Case industrial tractors

J.I. Case 680K Construction King

The J.I. Case 680K Construction King is a backhoe loader tractor produced from 1986 to 1988. It features a 5.9L 6-cylinder diesel engine producing 101 hp gross and 90 hp net. The tractor has a 3-speed power shift transmission with torque converter and power shuttle. It is a two-wheel drive machine with outboard planetary final drives and hydrostatic power steering. The 680K offers ROPS canopy with optional cab and air-conditioning. It has a fuel capacity of 38 gallons and a hydraulic reservoir capacity of 13.7 gallons. The backhoe has a digging depth of 198 inches and the loader has a lift capacity of 5900 lbs at full height. The tractor weighs between 14900 and 17135 pounds depending on configuration.

Power-

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Model680K

J.I. Case 680K Construction King tractor

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Technical Specifications

Detailed specifications and technical data for J.I. Case 680K Construction King

Power

Engine (net)	90 hp (67.1 kW)
Engine (gross)	101 hp (75.3 kW)

Tires

Industrial rear	16.9x24
Industrial front	12.5Lx16

Engine

Type	diesel, 6-cylinder, liquid-cooled
Model	J.I. Case 6-590
Torque	260 lb-ft (352.6 Nm)
Starter	electric
Rated RPM	2200
Torque RPM	1200
Air cleaner	dry
Bore/Stroke	4.02x4.72 inches (102 x 120 mm)
Compression	17:1
Fuel system	direct injection
Power (net)	90 hp (67.1 kW)
Displacement	359 ci (5.9 L)
Oil capacity	12 qts (11.4 L)
Power (gross)	101 hp (75.3 kW)
Starter volts	24
Coolant capacity	27 qts (25.6 L)

Height

Cab	115 inches (292 cm)
Exhaust	121.4 inches (308 cm)
Steering wheel	83.7 inches (212 cm)

Weight

Max rear axle	17380 lbs (7883 kg)
Max front axle	12698 lbs (5759 kg)
Shipping (cab)	15386 lbs (6979 kg)
Shipping (ROPS)	14900 lbs (6758 kg)
Shipping (Extendahoe with cab)	17135 lbs (7772 kg)

Capacity

Fuel	38 gal (143.8 L)
Hydraulic system	13.7 gal (reservoir) (51.9 L)

Dimensions

Width	90.5 inches (229 cm)
Length	275.9 inches (700 cm)
Wheelbase	87 inches (220 cm)
Rear tread	67 inches (170 cm)
Front tread	72 inches (182 cm)

Electrical

Ground	negative
Batteries	2
Battery CCA	600
Battery volts	12
Charging amps	40
Charging system	alternator

Hydraulics

Capacity	13.7 gal (reservoir) (51.9 L)
Pressure	2000 psi (137.9 bar)
Pump flow	25.7 gpm (97.3 lpm)
Total flow	44.4 gpm (168.1 lpm)
Steering flow	18.7 gpm (70.8 lpm)
Additional flow	18.7 gpm (70.8 lpm)
Steering pressure	1750 psi (120.7 bar)

Mechanical

ROPS	ROPS canopy. Optional cab. Optional air-conditioning.
Drive	Two-wheel drive
Steering	hydrostatic power
Final drives	outboard planetary

Production

Type	Backhoe loader tractor
Years made	1986 - 1988
Manufacturer	J.I. Case

Attachments

Front-end loader	5900 lbs lift (full at pin) (2676 kg), 10020 lbs breakout (at pin) (4545 kg), 47° dump, 31 inches reach (dumped) (78 cm), 38° rollback (ground line), 140.3 inches height (at pin) (356 cm), 113 inches clearance (dumped) (287 cm), raise: 5.3s, dump: 1.6s, lower: 3.3s, rollback: 3.6s, Bucket width: 86 inches (218 cm), Bucket width: 96 inches (243 cm)
J.I. Case Backhoe	Backhoe type: J.I. Case Backhoe, Digging depth: 198 inches (502 cm), Reach from pivot: 237.6 inches (603 cm), Loading height: 134.6 inches (341 cm), Bucket Rotation: 157°, Swing Arc: 188°, Bucket force: 11289 lbs (5120 kg), Dipperstick force: 8642 lbs (3920 kg)
J.I. Case Extendahoe Backhoe	Backhoe type: J.I. Case Extendahoe Backhoe, Digging depth (retracted stick): 198 inches (502 cm), Digging depth (extended stick): 260.6 inches (661 cm), Reach from pivot (retracted stick): 240 inches (609 cm), Reach from pivot (extended stick): 288 inches (731 cm), Loading height (retracted stick): 139.5 inches (354 cm), Loading height (extended stick): 167 inches (424 cm), Bucket Rotation: 151°, Swing Arc: 188°, Bucket force (retracted stick): 11812 lbs (5357 kg), Bucket force (extended stick): 11812 lbs (5357 kg), Dipperstick force (retracted stick): 8536 lbs (3871 kg), Dipperstick force (extended stick): 6024 lbs (2732 kg)

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