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Net engine power is with standard equipment including air cleaner,
exhaust system, alternator,and cooling fan at test conditions per
ISO9249. No derating is required up to 5,000-ft.(1525 m) altitude
for the 444J and the 544J and up to 10,000-ft. (3050 m) altitude
for the 624J.
Specifications and design subject to change without notice.Wherever applicable, specifications are in accordance with ISO standards.
Except where otherwise noted, these specifications are based on units with standard equipment,ROPS cab,one optional rear counter-
weight, rear cast bumper/counterweight,20.5R25 tires, full fuel tank, and 175-lb.(79 kg) operator.
DKAJULDR Litho in U.S.A. (07-04)
444 544 624
Engine
●●●
Complies with EPA Tier 3 regulations
●●● Wet-sleeve cylinder liners
●●● Electronically controlled fuel system
●●● Automatic derating when system temperatures exceeded
●●● Under-hood muffler
●●● Under-hood dual-element air cleaner with restriction
sensor in cab monitor
●●● Under-hood pre-screened air intake
●●● Fuel filter/water separator with sensor
●●● Heavy-duty steel fuel tank guard
●●● 500-hour spin-on oil filter
●●● Polyvee drive belt with automatic tensioner
●●● Starter protection circuit
● Automatic glow plugs for cold start
▲▲ Ether start aid (required for cold starting down to
–13°F [–25°C])
▲▲▲ 110-volt engine coolant heater (required for cold
starting below –13°F [–25°C])
▲▲▲ Chrome exhaust stack
▲▲▲ Centrifugal engine air pre-cleaner
Cooling
●●●
Heavy-duty trash-resistant high-ambient cooling package
●●● Two-side access to all coolers
●●● Cooling system isolated from engine compartment
●●● Cool-on-demand hydraulically driven swing-out fan
●●● Charge air cooler (air/air – 6.5 fins per in.)
●●● Transmission oil cooler (oil/air – 6.5 fins per in.)
●●● Hydraulic oil cooler (oil/air – 6.5 fins per in.)
●●● Engine radiator (7.5 fins per in.)
●●● Integral engine oil cooler
●●● Fan guard
▲▲▲ Axle coolers (6.5 fins per in.)
▲▲▲ Reversing fan drive — auto control with manual override
▲▲▲ Harsh-environment coolers for corrosive environments
Powertrain
●●●
ZF torque-converter powershift transmission — 4F/3R
●●● Electronically controlled,adaptive, load- and speed-
dependent shift modulation
▲▲▲ F-N-R and gearshift in single-lever loader control
▲▲▲ Steering-column-mounted shift lever with gearshift,
F-N-R, and lock
●●● Auto-shift/manual-shift modes
●●● Quick-shift button in hydraulic-control lever with two
selectable modes
●●● Transmission clutch disconnect (cutoff) with three
selectable settings
●●● Gear lockout on transmission
●●● Clutch calibration engaged from cab monitor
●●● Vertical spin-on transmission filter
●●● Integral transmission sight gauge/fill tube
●●● Spring-applied, hydraulically released,sealed,wet-
disc park brake
●●● Lube-for-life U-joints
● Heavy-duty mid-board planetary final drives
●● Heavy-duty inboard planetary final drives
●●● Front axle with hydraulic locking differential
▲▲▲ Front and rear axle with open differential*
▲▲ Front-axle disconnect
●●● Remote-axle breathers
▲▲▲ Wheel spin-control system
Hydraulic System
●●●
Pressure-compensating load-sensing hydraulic system
●●● In-cab adjustable automatic boom height kickout control
●●● In-cab adjustable automatic boom return-to-carry control
●●● Reservoir sight gauge
●●● Spin-on hydraulic filters,vertical mounting
●●● Hydraulic function enable/disable button
●●● Two-function hydraulic valve with single-lever joystick
control
●●● Adjustable wristrest
444 544 624
Hydraulic System
(continued)
▲▲▲ Two-function hydraulic valve with two-lever fingertip
controls
▲▲▲ Three-function hydraulic valve with single-lever joy-
stick control and auxiliary lever for third function
▲▲▲ Three-function hydraulic valve with two-lever fingertip
controls, adjustable wristrest,and auxiliary lever for
third function
▲▲▲ Four-function hydraulic valve,with dual single-lever
joystick controls
▲▲▲ Hydraulic conversion kits,two-to-three- and three-to-
four-function valves
▲▲▲ Ride control,automatic with monitor-adjustable speed
settings
▲▲▲ Hydraulic control system for quick-coupler locking pins
Electrical
●●●
24-volt electrical system
●●● Solid-state electrical power distribution system
●●● High-capacity batteries (2), 12 volt with 950 CCA,
200-min. rated reserve
●●● Master electrical disconnect switch
●●● Alternator,high capacity, 80 amps and 24 volts
▲▲▲ Alternator,100 amps
●●● Lights (conform to SAE 99):Halogen driving with
guards / Turn signals and flashers / Stop and taillights
●●● LED heavy-duty taillights and rear turn signals
●●● Work lights,halogen (4):cab front (2) and cab rear (2)
●●● Horn,with push button in center of steering wheel
(conforms to SAE J994, J1446)
●●● Reverse warning alarm (conforms to SAE J994,J1446)
●●● Computerized multifunction monitor
●●● Audible and visual warnings:Amber caution / Red
stop / Analog gauges:Engine coolant temperature,
transmission oil temperature, fuel level,hydraulic oil
temperature, engine oil pressure / Digital instruments:
Engine rpm, odometer,transmission gear/direction
indicator,speedometer,hour meter / operator warning
lights: Check engine,engine air filter restriction,battery
voltage, transmission oil filter restriction,brake pres-
sure, hydraulic oil filter restriction,fasten seat belt,
transmission fault, hydraulic oil temperature
●●● Indicator lights: Park brake / Ride control / Turn signals
and warning flashers / Coupler pin disconnect / Engine
preheater / Secondary steering / Work lights
●●● Built-in diagnostics: Fault code retrieval
▲▲▲ AM/FM/WB stereo radio with clock
▲▲▲ AM/FM/WB stereo radio with CD
▲▲▲ 5-amp,12-volt convertor with one power plug
▲▲▲ 10-amp,12-volt convertor with two power plugs
●●● Cab wired for rotating beacon
▲▲▲ Electrical corrosion-prevention package
Operator’s Station
●●●
Canopy (conforms to SAE J1040 APR88):ROPS/FOPS /
Multiplane isolation mounted for noise/vibration reduc-
tion / Optional canopy rear window glass, for noise
reduction
▲▲▲ Cab (conforms to SAE J1040 ARP88): ROPS/FOPS /
Air conditioning / Heater/defroster / Multiplane isola-
tion mounted for noise/vibration reduction / Front and
rear windshield washers and intermittent wipers /
Tinted safety glass
▲▲▲ Canopy rear window
●●● Seat belt, 3 in.(76 mm),with retractor
●●● Air-suspension seat, deluxe vinyl covered with deep
foam, high back,adjustable for weight-height,fore-
aft position, backrest tilt,and armrest angle
▲▲▲ Air-suspension seat, deluxe cloth covered with deep
foam, high back,adjustable for weight-height,fore-
aft position, backrest tilt,and armrest angle
●●● Seat backrest extension
●●● Cup holder,personal cooler holder
▲▲▲ Sun visor for cab
444 544 624
Operator’s Station
(continued)
●●● Storage compartment for operator’s manual and
other items
●●● Rubber floormat
●●● Tilt steering column
●●● Steering wheel,textured, with spinner knob
●●● Rearview mirrors, outside (2) and inside (1) (conform
to SAE J985)
●●● Handholds and steps,ergonomically located and slip
resistant (conform to SAE J185)
Loader Linkage
●●●
Loader boom service locking bar (conforms to SAE J38)
●●● Z-bar loader linkage
▲▲▲ Powerllel
TM
linkage for visibility and parallel-lift
▲▲▲ High-lift Z-bar loader linkage
Buckets and Attachments
▲▲▲ Full line of Deere pin-on buckets with selection of
bolt-on cutting edges and teeth-segmented bolt-on
cutting edges*
▲▲▲ Full line of Deere construction utility forks for couplers
▲▲▲ Worksite Pro
TM
quick-coupler which accepts JRB-
pattern attachments
▲▲▲ Hi-vis coupler which accepts Euro-pattern attachments
▲▲▲ Bolt-on fork frame guard
▲▲▲ Hydraulic control system for quick-coupler locking
pins, includes all controls in the cab,lines, and valves
Tires
●
17.5 R 25, L-3T
▲ 17.5 R 25,L-2
▲ 17.5-25,12 PR L-3
▲ 17.5-25,L-2
▲ 20.5-25,12 PR L-2
● 20.5 R 25, L-3T
▲▲▲ 20.5 R 25,1 Star L-2
● 20.5 R 25, 1 Star L-3
▲ 20.5-25,12 PR L-2
▲▲ 20.5-25,16 PR L-2
▲▲ 20.5-25,16 PR L-3
▲ 550/65 R 25,1 Star L2
▲▲ 600/65 R 25,L-3T
▲ 23.1-26 Logger
▲ 28L-26 Logger
▲ Single-piece rims
●●● Multi-piece rims
▲▲▲ Less wheels and tires
▲▲▲ 8-deg.rear axle stops for extra-large tires and chains
Other
▲▲▲ Sound-suppression package (Level 1)
▲▲▲ Sound-suppression package (Level 2)
●●● Fenders,front
▲▲▲ Fenders,full-coverage, front
▲▲▲ Fenders,full-coverage, front and rear
▲▲▲ Close-mounted steps
●●● Articulation locking bar (conforms to SAE J276)
●●● Front and rear tie-down points
●●● Vandal protection,includes lockable engine enclosure
and fuel fill
▲▲▲ Environmental drain valves with hose (engine,trans-
mission, hydraulic oils,and axle coolant)
▲▲▲ Fluid-sampling ports (engine,transmission, hydraulic,
axle oils, and engine coolant)
●●● Drawbar,with locking pin
▲▲● Rear cast bumper/counterweight with integral drawbar
▲▲▲ Transmission side frame guards
▲▲▲ Bottom guards,front frame and transmission
▲▲▲ Lift eyes
▲▲▲ Fire extinguisher
▲▲▲ License plate bracket and light
▲▲▲ Secondary steering
▲▲▲ Loadrite
TM
weighing system
▲▲▲ Special guarding for waste applications
▲▲▲ JDLink
TM
444J / 544J / 624J LOADERS
Key: ● Standard equipment ▲ Optional equipment *See your John Deere dealer for further information.