3517 Railroad Avenue Alexander, NY 14005
(585) 591-1670
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5614 Tec Drive Avon, NY 14414
(585) 226-9680
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7689 Ridge Road West Brockport, NY 14420
(585) 637-3700
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2818 Earlystown Road Centre Hall, PA 16828
(814) 364-1421
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9570 County Rd Clarence, NY 14032
(716) 741-9115
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8926 W. Main Street Clymer, NY 14724
(716) 355-4236
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49290 State Route 14 East Palestine, OH 44413
(330) 426-2166
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13521 Cambridge Springs Rd. Edinboro, PA 16412
(814) 734-1552
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7852 RT 66 Fairmount City, PA 16224
(814) 764-5159
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1756 Lindquist Drive Falconer, NY 14733-9720
(716) 665-3110
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817 Tobias Road Halifax, PA 17032
(717) 362-3132
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4751 County Road 5 Hall, NY 14463
(585) 526-6325
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8011 Paxton St. Harrisburg, PA 17111
(717) 583-2101
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185 Route 31F Macedon, NY 14502
(585) 425-4428
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5809 William Penn Highway Mifflintown, PA 17059
(717) 436-5553
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7615 Lewiston Road Oakfield, NY 14125
(585) 948-5261
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13330 Rt.31 Savannah, NY 13146
(315) 594-0115
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336 Vaughn Street Springville, NY 14141
(716) 592-4058
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4488 Greenville-Sandy Lake Rd. Stoneboro, PA 16153
(724) 376-3740
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141 Byers Lane Watsontown, PA 17777
(570) 538-3557
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LandPro Equipment; NY, OH & PA

John Deere 644 X-Tier Mid-Size Wheel Loader

644 X-Tier  Mid-Size Wheel Loader Model Photo

 

Features

Innovative John Deere E-Drive System delivers premium performance and efficiency

E-Drive system in a 644 X-tier loader E-Drive system in a 644 X-tier loader
E-Drive system components E-Drive system components
What it Is

The Electric Drive system (E-Drive) is composed of a brushless electric generator and motor, power electronics (inverter), an electric brake resistor, and a simplified PowerShift™ transmission. This E-Drive system offers next level size class performance, ease of operation, and longevity to customers that invest in this innovative technology. The entire system works to dynamically adjust engine speed to meet tractive and hydraulic loads, ensuring 644 X-tier loaders can maintain stockpiles, heap hoppers, and load trucks with the highest efficiency. All of John Deere’s E-Drive components are performance proven with over 2 million field hours accumulated and counting.

How It Works
  • Brushless generator converts rotational energy from the engine into 3-phase alternating current (AC) electrical energy
  • AC energy is supplied to the inverter, which delivers energy to the motor based on operator demand
  • Single brushless electric motor converts AC energy back to rotational energy and torque, replacing the job of a torque converter
  • Simplified PowerShift™ transmission maintains smooth shifting across four operating speed ranges
  • When decelerating, the electric motor can also act as a generator to recapture energy from the loader’s inertia and recycle it back into the system
  • Brake resistor passively consumes excess recycled energy whenever the inverter actively controls its circuit
Why it Matters
  • Electric motor doubling as a generator when decelerating reduces engine load and fuel consumption
  • Electric motor turns transmission bi-directionally to switch from forward to reverse, eliminating directional control clutch pack from transmission and reducing shifting
  • Brake resistor dissipates excess recaptured energy, reducing brake wear and lowering maintenance costs
  • Maintaining a constant engine speed of 1600 rpm reduces engine wear and increases fuel efficiency without sacrificing performance
  • The inverter constantly monitors all energy in the system and determines the most efficient path
  • Brushless motor and generator provide quieter operation ideal for commercial and residential areas

E-Drive enables increased productivity and unique machine features

644 X-tier in a rock quarry 644 X-tier in a rock quarry
Overview

The E-Drive delivers similar or better productivity benefits over conventional drive train machines while burning less fuel against machines in its size class and those in the next size class up. Several different features and modes assist 644 X-tier loaders with achieving this productivity across a range of jobsite applications. Whether operators are looking to control engine speed, torque, or idle, there are many John Deere exclusives and unique innovations available to deliver the best user experience.

Productivity Advantages
  • The Deere 644 X holds its own against loaders within its size class and those in the next size class up, having higher or similar productivity in common applications like Hopper Loading and Stockpiling
  • The 644 X also averages a 10-13 percent fuel efficiency advantage over the competition meaning that it delivers similar or higher levels of productivity while burning less fuel
  • Due to the innovative E-Drive system, the 644 X has the fastest acceleration times on both flat terrain and up a standard sloped ramp when compared to competing machines
E-Drive Features and Performance Modes
  • Coast Control enables dynamic braking to slow the machine and reduce fuel consumption compared to machines without this feature. Three setting levels allow the operator to adjust the aggressiveness of machine deceleration with the use of electric brake resistors. When enabled, one pedal controls forward movement as well as dynamic braking.
  • Normal Mode adjusts engine speed to match load requirements – nothing more, nothing less. Engine speed automatically adjusts up to either 1450 or 1600 RPM to meet hydraulic and tractive loads.
  • Productivity Mode holds engine speed steady at either 1450 or 1600 RPM and is ready to deliver power when needed. Operator does not need to wait for RPM to increase which reduces cycle times and increases productivity compared to normal mode.
    • Maintaining a constant engine speed reduces engine wear and increases fuel efficiency without sacrificing performance versus running at rated engine speed. Specifically, the 644 X-tier consumes 10 percent less fuel than the 644 P-tier model in hopper loading applications while offering similar productivity.
Additional Features
  • Rimpull Control limits torque to the wheels when operating in soft or slippery conditions to minimize tire spin and slicing. It also optimizes traction when pushing into a pile to get a fuller bucket. Rimpull control settings are selected on the SSM through four increments that decrease the amount of torque to the wheels.
  • Auto Idle automatically reduces engine speed when machine is not in motion and no functions are activated. Auto Shutdown shuts the machine down after a period of inactivity. Both help to lower fuel costs and save machine warranty hours.
  • Throttle Lock maintains a specified rpm so the operator can warm up a machine, or road the machine without having to hold the throttle pedal down.

Leading in sustainability through fuel and maintenance benefits

644 X-tier utility loader 644 X-tier utility loader

The 644 X-tier is the most fuel-efficient machine in its size class and in the next size class up meaning that it can move more material while burning less fuel. This allows operations to put more material through the crusher or asphalt plant while burning less fuel, providing most of its sustainability benefits. In addition, it’s design efficiencies recognize environmental impact reductions to lower carbon emissions and reduce the machine’s overall environmental impact.

  • The 644 X burns up to 10 percent less fuel than competitors within its size class and up to 15 percent less fuel than competitors in the next size class up in common applications. These numbers translate into approximately 150,000 kg of CO2 that is prevented from entering the atmosphere over 15,000 machine hours, the equivalent amount of the electricity used by 11 homes over a years’ time.
  • Lower volumes of oil and fluids are required when performing recommended preventative maintenance, saving up to 1,700 kg of CO2 over 15,000 hours of operation compared to competitive machines. This is the equivalent of charging around 200,000 cellphones.
  • Electric Drive components are designed to last in excess of 30,000 hours, meaning they can remain with the machine throughout its entire life without needing to be replaced. This extends the longevity of the machine and lowers the overall manufacturing footprint.

All day comfort in the redesigned cab

View of the newly redesigned cab from left-side entrance View of the newly redesigned cab from left-side entrance
Additional 12V power port, USB, and Auxiliary Port Additional 12V power port, USB, and Auxiliary Port
Rear Vent Rear Vent
Updated SSM mounted on the right side cab post beneath the monitor Updated SSM mounted on the right side cab post beneath the monitor
Overview

The redesigned cab in the John Deere utility loader lineup features improvements that provide the operator with a first-class work environment and a range of creature comfort options to keep them comfortable and productive no matter what task is at hand.

Benefits
  • An additional 3 in. of leg room has been added over the previous series loaders
  • Dual tilt steering column allows for dual tilt between the column and wheel to allow operators to customize the position of the steering wheel to their needs
  • Additional 12V power ports have been strategically placed for proper powering of devices and a USB port has been added for connecting to the radio
  • Auxiliary accessory mounting points are strategically placed on the right front and rear cab posts for equipment such as a payload scale interface or CB radio
  • Upgraded HVAC system to improve cooling capacity, more precise control and increased reliability and durability
    • AC unit has been relocated to the right side of the cab for easier access and service
    • The fresh air filter exchange is made through the top of the unit located outside the cab.  This allows the dirty filter to be replaced completely outside of the operator compartment
    • Brushless motor provides infinite fan speeds, quieter operation, and increased airflow
    • Standard blower vent behind the seat for rear window defrost that is adjustable to control direction of air flow
  • The sealed switch module has been updated and relocated on L-series and P-tier loaders. The new location brings the switches to the operator’s line of sight during operation for quick reference and ease of selection and has updated and new functions
    • Selecting the About button on the main menu of the monitor, then going down to the SSM feature button the next screen takes you to a menu where you can view each button on the SSM and learn more about each feature

Increase the loader’s functionality with EH Controls

Built in EH controls within the right-hand joystick Built in EH controls within the right-hand joystick
Overview

Electrohydraulic (EH) controls allow operators to customize machine operations based on preference to achieve maximum productivity across a range of jobsite applications.

Benefits
  • Enable soft hydraulic stops to select how abrupt the bucket or boom stops when they reach the end of travel or when the lever of the joystick is released
  • Personalize multi-function buttons 1 and 2 through 10 options within the monitor including bucket vibrate that creates a slight vibrating action for precise control when dumping specific material or EH Precision Mode that allows for fine metering of bucket or boom movement.
  • Set and store up to 10 different attachment configuration settings including flow, responsiveness, and other modes through the monitor for the most frequently used attachments in your fleet.
Additional Details
Quick Shift EH Precision Mode
Horn Bucket Vibrate
Soft Stop Disable Add Truck
Diff Lock Increment Counter
Add Bucket (if equipped) 5th/6th Function (if equipped)
Aux Electrical Output (if equipped)  
Multi-Function Button Programmable Options
  • Bucket Vibrate creates a slight vibrating action of the bucket for more precise control when dumping a specific amount of loose material. This is good in applications where operators need to  meter loose dry material into a wagon or hopper, sprinkling rock in a pipe laying application, or for spreading an even layer of rock for road base.
  • EH Precision Mode allows fine metering of bucket or boom movement when precision loader functions are required. This scales back on the aggressiveness of the functions during operation as well as limits flow. The feature is best utilized in any application that requires reduced hydraulic function speed such as laying pipe or installing manholes.

Reach higher and move more material with bucket and Z-Bar linkage improvements

644 X-tier loader with standard Z-Bar Linkage 644 X-tier loader with standard Z-Bar Linkage
Improved Visibility from the Seat of the Cab Improved Visibility from the Seat of the Cab
Improved bucket rollback and material retention Improved bucket rollback and material retention
Overview

The Z-Bar linkage has been completely redesigned to improve visibility and provide a high degree of parallelism while the upgrades made to the enhanced performance bucket offerings help increase productivity.

Benefits
  • Cross tube and boom geometry changes mean improved visibility to front attachments when operating and changing out
  • Standard 8 degrees of parallelism minimizes load roll back when using forks to improve load leveling
  • High-Lift linkage adds an additional 12” of hinge pin height over standard linkage
  • Bucket material retention has been improved by providing a 15 degree increase in bucket rollback to reduce material spillage
  • Curved side cutters and integrated spill guards improve bucket fill rates

DRIVELINE

Engine Manufacturer John Deere
Engine Model PowerTech PSS 6068
Emission Rating EPA Tier 4 / EU Stage V
Displacement, ltr (Inches³) 6.8 (415)
Rated Speed, rpm 1500
Engine Output - Net, kW (hp) 172 (231)
Torque, Nm (lbf / ft) 1095 (808)
Transmission Type Powershift w/Hybrid-Electric Drive
Front Differential Type Locking
Rear Differential Type Open
Tire size - Standard 23.5 R25
Service Brake - Type Wet Disc
Service Brake - Actuation Hydraulic
Parking Brake - Type Wet Multi Disc

DIMENSIONS

Height - Over Cab, mm (ft/in) 3450 (11 ft 4 in)
Wheelbase, mm (ft/in) 3310 (10 ft 10 in)
Ground clearance, mm (inches) 386 (15.2)
Width Over tires - Std, mm (ft/in) 2875 (9 ft 5 in)
Height - Pivot Pin, mm (ft/in) 4090 (13 ft 5 in)
Reach - At 2130mm 45° Dump, mm (ft/in) 1610 (5 ft 3 in)

CAPACITIES

Fuel Tank, ltr (gallons (US)) 350 (92.6)
Hydraulic Tank, ltr (gallons (US)) 103.4 (27.3)
Heaped Capacity, m³ (yd³) 3.2 (4.25)
Breakout - Bucket, kgf (lbf) 15574 (34334)
Ride Control System Optional
Pump Type Piston
Pump Flow - 1, lt/min (gallons (US) / min) 265 (70)
System Pressure, bar (PSI) 251.66 (3650)

WEIGHTS

Operating Weight, kg (lbs) 18856 (41571)