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Tractor · 1969Unverified

J.I. Case 770

Name: J.I. Case 770
Brand: J.I. Case

J.I. Case 770 · 54 hp. Reference specifications; pending source verification.

The J.I. Case 770 is a tractor with an approximate power output of 54 hp, positioning it at the lower end of its class in terms of engine power. This model was produced from 1969 to 1972 and features a 4-cylinder diesel liquid-cooled engine, paired with a two-wheel drive system and a powershift transmission. The tractor's operating weight is 4182 kg, and it is capable of operations on up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

54 hp

Max power

34.5 kW

Weight

4182 kg

Catalogue coverage

Variants represented

Richest spec table

122 rows

Recorded power

54 hp

Recorded weight

4182 kg

Transmissions

8-speed unsynchronized gear

Production years

1969-1972

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerJ.I. CaseReference

Built in Racine, Wisconsin, USAReference

Total built1,690Reference

Original price was $7,600 in 1973Reference

Two-wheel driveReference

Power steeringReference

Differential hydraulic dry disc brakesReference

Open operator station. Cab optional.Reference

Engine

J.I. Case 4.4L 4-cyl dieselReference

J.I. Case 4.1L 4-cyl gasolineReference

Fuel tank189.2 LReference

Drawbar (claimed)36.5 kWReference

Drawbar (tested)42.4 kWReference

J.I. CaseReference

dieselReference

4-cylinderReference

liquid-cooledReference

Engine RPMs increased from 1900 to 2000 starting at serial number 8675001, creating an increase of about 8 horsepower.Reference

Displacement4.4 LReference

Bore/Stroke105 x 127 mmReference

Air cleanerpaper element with pre-cleanerReference

Compression16.5:1Reference

Rated RPM1900 (early)Reference

Rated RPM2000 (late)Reference

Starter volts12Reference

gasolineReference

Displacement4.1 LReference

Bore/Stroke102 x 127 mmReference

Air cleanerpaper element with precleanerReference

Compression7.5:1Reference

Rated RPM1900Reference

Coolant capacity26.5 LReference

Power at rated engine speed39.9 kWReference

Max power34.5 kWReference

Power at rated engine speed42.0 kWReference

Max power36.7 kWReference

Power at rated engine speed42.3 kWReference

Max power37.6 kWReference

Power at rated engine speed42.0 kWReference

Max power36.6 kWReference

Power at rated engine speed47.7 kWReference

Max power42.4 kWReference

Power at rated engine speed48.1 kWReference

Max power41.7 kWReference

Transmission

8-speed unsynchronized gearReference

12-speed partial power shiftReference

Typeunsynchronized gearReference

Gears8 forward and 2 reverseReference

Clutch304.8mm dry discReference

TransmissionRange Power ShiftReference

Typepartial power shiftReference

Gears12 forward and 4 reverseReference

Clutchhydraulic wet discsReference

Four gears each with reverse and a three-speed forward powershift.Reference

PTO & Hydraulics

PTO (claimed)41.8 kWReference

PTO (tested)48.1 kWReference

Typeopen centerReference

Pump flow60.6 lpmReference

Total flow90.8 lpmReference

Steering flow30.3 lpmReference

Rear TypeIIReference

Rear PTOindependentReference

Rear PTO Type540 (1.375)Reference

Rear PTO Type540/1000 (1.375)Reference

Engine RPM540@1900Reference

Engine RPM1000@1900Reference

Power at rated PTO speed46.9 kWReference

Power at rated PTO speed46.2 kWReference

Dimensions

Wide-front Wheelbase256 cmReference

Tricycle Wheelbase238 cmReference

Weight4182 kgReference

Front tire7.5L-15Reference

Rear tire16.9-34Reference

Ag front7.5L-15Reference

Ag rear16.9-34Reference

Length388 cmReference

Height (hood)170 cmReference

Operating weight4182 kgReference

Ballasted weight4966 kgReference

Ground clearance38 cmReference

Front tread152 to 223 cmReference

Rear tread152 to 223 cmReference

770 Serial Numbers

19698356251Reference

19708650001Reference

19718674001Reference

19728691801Reference

FAQ: How to read a serial number table.Reference

Test results

NTTL 1032: gasoline 12-speed 2WDReference

NTTL 1033: diesel 8-speed 2WDReference

NTTL 1058: diesel 12-speed 2WDReference

NTTL 1061: gasoline 8-speed 2WDReference

NTTL 1088: diesel 8-speed 2WDReference

NTTL 1089: diesel 12-speed 2WDReference

Gasoline 12-speed 2WDNovember 10 - 22, 1969Link: Nebraska Tractor Test 1032 fileReference

PTO performanceReference

Fuel use18.9 l/hourReference

Drawbar performanceReference

Fuel use19.7 l/hourReference

Gear 2-High used for power test.Reference

Max pull3221 kgReference

Gear 2-Low used for pull test.Reference

Diesel 8-speed 2WDNovember 11 - 22, 1969Link: Nebraska Tractor Test 1033 fileReference

Fuel use13.6 l/hourReference

Fuel use14.0 l/hourReference

Gear 4-Low used for power test.Reference

Max pull3457 kgReference

Diesel 12-speed 2WDOctober 28 - November 7, 1970Link: Nebraska Tractor Test 1058 fileReference

Fuel use14.4 l/hourReference

Max pull3459 kgReference

Gear 1-Med used for pull test.Reference

Gasoline 8-speed 2WDNovember 6 - 19, 1970Link: Nebraska Tractor Test 1061 fileReference

Max pull3390 kgReference

Diesel 8-speed 2WDNovember 13 - 23, 1971Link: Nebraska Tractor Test 1088 fileReference

Fuel use16.3 l/hourReference

Fuel use15.5 l/hourReference

Max pull4015 kgReference

Gear 1-Low used for pull test.Reference

Diesel 12-speed 2WDNovember 15 - 24, 1971Link: Nebraska Tractor Test 1089 fileReference

Fuel use16.7 l/hourReference

Fuel use15.9 l/hourReference

Gear 3-Low used for power test.Reference

Max pull4049 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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