTTL 425: gasoline 6-speed 2WD / NTTL 457: diesel 6-speed 2WD / NTTL 470: LP gas 6-speed 2WD |
|---|
Variants
| 77 Orchard | low-profile |
|---|---|
| 77 Row-Crop | tricycle chassis |
| 77 Standard | standard front |