Backhoe Loader · 1971Unverified
J.I. Case 780 Construction King
J.I. Case 780 Construction King — Backhoe loader tractor · 120 hp. Reference specifications; pending source verification.
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
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.