Case
J.I. Case 770
The J.I. Case 770 is a farm tractor produced from 1969 to 1972 by J.I. Case in Racine, Wisconsin, USA. It features diesel and gasoline 4-cylinder liquid-cooled engines, with power outputs ranging from approximately 49 to 64.56 hp depending on drawbar or PTO and testing conditions. The tractor offers two transmission options: an 8-speed unsynchronized gear and a 12-speed partial power shift. It has a wide range of hydraulic capabilities and an independent rear PTO with multiple speed options. The 770 is a two-wheel drive tractor with power steering, hydraulic dry disc brakes, and an open operator station with an optional cab. It was built with a variety of tire sizes and has a ballasted weight up to 10,950 lbs. The 770 is related to the J.I. Case 870 model.
Power62 hp[P]
Founded1969 - 1972
Model770
Technical Specifications
Detailed specifications and technical data for J.I. Case 770
Power
| PTO (tested) | 64.56 hp (48.1 kW) |
|---|---|
| PTO (claimed) | 56 hp (41.8 kW) |
| Drawbar (tested) | 56.85 hp (42.4 kW) |
| Drawbar (claimed) | 49 hp (36.5 kW) |
Tires
| Rear tire | 16.9-34 |
|---|---|
| Front tire | 7.5L-15 |
Engine
| Fuel tank | 50 gal (189.2 L) |
|---|---|
| Diesel engine | 4-cylinder, liquid-cooled, displacement 267 ci (4.4 L), bore/stroke 4.125x5.00 inches (105 x 127 mm), air cleaner paper element with pre-cleaner, compression 16.5:1, rated RPM 1900 (early), 2000 (late), starter volts 12 |
| Engine options | J.I. Case 4.4L 4-cyl diesel, J.I. Case 4.1L 4-cyl gasoline |
| Gasoline engine | 4-cylinder, liquid-cooled, displacement 251 ci (4.1 L), bore/stroke 4.00x5.00 inches (102 x 127 mm), air cleaner paper element with precleaner, compression 7.5:1, rated RPM 1900, starter volts 12, coolant capacity 28 qts (26.5 L) |
Dimensions
| Length | 153 inches (388 cm) |
|---|---|
| Rear tread | 60 to 88 inches (152 to 223 cm) |
| Front tread | 60 to 88 inches (152 to 223 cm) |
| Height (hood) | 67 inches (170 cm) |
| Ballasted weight | 10,950 lbs (4966 kg) |
| Ground clearance | 15 inches (38 cm) |
| Operating weight | 9,220 lbs (4182 kg) |
| Tricycle Wheelbase | 94 inches (238 cm) |
| Wide-front Wheelbase | 101 inches (256 cm) |
Hydraulics
| Type | open center |
|---|---|
| Pump flow | 16 gpm (60.6 lpm) |
| Total flow | 24 gpm (90.8 lpm) |
| Steering flow | 8 gpm (30.3 lpm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Differential hydraulic dry disc brakes |
| Steering | Power steering |
| Operator station | Open operator station. Cab optional. |
Production
| Built in | Racine, Wisconsin, USA |
|---|---|
| Total built | 1,690 |
| Manufacturer | J.I. Case |
| Original price | $7,600 in 1973 |
| Years produced | 1969 - 1972 |
Transmission
| Power shift | Range Power Shift, partial power shift type, 12 forward and 4 reverse gears, hydraulic wet discs clutch, four gears each with reverse and a three-speed forward powershift |
|---|---|
| Unsynchronized gear | Type unsynchronized gear, 8 forward and 2 reverse gears, clutch 304.8mm dry disc |
| Transmission options | 8-speed unsynchronized gear, 12-speed partial power shift |
Tractor hitch
| Rear Type | II |
|---|
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Engine RPM | 540@1900, 1000@1900 |
| Rear PTO Type | 540 (1.375), 540/1000 (1.375) |