International Harvester industrial tractors

International Harvester 280A

The International Harvester 280A is a backhoe loader tractor produced from 1978 to 1982. It features a 5.9L 6-cylinder diesel engine producing 90 hp net and 97 hp gross, coupled with a 3-speed power shift transmission. The tractor includes outboard planetary final drives, hydraulic disc brakes, and power steering. It has a four-ROPS canopy with an optional cab featuring air-conditioning. The hydraulic system has a capacity of 31 gallons and operates at 2500 psi with separate pump flows for loader and backhoe. Dimensions include a 90.2 inch wheelbase, 296.9 inch length, and 17850 lbs operating weight. Attachments include a front-end loader with 6500 lbs lift capacity and an International backhoe with a digging depth of 194.9 inches.

Power-

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Model280A

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Technical Specifications

Detailed specifications and technical data for International Harvester 280A

Power

Engine (net)	90 hp (67.1 kW)
Engine (gross)	97 hp (72.3 kW)

Tires

Industrial rear	18.4x24, 18.4x25, 20.5x25
Industrial front	14-17.5, 15-19.5

Engine

Type	diesel
Model	International D-358
Cooling	liquid-cooled
Starter	electric
Cylinders	6-cylinder
Rated RPM	2300
Air cleaner	dry
Bore/Stroke	3.875x5.062 inches (98 x 129 mm)
Power (net)	90 hp (67.1 kW)
Pre-heating	ether injection
Displacement	358 ci (5.9 L)
Oil capacity	14.8 qts (14.0 L)
Power (gross)	97 hp (72.3 kW)
Starter volts	12
Coolant capacity	17 qts (16.1 L)

Weight

Weight	17850 lbs (8096 kg)
Max rear axle	18100 lbs (8210 kg)
Max front axle	22000 lbs (9979 kg)

Capacity

Fuel	38 gal (143.8 L)
Hydraulic system	31 gal (117.3 L)

Dimensions

Width	86.4 inches (219 cm)
Length	296.9 inches (754 cm)
Wheelbase	90.2 inches (229 cm)
Rear tread	68 inches (172 cm)
Front tread	68 inches (172 cm)
Height (ROPS)	109.1 inches (277 cm)
Height (backhoe)	146.1 inches (371 cm)

Electrical

Ground	negative
Battery volts	12
Charging amps	60
Charging system	alternator

Hydraulics

Capacity	31 gal (117.3 L)
Pressure	2500 psi (172.4 bar)
Pump flow	27 gpm (loader) (102.2 lpm), 44 gpm (backhoe) (166.5 lpm)

Mechanical

ROPS	Four-rops ROPS canopy. Cab optional with available air-conditioning.
Brakes	Hydraulic disc brakes
Final drives	outboard planetary

Production

Type	Backhoe loader tractor
Years made	1978 - 1982
Manufacturer	International Harvester

Attachments

Loader	Dump time1.9s Dump angle49° Lower time2.9s Raise time5.4s Bucket width91 inches (231 cm) Lift capacity6500 lbs (2948 kg) full at pin Breakout force10800 lbs (4898 kg) at pin Reach (dumped)46.5 inches (118 cm) Height (at pin)135 inches (342 cm) Clearance (dumped)103.9 inches (263 cm) Rollback (ground line)40°
Backhoe	TypeInternational Backhoe Swing arc180° Bucket force12554 lbs (5694 kg) Bucket width30 inches (76 cm) Digging depth194.9 inches (495 cm) Loading height128 inches (325 cm) Bucket rotation171° Reach from pivot239 inches (607 cm) Transport height146.1 inches (371 cm) Dipperstick force7097 lbs (3219 kg)
Attachment overview	Front-end loader, Backhoe