644 G-tier Wheel Loader

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The 644 G-tier mid-size wheel loader is designed for construction projects in governmental, rental, site development and asphalt industries. Powered by a John Deere 6.8L engine, the machine features John Deere Teammate axles. Customers can customize the machine through a variety of base-level packages, including options related to locking differentials, ride control, seats, radio and rear chassis work lights.

The wheel loaders are eligible for the John Deere Protect Service Plan. With the John Deere Protect Service Plan, routine maintenance is performed at every 500-hour interval by a John Deere dealer. In addition, the John Deere Protect Parts and Fluids Plan provides customers with options to conduct maintenance services and inspection while utilizing their own technicians.

Specifications

Engine Manufacturer: John Deere
Engine Model: PowerTech PVS 6068H
Emission Rating: EPA Tier 4
Displacement: 414-in³.
Rated Speed: 1,800 rpm
Engine Output: 227 HP
Torque: 724 lbf/ft.
Transmission Type: Powershift
Front Differential Type: Open
Rear Differential Type: Open
Tire Size: 23.5 R25
Service Brake – Type: Wet Disc
Service Brake – Actuation: Hydraulic
Parking Brake – Type: Wet Multi Disc
Fuel Tank: 79.3 gallons
Hydraulic Tank: 26.4 gallons
Heaped Capacity: 3.25 m³
Breakout – Bucket: 31,799 lbf
Ride Control System: Optional
Pump Type: Piston
Pump Flow: 87 gallons/minute
System Pressure: 3,350 PSI

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