Search/Backhoe Loader/J.I. Case/780 Construction King

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Backhoe Loader · 1971Unverified

J.I. Case 780 Construction King

Name: J.I. Case 780 Construction King
Brand: J.I. Case

J.I. Case 780 Construction King — Backhoe loader tractor · 120 hp. Reference specifications; pending source verification.

The J.I. Case 780 Construction King is a backhoe loader model with a rated output of 120 hp — placing it among the higher-powered machines in its class. The 780 Construction King was produced from 1971 to 1981. It is powered by a 4-cylinder diesel liquid-cooled engine, driving through two-wheel drive with a powershift transmission. Listed weight is 21000 to 23200 pounds, and it is aimed at jobs of around 200–800 ac. Detailed specifications in both UK and US units follow below.

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

Rated power

120 hp

Weight

21000 to 23200 pounds

Catalogue coverage

Variants represented

Richest spec table

93 rows

Recorded power

120 hp

Transmissions

2-speed power shift

Production years

1971-1981

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

Backhoe loader tractorReference

Two-wheel driveReference

Final drivesoutboard planetaryReference

Power steeringReference

Pneumatic drum brakesReference

Cab standard with optional heater.Reference

Engine

J.I. Case 5.5L 4-cyl dieselReference

Engine (gross)89.5 kWReference

Engine (net)82.8 kWReference

J.I. Case A336 BDTReference

dieselReference

4-cylinderReference

liquid-cooledReference

Displacement5.5 LReference

Bore/Stroke117 x 127 mmReference

Power (net)82.8 kWReference

Power (gross)89.5 kWReference

Fuel systemdirect injectionReference

Air cleanerdryReference

Compression16.5:1Reference

Rated RPM2200Reference

Torque446.1 NmReference

Torque RPM1500Reference

StarterelectricReference

Starter volts24Reference

Oil capacity10.4 LReference

Coolant capacity24.6 LReference

Transmission

2-speed power shiftReference

Typepower shiftReference

Gears2 forward and reverseReference

Oil capacity18.9 LReference

Two-speed power shift transmission with torque converter and power shuttle.Reference

Capacities

Fuel132.5 LReference

PTO & Hydraulics

Hydraulic system174.1 LReference

Capacity174.1 LReference

Pump flow132.5 lpmReference

Pump flow87.1 lpmReference

Total flow219.5 lpmReference

Dimensions

Wheelbase220 cmReference

Weight21000 to 23200 poundsReference

Front tire9.00x20Reference

Rear tire18.4x24Reference

Industrial front9.00x20Reference

Industrial rear18.4x24Reference

Industrial rear21Lx24Reference

Industrial front14.00x17.5Reference

Industrial rear18.4x28Reference

Length749 cmReference

Length754 cmReference

Width236 cmReference

Height (steering wheel)218 cmReference

Height (cab)297 cmReference

Height (backhoe)403 cmReference

Clearance (rear axle)39 cmReference

Front tread198 cmReference

Rear tread189 cmReference

Shipping9525 kgReference

Shipping10523 kgReference

Max front axle30844 kgReference

Max front axle7711 kgReference

Backhoe & Loader

Dig depth558 cmReference

Dump angle132 cmReference

Electrical

Charging systemalternatorReference

Charging amps35Reference

Batteries2Reference

Battery volts12Reference

Battery AH95Reference

Attachment overview

Front-end loaderReference

BackhoeReference

J.I. Case 18-foot Backhoe

Backhoe typeJ.I. Case 18-foot BackhoeReference

Transport height403 cmReference

Digging depth558 cmReference

2-Foot flat digging depth553 cmReference

Reach from pivot687 cmReference

Loading height387 cmReference

Bucket Rotation155°Reference

Swing Arc180°Reference

Bucket force6047 kgReference

Dipperstick force4915 kgReference

J.I. Case Extendahoe Backhoe

Backhoe typeJ.I. Case Extendahoe BackhoeReference

Transport height406 cmReference

Digging depth (retracted stick)548 cmReference

Digging depth (extended stick)670 cmReference

Reach from pivot (retracted stick)688 cmReference

Reach from pivot (extended stick)805 cmReference

Bucket Rotation156°Reference

Swing Arc180°Reference

Bucket force (retracted stick)6100 kgReference

Bucket force (extended stick)6100 kgReference

Dipperstick force (retracted stick)4839 kgReference

Dipperstick force (extended stick)3625 kgReference

Speeds

With 18.4x24 rear tires.Reference

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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