John Deere 644H
Browse All John Deere or Integrated Tool Carrier Models
Contents:
Dimensions
| Length W/ Bucket On Ground | 27.12 ft in (8266 mm) |
| Width Over Tires | 9.43 ft in (2874 mm) |
| Height To Top Of Cab | 11.17 ft in (3404 mm) |
| Wheelbase | 10.5 ft in (3200 m) |
| Ground Clearance | 1.52 ft in (461 mm) |
| Hinge Pin Max Height | 13.6 ft in (4144 mm) |
| Dump Clearance At Max Lift | 8.91 ft in (2713 mm) |
| Max Lift Height | 12.9 ft in (3929 mm) |
| Fork Tine Length | 5.01 ft in (1525 mm) |
| Reach At Max Height And Dump | 3.71 ft in (1128 mm) |
| Length With Out Forks On Ground | 28.35 ft in (8641 mm) |
Engine
| Number Of Cylinders | 6 |
| Engine Make | 2240 |
| Engine Model | 6081H |
| Gross Power | 180 hp (134 kw) |
| Net Power | 221 hp (165 kw) |
| Power Measured @ | 2200 rpm |
| Max Torque | 755 lb ft (1020 Nm) |
| Torque Measured @ | 1300 rpm |
| Torque Rise | 75 % |
| Displacement | 496 cu in (8.1 L) |
| Aspiration | Turbocharged |
Operational
| Operating Weight | 38876 lb (17631 kg) |
| Fuel Capacity | 100 gal (379 L) |
| Turning Radius | 18.1 ft in (5500 mm) |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 55 amps |
| Rear Axle Oscillation | 26 degrees |
| Static Tipping Load - Bucket | 31210.1 lb (14156.7 kg) |
| Static Tipping Load - Forks | 22782 lb (10334 kg) |
| Tire Size | 23.5-25 |
Transmission
| Transmission Type | Power Shift |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 3 |
| Max Speed Forward | 22 mph (35.4 km/h) |
| Max Speed Reverse | 15.5 mph (24.9 km/h) |
Hydraulic System
| Pump Type | Piston Pump |
| Relief Valve Setting | 3600 psi (24850 kPa) |
| Pump Flow Capacity | 68 gal/min (257.5 L/min) |
| Raise Time | 6.2 sec |
| Dump Time | 1.4 sec |
| Lower Time | 3 sec |
Bucket
| Breakout Force | 28976 lb (128.9 kN) |
| Bucket Capacity - Heaped | 4.3 yd3 (3.3 m3) |
| Bucket Capacity - Struck | 3.8 yd3 (3 m3) |
