John Deere industrial tractors

John Deere 444D

The John Deere 444D is a wheel loader produced from 1985 to 1987. It features a John Deere 5.4L 6-cylinder diesel engine delivering 97 hp gross and 90 hp net power. The tractor has a 4-speed power shift transmission with 4 forward and 2 reverse gears. It is equipped with four-wheel drive, articulated power steering, hydraulic wet disc brakes, and a four-post ROPS with canopy, with an optional cab with air-conditioning. The loader attachment offers a lift capacity of 7110 lbs and breakout force of 17000 lbs, with various operational angles and times. The 444D has a wheelbase of 94.5 inches, length of 231.1 inches, and operating weight of 19220 lbs. It uses industrial tires sized 15.5-25, 13.00-24, and 17.5-25. The hydraulic system is open center with 2250 psi pressure and 40.8 gpm pump flow. Electrical system includes a 12-volt battery with 625 CCA and alternator charging.

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Model444D

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Technical Specifications

Detailed specifications and technical data for John Deere 444D

Power

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

Tires

Industrial rear	15.5-25, 13.00-24, 17.5-25
Industrial front	15.5-25, 13.00-24, 17.5-25

Engine

Type	diesel, 6-cylinder, liquid-cooled
Model	John Deere 6-329D
Torque	247 lb-ft (334.9 Nm)
Starter	electric
Fuel tank	50 gal (189.2 L)
Rated RPM	2400
Torque RPM	1300
Air cleaner	dry
Bore/Stroke	4.02x4.33 inches (102 x 110 mm)
Power (net)	90 hp (67.1 kW)
Displacement	329 ci (5.4 L)
Oil capacity	12 qts (11.4 L)
Power (gross)	97 hp (72.3 kW)
Starter volts	12
Coolant capacity	22 qts (20.8 L)

Dimensions

Length	231.1 inches (586 cm)
Wheelbase	94.5 inches (240 cm)
Rear tread	70 inches (177 cm)
Front tread	70 inches (177 cm)
Height (ROPS)	119 inches (302 cm)
Height (exhaust)	116 inches (294 cm)
Operating weight	19220 lbs (8718 kg)

Electrical

Battery CCA	625
Battery volts	12
Charging system	alternator
Cab Charging amps	90
ROPS Charging amps	42

Hydraulics

Type	open center
Pressure	2250 psi (155.1 bar)
Pump flow	40.8 gpm (154.4 lpm)

Mechanical

ROPS	Four-post ROPS with canopy. Cab optional with available air-conditioning.
Drive	Four-wheel drive
Brakes	Hydraulic wet disc brakes
Steering	Articulated power steering
Final drives	inboard planetary

Production

Type	Wheel Loader
Years made	1985 - 1987

Attachments

Loader	Boom rod2.25 inches (5 cm) Dump time1.5s Bucket rod2.25 inches (5 cm) Dump angle46.5° Lower time3.4s Raise time5.9s Bucket width88 inches (223 cm) Boom cylinder5.25 inches (13 cm) Breakout force17000 lbs (7711 kg) Reach (dumped)32.9 inches (83 cm) Bucket cylinder5.25 inches (13 cm) Height (at pin)125.3 inches (318 cm) Clearance (dumped)109.2 inches (277 cm) Rollback (ground line)40° Lift capacity (full at pin)7110 lbs (3225 kg)

Loader

Boom rod2.25 inches (5 cm)

Dump time1.5s

Bucket rod2.25 inches (5 cm)

Dump angle46.5°

Lower time3.4s

Raise time5.9s

Bucket width88 inches (223 cm)

Boom cylinder5.25 inches (13 cm)

Breakout force17000 lbs (7711 kg)

Reach (dumped)32.9 inches (83 cm)

Bucket cylinder5.25 inches (13 cm)