John Deere 644 P-Tier Mid-Size Wheel Loader
Make | John Deere |
Model | 644 P-Tier |
Type | Mid-Size Wheel Loaders |
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Description
- Net Power: 186 kW (249 hp) at 1,800 rpm
- Operating Weight: 18 709–18 744 kg (41,246–41,324 lb.)
- Bucket Capacity: 3.1–3.6 m3 (4.0–4.75 cu. yd.)
Models
Ground-Level Service
- All daily service points including fuel refill are conveniently grouped at ground level on the left side of the machine for easy access.
Engine
- 6.8L (415 cu. in.) EPA Final Tier 4/EU Stage V John Deere PowerTech™ PSS engine.
EH Controls
-
Easily control up to six functions without removing your hand from the ergonomically designed joystick. Two industry-exclusive multifunction buttons can each be programmed to handle any of 10 functions selected through the monitor including bucket vibrate and electrohydraulic (EH) Precision mode.
Roomy Cab
- Operator station features three more inches of legroom, an improved HVAC system, additional storage, and a more adjustable seat than previous models.
- Joystick controls, foot pedals, and sealed-switch module are all ergonomically placed for optimal comfort and convenience.
Buckets & Linkage
- Featuring bucket and linkage designs that improve load leveling, material retention, and visibility, these loaders yield more productivity and performance than previous models.
- A wide selection of enhanced production buckets with integrated spill guards, curved side cutters, and impressive rollback delivers elevated bucket-fill performance and material retention compared to earlier offerings.
Specifications
- CAPACITIES - Alternator Output, Amp: 100
- CAPACITIES - Axle - Front, ltr (gallons (US)): 22 (5.75)
- CAPACITIES - Axle - Rear, ltr (gallons (US)): 22 (5.75)
- CAPACITIES - Breakout - Bucket , kgf (lbf): 15574 (34334)
- CAPACITIES - Fuel Tank, ltr (gallons (US)): 350 (92.6)
- CAPACITIES - Heaped Capacity, m³ (yd³): 3.2 (4.25)
- CAPACITIES - Hydraulic Tank, ltr (gallons (US)): 105.2 (27.8)
- CAPACITIES - Largest bucket capacity, m³ (yd³): 3.4 (4.5)
- CAPACITIES - Pump Flow - 1, lt/min (gallons (US) / min): 310 (82)
- CAPACITIES - Pump Type: Piston
- CAPACITIES - Ride Control System: Optional
- CAPACITIES - Smallest bucket capacity, m³ (yd³): 3.2 (4.25)
- CAPACITIES - System Pressure, bar (PSI): 251.66 (3650)
- CAPACITIES - System Voltage, V: 24
- CAPACITIES - Transmission, ltr (gallons (US)): 23 (6.075)
- DIMENSIONS - Ground clearance, mm (inches): 386 (15.2)
- DIMENSIONS - Height - Over Cab, mm (ft/in): 3450 (11 ft 4 in)
- DIMENSIONS - Height - Pivot Pin, mm (ft/in): 4090 (13 ft 5 in)
- DIMENSIONS - Length - Including Bucket, mm (ft/in): 8330 (27 ft 4 in)
- DIMENSIONS - Reach - At 2130mm 45° Dump, mm (ft/in): 1610 (5 ft 3 in)
- DIMENSIONS - Turning Circle - Maximum, mm (ft/in): 13000 (42 ft 9 in)
- DIMENSIONS - Wheelbase, mm (ft/in): 3310 (10 ft 10 in)
- DIMENSIONS - Width Over tires - Std, mm (ft/in): 2875 (9 ft 5 in)
- DRIVELINE - Displacement, ltr (Inches³): 6.8 (415)
- DRIVELINE - Emission Rating: Tier 4 / Stage V
- DRIVELINE - Engine Manufacturer : John Deere
- DRIVELINE - Engine Model: PowerTech PSS 6068
- DRIVELINE - Engine Output - Net, kW (hp): 186 (249)
- DRIVELINE - Front Differential Type: Locking
- DRIVELINE - Parking Brake - Type: Wet Multi Disc
- DRIVELINE - Rated Speed, rpm: 1800
- DRIVELINE - Rear Differential Type: Open
- DRIVELINE - Service Brake - Actuation: Hydraulic
- DRIVELINE - Service Brake - Location: All Wheels
- DRIVELINE - Service Brake - Type: Wet Disc
- DRIVELINE - Tire size - Standard: 23.5 R25
- DRIVELINE - Torque Rise, %: 58
- DRIVELINE - Torque, Nm (lbf / ft): 1100 (811)
- DRIVELINE - Transmission Type: Powershift
- WEIGHTS - Operating Weight, kg (lbs): 18709 (41246)
Features
- Operating Weight: 18 709-18 744 kg (41,246-41,324 lb.)
- Bucket Capacity: 3.1-3.6 cu. m. (4.0-4.75 cu. yd.)
- Engine Net Power: 186 kW (249 hp)
Copy Set
Ground-Level Service
- All daily service points including fuel refill are conveniently grouped at ground level on the left side of the machine for easy access.
Engine
- 6.8L (415 cu. in.) EPA Final Tier 4/EU Stage V John Deere PowerTech™ PSS engine.
EH Controls
-
Easily control up to six functions without removing your hand from the ergonomically designed joystick. Two industry-exclusive multifunction buttons can each be programmed to handle any of 10 functions selected through the monitor including bucket vibrate and electrohydraulic (EH) Precision mode.
Roomy Cab
- Operator station features three more inches of legroom, an improved HVAC system, additional storage, and a more adjustable seat than previous models.
- Joystick controls, foot pedals, and sealed-switch module are all ergonomically placed for optimal comfort and convenience.
Buckets & Linkage
- Featuring bucket and linkage designs that improve load leveling, material retention, and visibility, these loaders yield more productivity and performance than previous models.
- A wide selection of enhanced production buckets with integrated spill guards, curved side cutters, and impressive rollback delivers elevated bucket-fill performance and material retention compared to earlier offerings.