John Deere 644H MH
Browse All John Deere or Wheel Loader Models
Contents:
Bucket
| Dump Clearance At Max Raise | 9.72 ft in (2962 mm) |
| Bucket Capacity - Heaped | 4.5 yd3 (3.4 m3) |
| Bucket Capacity - Struck | 3.8 yd3 (2.9 m3) |
| Bucket Width | 9.98 ft in (3040 mm) |
| Breakout Force | 34340 lb (152.76 kN) |
Dimensions
| Ground Clearance | 1.56 ft in (473 mm) |
| Length With Bucket On Ground | 25.64 ft in (7815 mm) |
| Width Over Tires | 9.43 ft in (2874 mm) |
| Height To Top Of Cab | 11.2 ft in (3412 mm) |
| Wheelbase | 10.5 ft in (3200 mm) |
| Hinge Pin - Max Height | 13.64 ft in (4156 mm) |
| Reach At Max Lift And Dump | 3.47 ft in (1055 mm) |
Engine
| Number Of Cylinders | 6 |
| Engine Make | 2240 |
| Engine Model | 6081H |
| Net Power | 180 hp (134 kw) |
| Gross Power | 212 hp (158 kw) |
| Power Measured @ | 2200 rpm |
| Max Torque | 745 lb ft (1010.1 Nm) |
| Displacement | 496 cu in (8.1 L) |
| Torque Measured @ | 1300 rpm |
| Aspiration | Turbocharger with Aftercooler |
| Torque Rise | 40 % |
Operational
| Operating Weight | 38927 lb (17657 kg) |
| Fuel Capacity | 90 gal (341 L) |
| Hydraulic System Fluid Capacity | 31 gal (117 L) |
| Engine Oil Fluid Capacity | 6.7 gal (25 L) |
| Cooling System Fluid Capacity | 7.7 gal (29 L) |
| Transmission Fluid Capacity | 6.9 gal (26 L) |
| Front Axle/Diff Fluid Capacity | 7.2 gal (27 L) |
| Rear Axle/Diff Fluid Capacity | 7.2 gal (27 L) |
| Static Tipping Weight | 30906 lb (14019 kg) |
| Turning Radius | 18.1 ft in (5500 mm) |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 55 amps |
| Rear Axle Oscillation | 26 degrees |
| Tire Size | 23.5-25 |
Transmission
| Transmission Type | Power Shift |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 3 |
| Max Speed - Forward | 24 mph (39 km/h) |
| Max Speed - Reverse | 16.4 mph (26.7 km/h) |
Hydraulic System
| Relief Valve Setting | 3600 psi (24850 kPa) |
| Pump Flow Capacity | 74 gal/min (280 L/min) |
| Raise Time | 6 sec |
| Dump Time | 1.2 sec |
| Lower Time | 3 sec |
| Pump Type | Piston Pump |
