Oliver 77 tractor
Oliver 77 Specs
Production
| Manufacturer | Oliver |
| Type | Row-Crop tractor |
| Factory | Charles City, Iowa, USA |
| Original price | $3,000 (1954) |
Variants
| 77 Row-Crop | tricycle chassis |
| 77 Standard | standard front |
| 77 Orchard | low-profile |
Engines
| Engines |
|
| Fuel tank | 16.5 gal |
Dimensions & Tires
| Wheelbase | 90.75 inches |
| Weight | 4207 to 4502 pounds |
| Front tire | 5.50-16 |
| Rear tire | 10-38 |
Belt Pulley
| Diameter | 12 inches |
| Width | 7.25 inches |
| RPM | 992 |
| Speed | 3,080 ft/min |
Power
| Plows | 2-3 |
| Drawbar (tested) | 32.89 hp |
| Belt (tested) | 37.17 hp |
Mechanical
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | differential mechanical drum |
| Cab | Open operator station. |
| Transmission | 6-speed unsynchronized gear |
Power Take-off (PTO)
| Rear RPM | 540 |
Serial Numbers
| Location |
|
| 1948 | 320001 |
| 1949 | 320241 |
| 1950 | 327901 |
| 1951 | 337243 |
| 1952 | 347904 |
| 1953 | 3500001 |
| 1954 | 4501667 |
| Final | 4504470 |
Oliver 77 engine specs
Engines overview
| Engines overview |
|
Engine Detail (gasoline)
| Engine Detail |
|
| Displacement | 193.9 ci |
| Bore/Stroke | 3.3125x3.75 inches |
| Air cleaner | oil bath |
| Compression | 6.75:1 |
| Rated RPM | 1600 |
| Firing order | 1-5-3-6-2-4 |
| Oil capacity | 8 qts |
| Coolant capacity | 13.5 qts |
Engine Detail (diesel)
| Engine Detail |
|
| Displacement | 193.9 ci |
| Bore/Stroke | 3.3125x3.75 inches |
| Air cleaner | oil bath |
| Compression | 15.75:1 |
| Rated RPM | 1600 |
| Firing order | 1-5-3-6-2-4 |
| Starter volts | 12 |
| Coolant capacity | 18 qts |
Engine Detail (LP gas)
| Engine Detail |
|
| Displacement | 193.9 ci |
| Bore/Stroke | 3.3125x3.75 inches |
| Air cleaner | oil bath |
| Compression | 6.75:1 |
| Rated RPM | 1600 |
| Starter volts | 6 |
| Coolant capacity | 18 qts |
Oliver 77 transmission
Transmission
| Type | unsynchronized gear |
| Gears | 6 forward and 2 reverse |
| Clutch | dry disc |
Speeds
| 1 | 2.5 |
| 2 | 3.3 |
| 3 | 4.3 |
| 4 | 5.6 |
| 5 | 6.6 |
| 6 | 11.5 |
| R1 | 2.6 |
| R2 | 4.5 |
Oliver 77 dimensions
Tires
| Ag front | 5.50-16 |
| Ag rear |
|
Dimensions
| Wheelbase | 90.75 inches |
| Length | 139.25 inches |
| Height | 75 inches |
| Ground clearance | 24.9 inches |
| Front tread | 60 to 89.75 inches |
| Rear tread | 60 to 92.5 inches |
Weight
| Operating (gas) | 4,207 lbs |
| Operating (diesel) | 4,502 lbs |
| Ballasted | 8,203 lbs |
Oliver 77 photos
