John Deere 644K Wheel Loader

Specifications

Bucket

Breakout – Bucket

15378 (33903) kgf (lbf)

Bucket Capacity – Smallest

4.06yd3

Largest Bucket Capacity

4.19yd3

Dimensions information

Ride Height

18.15in

Full Length:

27.24ft in

Width Over Tires

9.44ft in

Wheelbase length (Distance between the foremost and rearmost wheels)

10.7ft in

Maximum hinge pin height reach:

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13.52ft in

Reach at Maximum Lift & Dump:

5.29ft in

Turning Circle

43.57ft in

Height Over Cab

11.26ft in

Specifications

Engine specifications

Pump

Piston

Engine Output-Net

232hp

Type

Powershift

Brand

John Deere

Model

PowerTech PSS 6090

Torque

783.3lb ft

Rated Speed

1700rpm

Engine displacement

549.3cu in

PTO Torque Rise (%)

56%

System Voltage

24V

Emission Level

Tier 4

Alternator

130amps

Driveline

Ride Control System

Optional

Service Brake Type

Wet Disc

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Parking Brake Type

Wet Multi Disc – Transmission

Differential Lock

Front- Locking, Rear- Open

Service Brake Actuation

Hydraulic

Tire Size – Standard

23.5 R25

Service Brake – Location

Axle Inboard

Capacities

Hydraulic Tank

27.8gal

Heaped Capacity

4.2yd3

Transmission

6.1gal

Functional specifications

Basic weight of a machine

41186.8lb

Standart fuel tank capacities

104.9gal

Front Axle/Diff Fluid Capacity

5.9gal

Rear Axle/Diff Fluid Capacity

5.9gal

Transmission specifications

Pump Flow

78.5gal/min

System Pressure

251.7psi

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