John Deere 444J User Manual

125–180 SAE NET HORSEPOWER

444J | 544J | 624J

LOADERS

POWERLLEL LINKAGE

™

Take versatility

to a higher level.

Nearly everyone offers tool carriers. But John Deere’s Powerllel something else. Their innovative linkage design provides an unmatched combination of powerful digging performance, level lift, and unsurpassed visibility throughout the entire boom range. Add to that the J-Series

™

loaders are

loaders’ highly popular Quad-Cool low-effort excavator-style pilot-operated hydraulics, smooth-as-silk powershift transmission, and multi-function sealed switch module, and you’ve got a highly versatile and reliable material mover that’s in a class by itself.

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™

system,

FPO: 127375

Powerllel Loader key specifications

444J 544J 624J

Peak Net Horsepower...........125 .................160.................180

Bucket Capacity....................2.5 cu. yd........3.0 cu. yd........3.5 cu. yd.

Full Turn Tipping Load..........14,330 lb. .......17,470 lb. .......19,889 lb.

Powerful digging forces and parallel lift — the Powerllel linkage’s patented design delivers the best of both. So you can have your loader and forklift, too.

Refined torque curves in all three loaders deliver impressive torque reserves of 37, 41, and 54 percent. For extra power when you need it.

444J and 544J ride on a wide stance, providing additional lateral stability for handling heavy loads and working on rough terrain.

Breakout Force .....................16,233 lb........21,372 lb. .......28,102 lb.

Operating Weight..................23,926 lb........28,625 lb. .......33,534 lb.

Worksite Pro™quick-coupler lets you quickly and easily switch attachments without leaving the seat. It’s standard equipment, letting you go from bucket, to forks, to whatever, and do more with one machine.

Operators benefit from a virtually unobstructed view that takes the work out of precisely placing loads — whether it’s pipe on trailers or aggregate into trucks.

Want to test the power of these loaders? Demo one against a comparable-size tool carrier in tough digging. The result will win you over.

Standard Worksite Pro™quick-coupler lets you change attachments from the cab quickly and easily. Accommodates a wide variety of Worksite Pro buckets and forks.

1. The power in the Powerllel™linkage

comes from an innovative design that allows load forces to work with, not against, the boom. For big breakout in tough digging.

2. Unique Y-link,low-mounted boom

cylinders, and high-visibility forks

provide clearly superior visibility throughout the entire lift arc.

3. Unlike others that lose performance past

the level bucket position, Powerllel loaders deliver outstanding breakout throughout the entire bucket and angle range. To conquer tough tasks such as loading logs and above-ground-level digging.

Power + parallel lift =

Powerllel

Who says you have to sacrifice loader power to get parallel lift? Powerllel loaders deliver the best of both. Unlike traditional linkages, John Deere’s unique design separates the bell crank from the cross tube, attaching instead to the loader tower through a unique Y-shape link. This “free-floating” bell crank nearly doubles boom cylinder torque — for unsurpassed boom and bucket breakout,

even in tough digging. Impressive torque throughout the entire dump and rollback range also makes these machines ideal for tough tasks such as sorting or loading logs. But don’t just look for these Powerllel advantages in the pages of a spec sheet. The best way to appreciate them is on your jobsite. Wherever the job, whatever the load, you’ll discover parallel lift with no parallel.

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Hard work never

felt this easy.

From the convenient controls that customize machine operation, to the comfortable fully adjustable armchair seat, the J-Series loaders have everything your operators need to be their productive best. All-around visibility is unobstructed, and an improved HVAC system helps keep the view clear, the cab comfortable. Your choice of single-

or two-lever pilot-operated controls and an all-new sealed switch module allow convenient, fingertip control of multiple machine operations. Up-front, a state-ofthe-art multi-function monitor with easy-toread messaging, large analog gauges, and LED warning lights provides vital machine information at a glance.

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Conveniently positioned switch module helps reduce operator fatigue with clearly visible backlit and sealed controls.

Standard air-ride armchair seat adjusts multiple ways for extra comfort.

Eleven automotive-style louvers including two directed at the pedals and independently adjustable defrosters provide effective airflow to help keep the glass clear and the pressurized cab comfortable.

1. Choose from single-lever joystick or two-lever

fingertip pilot-operated controls. Single-lever control can also be equipped with an optional fingertip FNR selector for convenient direction and full-range gear changes. Both controls also include John Deere’s innovative Quick-Shift feature that allows pushbutton gear changes, one gear at a time.

2. Advanced, multi-language monitor with analog

gauges and LED indicators provides:

A. Vital and general operating information

including transmission mode, gear, engine rpms, and ground speed.

B. Diagnostic readings of most sensors and

switches, enabling technicians to quickly

troubleshoot problems.

C. Customized machine settings that let an

operator match operating characteristics to specific applications by preselecting transmission functions such as Quick Shift and Auto-to-1st for maximum productivity.

A B

Since the hydraulic system provides only the power required, there’s no wasted horsepower or fuel.

When rpms drop below 2,200, the horsepower actually goes up.

The John Deere Power Bulge advantage helps maintain good boom and bucket speed into the pile.

Smart-shift technology ensures that gear changes are smooth as silk, regardless of whether the bucket is empty or fully loaded.

Responsive steering and full 80-degree articulation increase maneuverability in tight quarters — for fast cycle times and fewer “three-point” turns.

1. Backlit buttons in the sealed switch

module allow fingertip control of numerous functions. No tools are required to adjust boom height kick-out, return-to-carry, or return-to-dig. Instead, the operator sets these from the seat.

2. Return-to-dig places the attachment

at a predetermined level position. The switch has two presets, for increased convenience and productivity in applications requiring frequent changeover between attachments.

3. Boom height kick-out sets maximum

desired dump height, while return-tocarry sets the lowered boom position. Use these two John Deere advantages to speed production in repetitive loading applications.

More power and

control means

more productivity.

If you’ve got maximum productivity in mind, the J-Series loaders deliver. But it’s not just their torque reserves and Power Bulge advantage that make these such impressive performers. Excavator-style hydraulics sense the load and deliver the multi-function power needed for fast

work cycles. You won’t find a smoother shifting loader, either. The powershift torque-converter transmission employs smart-shift technology to continuously evaluate speed and load conditions, and adjusts clutch-pack engagement to suit. For more productivity without extra effort.

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