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The John Deere 644 G-Tier Mid-Size Wheel Loader is a powerful and versatile machine designed to tackle a wide range of material handling tasks with ease. Equipped with a robust engine and advanced features, it delivers reliable performance and exceptional productivity on the job site. The loader boasts a spacious and ergonomic cabin, providing operators with comfort and efficiency during long hours of operation. With its quick-attach system, the 644 G-Tier allows for efficient attachment changes, enhancing versatility and adaptability for various applications. Built to withstand tough working conditions, this wheel loader offers durability and longevity, making it an ideal choice for construction, mining, and other demanding industries.

  • Net Power: 169 kW (227 hp) at 1,800 rpm
  • Operating Weight: 17 934–18 205 kg (39,537–40,135 lb.)
  • Bucket Capacity: 3.1–3.2 m3 (4.00–4.25 cu. yd.)

Product Features for John Deere 644 G-Tier Mid-Size Wheel Loader:

Comfortable and Straightforward Cab Design:

  • Operator-friendly cab design for varying comfort levels based on machine application.
  • Option of standard mechanical seat or air-ride suspension seat for customization.
  • Left-side floor storage area for convenient storage without obstructing foot pedals.
  • Ergonomically placed joystick controls, foot pedals, and sealed-switch module.
  • High-definition adjustable monitor with built-in diagnostic trouble code viewing.

Service and Support Capabilities:

  • Hinged doors on both sides for daily, ground-level access and service.
  • Backed by John Deere’s world-class dealer network for warranty support and maintenance.
  • All daily service points grouped on the left side at ground level for easy access.
  • Utilizes John Deere Connected Support™, JDLink™, Service ADVISOR™ Remote, and Expert Alerts.
  • Real-time data sharing for efficient monitoring and reduced downtime and costs.

Proven and Reliable Major Components:

  • Built on over 50 years of wheel loader experience with common components.
  • Features John Deere PowerTech™ 6.8-L (415-cu in.) engine for improved cooling and durability.
  • John Deere Teammate V axles with pressure-lubed input bearings and brake discs for enhanced cooling.
  • Extended service intervals for lower maintenance costs over the machine’s life.
  • Auto Idle and Auto Shutdown for fuel savings and reduced warranty hours.

User-Friendly Controls for Easy Operation:

  • Intuitive pilot controls suitable for novice and experienced operators.
  • Automatic transmission shifting on the fly for enhanced ease of operation.
  • Optional front differential lock for additional traction in challenging ground conditions.
  • In-cab adjustable boom height kickout, return to carry, and return-to-dig for increased productivity.
  • Clutch cut-off for full engine power to hydraulics during braking, improving cycle times.

Product Specifications for John Deere 644 G-Tier Mid-Size Wheel Loader:

Engine:

  • Manufacturer: John Deere
  • Model: PowerTech PVS 6068H
  • Emission Rating: EPA Tier 4 / EU Stage V
  • Displacement: 6.8 L (414 Inches³)
  • Rated Speed: 1800 rpm
  • Engine Output – Net: 169 kW (227 hp)
  • Torque: 981 Nm (724 lbf/ft)

Transmission:

  • Type: Powershift

Differential:

  • Front Differential Type: Open
  • Rear Differential Type: Open

Tires:

  • Size – Standard: 23.5 R25

Brakes:

  • Service Brake – Type: Wet Disc
  • Service Brake – Actuation: Hydraulic
  • Parking Brake – Type: Wet Multi Disc

Driveline:

  • Height – Over Cab: 3460 mm (11 ft 4 in)
  • Wheelbase: 3260 mm (10 ft 8 in)
  • Ground Clearance: 422 mm (16.6 in)
  • Width Over Tires – Std: 2777 mm (9 ft 1 in)
  • Height – Pivot Pin: 4130 mm (13 ft 7 in)
  • Reach – At 2130mm 45° Dump: 1630 mm (5 ft 4 in)

Dimensions:

  • Fuel Tank: 300 l (79.3 gallons US)
  • Hydraulic Tank: 100 l (26.4 gallons US)
  • Heaped Capacity: 3.1 m³ (4 yd³)
  • Breakout – Bucket: 14462 kgf (31883 lbf)
  • Ride Control System: Optional
  • Pump Type: Piston
  • Pump Flow – 1: 330 lt/min (87 gallons US/min)
  • System Pressure: 231 bar (3350 PSI)

Capacities:

  • Operating Weight: 17934 kg (39537 lbs)

Further information on this machine can be viewed by visiting this link https://www.deere.com/en/loaders/wheel-loaders/mid-size-wheel-loaders/644-g-wheel-loader/

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DISCLAIMER: The information that has been provided in this article is sourced from https://www.deere.com. The author does not assume any responsibility or liability for the accuracy, completeness, or usefulness of the information provided. The author shall not be held liable for any loss or damage resulting from the use of this content. For further information please contact the manufacturer directly.