John Deere 644J Z-Bar
Browse All John Deere or Wheel Loader Models
Contents:
Bucket
| Dump Clearance At Max Raise | 9.67 ft in (2950 mm) |
| Bucket Capacity - Heaped | 4.25 yd3 (3.2 m3) |
| Bucket Capacity - Struck | 3.7 yd3 (2.8 m3) |
| Bucket Width | 9.5 ft in (2895.6 mm) |
| Breakout Force | 34407 lb (153 kN) |
Dimensions
| Ground Clearance | 1.42 ft in (434 mm) |
| Length With Bucket On Ground | 26.42 ft in (8050 mm) |
| Width Over Tires | 9.43 ft in (2875 mm) |
| Height To Top Of Cab | 11.17 ft in (3400 mm) |
| Wheelbase | 10.5 ft in (3200 mm) |
| Hinge Pin - Max Height | 13.58 ft in (4140 mm) |
| Reach At Max Lift And Dump | 3.67 ft in (1120 mm) |
Engine
| Number Of Cylinders | 6 |
| Engine Make | 2240 |
| Engine Model | 6068H |
| Net Power | 185 hp (138 kw) |
| Power Measured @ | 2200 rpm |
| Max Torque | 749 lb ft (1016 Nm) |
| Displacement | 414 cu in (6.8 L) |
| Torque Measured @ | 1400 rpm |
| Aspiration | Turbocharged charge air cooled |
| Torque Rise | 55 % |
Operational
| Operating Weight | 40150 lb (18212 kg) |
| Fuel Capacity | 93 gal (352 L) |
| Hydraulic System Fluid Capacity | 31 gal (117 L) |
| Engine Oil Fluid Capacity | 6.5 gal (24.5 L) |
| Cooling System Fluid Capacity | 7.8 gal (29.5 L) |
| Transmission Fluid Capacity | 7.1 gal (26.5 L) |
| Front Axle/Diff Fluid Capacity | 5.9 gal (22 L) |
| Rear Axle/Diff Fluid Capacity | 5.9 gal (22 L) |
| Static Tipping Weight | 34379 lb (15594 kg) |
| Turning Radius | 18 ft in (5490 mm) |
| Operating Voltage | 24 V |
| Alternator Supplied Amperage | 80 amps |
| Rear Axle Oscillation | 26 degrees |
| Tire Size | 23.5 R25 |
Transmission
| Transmission Type | Automatic powershift |
| 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 (25 km/h) |
Hydraulic System
| Relief Valve Setting | 3600 psi (24800 kPa) |
| Pump Flow Capacity | 68 gal/min (257 L/min) |
| Raise Time | 6.2 sec |
| Dump Time | 1.4 sec |
| Lower Time | 3 sec |
| Pump Type | Variable axial piston |
