John Deere 644GH Wheel Loader
Wheel Loader // John Deere
John Deere 644GH Bucket
| Breakout Force: | 38045 lbs (17,257 kg) |
| Bucket Capacity - heaped: | 4 cu yds (3 m) |
| Bucket Capacity - struck: | 3.7 cu yds (3 m) |
| Bucket Width: | 10.1 ft (3 m) |
John Deere 644GH Dimensions
| Dump Clearance at Max Raise: | 9.7 ft (3 m) |
| Ground Clearance: | 1.6 ft (0 m) |
| Height - Top of Cab: | 11.3 ft (3 m) |
| Hinge Pin - Max Height: | 13.2 ft (4 m) |
| Length with Bucket on Ground: | 25.8 ft (8 m) |
| Reach at Max Lift and Dump: | 3.5 ft (1 m) |
| Wheelbase: | 10.5 ft (3 m) |
| Width Over Tires: | 9 ft (3 m) |
John Deere 644GH Engine
| Aspiration: | Turbocharged and Aftercooled |
| Displacement: | 466 cu in (0 m) |
| Engine Model: | 6076A |
| Gross Power: | 196 hp (146 kw) |
| Net Power: | 185 hp (138 kw) |
| Number of Cylinders: | 6.0 |
| Power Measured @: | 2200 rpm |
| Torque Measured @: | 1300 rpm |
John Deere 644GH Hydraulic System
| Dump Time: | 1.8 sec |
| Lower Time: | 3.5 sec |
| Pump Flow Capacity: | 69.5 gal/min (263 l/min) |
| Pump Type: | Gear pump type |
| Raise Time: | 6.2 sec |
| Relief Valve Setting: | 3000 psi |
John Deere 644GH Operating Specifications
| Alternator Supplied Amperage: | 95 A |
| Cooling System Fluid Capacity: | 7.6 gal (29 l) |
| Engine Oil Fluid Capacity: | 6.4 gal (24 l) |
| Front Axle/Diff Fluid Capacity: | 7.4 gal (28 l) |
| Fuel Capacity: | 75.1 gal (284 l) |
| Hydraulic System Fluid Capacity: | 30.4 gal (115 l) |
| Operating Voltage: | 12 V V |
| Operating Weight: | 36634 lbs (16,617 kg) |
| Rear Axle Oscillation: | 26 ° |
| Rear Axle/Diff Fluid Capacity: | 7.4 gal (28 l) |
| Static Tipping Weight: | 29712 lbs (13,477 kg) |
| Tire Size: | 20.5-25 |
| Transmission Fluid Capacity: | 18 ft (5 m) |
| Turning Radius: | 3.7 gal (14 l) |
| Max Speed - Forward: | 18 ft (5 m) |
John Deere 644GH Transmission
| Max Speed - Reverse: | 21.5 mph (35 kph) |
| Number of Forward Gears: | 13.7 mph (22 kph) |
| Number of Reverse Gears: | 4.0 |
| Transmission Type: | 3.0 |
