Case 770 tractor specifications

1969 - 1972

Series:

Series:770 → 870

1970 - 1975

70 Series

Series:

770 ←

870

→ 970

Production

Production
Manufacturer:	J.I. Case
Factory:	Racine, Wisconsin, USA
Total built:	3,238
Original price:	$8,400 (1975 )

J.I. Case 870 Power

J.I. Case 870 Power
Drawbar (claimed):	62 hp 46.2 kW
PTO (claimed):	71 hp 52.9 kW
Drawbar (tested):	69.53 hp 51.8 kW
PTO (tested):	80.49 hp 60.0 kW
power test details ...

J.I. Case 870 Engines

J.I. Case 870 Engines
J.I. Case 5.5L 4-cyl diesel
J.I. Case 4.9L 4-cyl gasoline
Fuel tank:	50 gal 189.3 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	power
Brakes:	differential hydraulic dry disc
Cab:	Cab optional
Transmissions:	8-speed unsynchronized gear
	12-speed partial power shift
Transmission details ...

Hydraulics

Hydraulics
Pump flow:	16 gpm 60.6 lpm
Total flow:	24 gpm 90.8 lpm
Steering flow:	8 gpm 30.3 lpm

Tractor hitch

Tractor hitch
Rear Type:	II

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent
Rear RPM:	540 (1.375)
	540/1000 (1.375)
Engine RPM:	540@1900 1000@1900

Dimensions & Tires

Dimensions & Tires
Wide-front Wheelbase:	101 inches 256 cm
Tricycle Wheelbase:	94 inches 238 cm
Weight:	9,200 lbs 4173 kg
Front tire:	7.50-16
Rear tire:	18.4-34
Full dimensions and tires ...

870 Serial Numbers

870 Serial Numbers
1970:	8650001
1971:	8674001
1972:	8691801
1973:	8712001
1974:	8736601
1975:	8770001
how to read serial numbers...

Production

Production Manufacturer:J.I. Case
Factory:Racine, Wisconsin, USA
Total built:1,690
Original price:$7,600 (1973 )

J.I. Case 770 Power

J.I. Case 770 Power Drawbar (claimed):49 hp
36.5 kW
PTO (claimed):56 hp
41.8 kW
Drawbar (tested):56.85 hp
42.4 kW
PTO (tested):64.56 hp
48.1 kW
power test details ...

1969 - 1972

Series:

770

→ 870

Nebraska Tractor Test 1032

Nebraska Tractor Test 1032
Gasoline 12-speed 2WD November 10 - 22, 1969 Link: Nebraska Tractor Test 1032 file
PTO performance
Power at rated engine speed:	53.53 hp 39.9 kW
Fuel use:	5.0 gal/hour 18.9 l/hour
Drawbar performance
Max power:	46.30 hp 34.5 kW
Fuel use:	5.2 gal/hour 19.7 l/hour
Gear 2-High used for power test.
Max pull:	7,103 lbs 3221 kg
Gear 2-Low used for pull test.

Nebraska Tractor Test 1033

Nebraska Tractor Test 1033
Diesel 8-speed 2WD November 11 - 22, 1969 Link: Nebraska Tractor Test 1033 file
PTO performance
Power at rated engine speed:	56.36 hp 42.0 kW
Fuel use:	3.6 gal/hour 13.6 l/hour
Drawbar performance
Max power:	49.18 hp 36.7 kW
Fuel use:	3.7 gal/hour 14.0 l/hour
Gear 4-Low used for power test.
Max pull:	7,623 lbs 3457 kg
Gear 2-Low used for pull test.

Nebraska Tractor Test 1058

Nebraska Tractor Test 1058
Diesel 12-speed 2WD October 28 - November 7, 1970 Link: Nebraska Tractor Test 1058 file
PTO performance
Power at rated engine speed:	56.77 hp 42.3 kW
Fuel use:	3.8 gal/hour 14.4 l/hour
Drawbar performance
Max power:	50.36 hp 37.6 kW
Fuel use:	3.7 gal/hour 14.0 l/hour
Gear 2-High used for power test.
Max pull:	7,627 lbs 3459 kg
Gear 1-Med used for pull test.

Nebraska Tractor Test 1061

Nebraska Tractor Test 1061
Gasoline 8-speed 2WD November 6 - 19, 1970 Link: Nebraska Tractor Test 1061 file
PTO performance
Power at rated engine speed:	56.32 hp 42.0 kW
Fuel use:	5.0 gal/hour 18.9 l/hour
Drawbar performance
Max power:	49.14 hp 36.6 kW
Fuel use:	5.0 gal/hour 18.9 l/hour
Gear 4-Low used for power test.
Max pull:	7,474 lbs 3390 kg
Gear 2-Low used for pull test.

Nebraska Tractor Test 1088

Nebraska Tractor Test 1088
Diesel 8-speed 2WD November 13 - 23, 1971 Link: Nebraska Tractor Test 1088 file
PTO performance
Power at rated engine speed:	63.90 hp 47.7 kW
Fuel use:	4.3 gal/hour 16.3 l/hour
Power at rated PTO speed:	62.85 hp 46.9 kW
Fuel use:	4.1 gal/hour 15.5 l/hour
Drawbar performance
Max power:	56.85 hp 42.4 kW
Fuel use:	4.3 gal/hour 16.3 l/hour
Gear 4-Low used for power test.
Max pull:	8,853 lbs 4015 kg
Gear 1-Low used for pull test.

Nebraska Tractor Test 1089

Nebraska Tractor Test 1089
Diesel 12-speed 2WD November 15 - 24, 1971 Link: Nebraska Tractor Test 1089 file
PTO performance
Power at rated engine speed:	64.56 hp 48.1 kW
Fuel use:	4.4 gal/hour 16.7 l/hour
Power at rated PTO speed:	61.93 hp 46.2 kW
Fuel use:	4.2 gal/hour 15.9 l/hour
Drawbar performance
Max power:	55.95 hp 41.7 kW
Fuel use:	4.4 gal/hour 16.7 l/hour
Gear 3-Low used for power test.
Max pull:	8,927 lbs 4049 kg
Gear 1-Med used for pull test.

J.I. Case 770 Engines

J.I. Case 770 Engines J.I. Case 4.4L 4-cyl diesel J.I. Case 4.1L 4-cyl gasoline Fuel tank:50 gal
189.3 L
Engine details ...

1969 - 1972

Series:

770

→ 870

Engines overview

Engines overview
J.I. Case 4.4L 4-cyl diesel
J.I. Case 4.1L 4-cyl gasoline

Engine Detail

Engine Detail
J.I. Case
diesel
4-cylinder
liquid-cooled
Engine RPMs increased from 1900 to 2000 starting at serial number 8675001, creating an increase of about 8 horsepower.
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 Detail

Engine Detail
J.I. Case
gasoline
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

Mechanical

Mechanical Chassis:4x2 2WD
Steering:power
Brakes:differential hydraulic dry disc
Cab:Open operator station. Cab optional.
Transmissions:8-speed unsynchronized gear
12-speed partial power shift
Transmission details ...

1969 - 1972

Series:

770

→ 870

Transmissions overview

Transmissions overview
8-speed unsynchronized gear
12-speed partial power shift

Transmission

Transmission
Type:	unsynchronized gear
Gears:	8 forward and 2 reverse
Clutch:	304.8mm dry disc

Speeds

Speeds

Transmission

Transmission
Transmission:	Range Power Shift
Type:	partial power shift
Gears:	12 forward and 4 reverse
Clutch:	hydraulic wet discs
Four gears each with reverse and a three-speed forward powershift.

Speeds

Speeds

Hydraulics

Hydraulics Pump flow:16 gpm
60.6 lpm
Total flow:24 gpm
90.8 lpm
Steering flow:8 gpm
30.3 lpm

Tractor hitch

Tractor hitch Rear Type:II

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540 (1.375)
540/1000 (1.375)
Engine RPM:540@1900
1000@1900

Dimensions & Tires

Dimensions & Tires Wide-front Wheelbase:101 inches
256 cm
Tricycle Wheelbase:94 inches
238 cm
Weight:9,220 lbs
4182 kg
Front tire:7.5L-15
Rear tire:16.9-34
Full dimensions and tires ...

1969 - 1972

Series:

770

→ 870

J.I. Case 770 Tires

J.I. Case 770 Tires
Ag front:	7.5L-15
Ag rear:	16.9-34

Dimensions

Dimensions
Wide-front Wheelbase:	101 inches 256 cm
Tricycle Wheelbase:	94 inches 238 cm
Length:	153 inches 388 cm
Height (hood):	67 inches 170 cm
Operating weight:	9,220 lbs 4182 kg
Ballasted weight:	10,950 lbs 4966 kg
Ground clearance:	15 inches 38 cm
Front tread:	60 to 88 inches 152 to 223 cm
Rear tread:	60 to 88 inches 152 to 223 cm