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J.I. Case 770

J.I. Case 770 tractor
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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.
J.I. Case 770farm tractorspecificationsenginetransmissiondimensionspowerhydraulicsJ.I. Case 870
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)

Related Models

J.I. Case 870

Model:870