644 X-Tier Wheel Loader
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644 X-Tier Wheel Loader
644, 644 x, Front loader, Front end loader, Front-end loader, End loader, Payloader, Front end loader tractor
644 X-Tier Wheel Loader - Deere
Shift Modes Manual/auto (1st–D or 2nd–D); Quick-Shift button with 2 selectable modes: kick-down or kick-up/down; and 3 adjustable clutch cutoff settings Standard 3-Speed Hybrid-Electric Drive (E-Drive) Maximum Travel Sp…
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WHEEL LOADER 644 X-TIER WHEEL LOADER ON THE CUTTING EDGE. The multipurpose 644 X-Tier Wheel Loader is designed and purpose built to take it on and go beyond. With its combined innovative E-Drive and PowerShiftTM transmission system that delivers strong pushing power and fast ramp-climbing ability, tasks ranging from loading trucks to maintaining stockpiles to heaping hoppers can be accomplished with efficiency and ease. And this impressive iron runs quiet, too. The 644 X tier is packed to the max with the state-of-the-art technology and innovative features that can help take your operation to new heights of productivity and performance. Power without compromise Choose between variable and constant engine speeds in normal and performance modes. Drivetrain and hydraulic functions are powerful, responsive, and quick, to deliver exceptional productivity in the most demanding applications. E-Drive innovation Innovative E-Drive transmission system delivers premium performance and efficiency. System includes an engine-driven generator plus an inverter to control the electric motor that drives a simplified PowerShift transmission. Move more with less Efficiency is outstanding, with up to 18-percent more tons moved per gallon of fuel burned than top competitors.* *As measured in a closed-circuit test conducted in September 2020 against similarly equipped top competitors. All machines were operated at maximum productivity in controlled conditions. 2 | DEERE.COM F E AT U R E S FIND YOUR FIT LEADING EDGE Premium edge with innovative technology EXCEPTIONAL PERFORMANCE Advanced features and performance RUGGED AND RELIABLE Proven capabilities and value Smooth operator Purpose-built PowerShift transmission provides smooth control through four forward speed ranges. Direction changes are accomplished by the electric motor, completely eliminating shifting in some truckloading applications. The bucket list A wide-ranging selection of enhanced production buckets with integrated spill guards, curved side cutters, and impressive rollback maximizes bucket-fill performance and material retention. Choose from hi-vis and JRB-style couplers to maximize fleet versatility and machine utilization. Make a good impression Running wide open at 1,600 rpm, the in-cab noise rating is just 70 dBA. Reduced exterior noise makes the 644 X tier a great choice when working in residential areas. DEERE.COM | 3 Field proven John Deere E-Drive technology in our 644 and 944 Wheel Loaders has collectively logged over two million field hours -- a testament to the durability and performance of our transmission components and systems. The coast is clear Coast-control feature slows the loader down without the operator having to touch a pedal, helping extend service-brake wear life. Time to take sides All daily service points including fuel are conveniently grouped on the left side of the machine at ground level, for easy access. Hinged doors enable wide-open access to the engine, cooling system, and other components. Creature comforts Spacious cab boasts ample legroom and features ergonomically placed controls, foot pedals, and sealedswitch module. Seat-mounted hydraulic controls include two programmable multifunction buttons and intuitive electrohydraulic (EH) controls. Integrated controls With the capacity to control up to six functions on the single hydraulic joystick, cycle times and productivity when using hydraulic attachments are improved. 4 | DEERE.COM P OWERFUL INNOVATIVE 644 X-TIER WHEEL LOADER Remote diagnostics and support To maximize uptime and lower costs, JDLinkTM telematics provides machine location, utilization data, and alerts to help you maximize productivity and efficiency. JDLink also enables John Deere Connected SupportTM. Dealers use Expert Alerts based on data from thousands of connected machines to proactively address conditions that may otherwise likely lead to downtime. Your dealer can also monitor machine health and leverage remote diagnostics and programming capability to further diagnose problems and even update machine software without a time-consuming trip to the jobsite.* *Availability varies by region. Options not available in every country. DEERE.COM | 5 644 X-TIER WHEEL LOADER SPECIFICATIONS Engine Manufacturer and Model Non-Road Emission Standard Cylinders Valves Per Cylinder Displacement Net Peak Power (ISO 9249) Gross Peak Power (ISO 9249) Cooling Fan Drive Electrical Electrical System Batteries (2 � 12 volt) Transmission System Type Motor/Generator Inverter Shift Control Operator Interface Shift Modes Maximum Travel Speeds (with 23.5 R 25 tires) Range 1 Range 2 Range 3 Range 4 Axles/Brakes Final Drives Differentials Rear Axle Oscillation, Stop to Stop (with 23.5 R 25 tires) Brakes (conform to ISO 3450) Service Parking Tires/Wheels (see page 9 for complete tire adjustments) Michelin 23.5 R 25, 1 Star L-3 Serviceability Refill Capacities Fuel Tank (with lockable cap) Diesel Exhaust Fluid (DEF) Cooling System Inverter Hydraulic System/Steering Pump (loader and steering) Maximum Rated Flow at 6895 kPa (1,000 psi) and 1,939 rpm System Relief Pressure (loader and steering) Loader Controls Steering (conforms to ISO 5010) Type Articulation Angle Turning Radius (measured to centerline of outside tire) While general information, pictures, and descriptions are provided, some illustrations and text may include product options and accessories NOT AVAILABLE in all regions, and in some countries products and accessories may require modifications or additions to ensure compliance with the local regulations of those countries. 644 X-TIER Z-BAR / HIGH-LIFT John Deere PowerTechTM PSS 6068 EPA Final Tier 4/EU Stage V 6 4 6.8 L (415 cu. in.) 172 kW (231 hp) at 1,500 rpm 178 kW (238 hp) at 1,500 rpm Net Peak Torque (ISO 9249) Net Torque Rise Fuel System (electronically controlled) Lubrication Aspiration Air Cleaner 1095 Nm (808 lb.-ft.) at 1,500 rpm 36% High-pressure common rail Full-flow spin-on filter and integral cooler Turbocharged, charge air cooled Under-hood, dual-element dry type, restriction indicator in cab monitor for service Hydraulically driven, proportionally controlled, fan aft of coolers 24 volt with 140-amp alternator 950 CCA (each) Countershaft-type PowerShiftTM Brushless A/C Solid-state power Electronically modulated, adaptive, load and speed dependent Steering column or joystick-mounted F-N-R and gear-select lever; Quick-Shift button on hydraulic lever Manual/auto (1st�D or 2nd�D); Quick-Shift button with 2 selectable modes: kick-down or kick-up/down; and 3 adjustable clutch cutoff settings Standard 3-Speed Hybrid-Electric Drive (E-Drive) Forward 7.5 km/h (4.5 mph) 14.0 km/h (8.7 mph) 25.0 km/h (15.5 mph) 40.0 km/h (24.9 mph) Reverse 7.5 km/h (4.5 mph) 14.0 km/h (8.7 mph) 25.0 km/h (15.5 mph) 40.0 km/h (24.9 mph) Heavy-duty inboard-mounted planetary Hydraulic locking front with conventional rear � standard; dual locking front and rear � optional 26 deg. (13 deg. each direction) Hydraulically actuated, inboard sun-shaft mounted, oil cooled, self adjusting, single disc Automatic spring applied, hydraulically released, transmission integrated, oil cooled, multi disc Tread Width 2170 mm (85.4 in.) 350 L (92.6 gal.) 18.5 L (19.5 qt.) 63 L (67 qt.) 5.7 L (6.0 qt.) Width Over Tires 2875 mm (113.2 in.) Refill Capacities (continued) Engine Oil With Vertical Spin-On Filter 27 L (28.5 qt.) Transmission Reservoir With Vertical Filter 32 L (34 qt.) Axle Oil (front and rear, each) 22 L (23 qt.) Hydraulic Reservoir and Filter 103.4 L (27.3 gal.) Variable-displacement, axial-piston pump; closed-center, pressure-compensating system 265 L/m (70 gpm) 25 166 kPa (3,650 psi) 2-function valve; joystick control or fingertip controls; hydraulic-function enable/disable; optional 3rd- and 4th-function valve with auxiliary lever Power, fully hydraulic 80-deg. arc (40 deg. each direction) 5.64 m (18 ft. 6 in.) 6 644 X-TIER WHEEL LOADER SPECIFICATIONS While general information, pictures, and descriptions are provided, some illustrations and text may include product options and accessories NOT AVAILABLE in all regions, and in some countries products and accessories may require modifications or additions to ensure compliance with the local regulations of those countries. Hydraulic System/Steering (continued) 644 X-TIER Z-BAR / HIGH-LIFT Hydraulic Cycle Times Raise Z-Bar High-Lift 6.2 sec. 6.2 sec. M Dump 1.7 sec. 1.7 sec. Lower (power down) 3.8 sec. 4.0 sec. Total Bucket Capacity Range 11.7 sec. 11.9 sec. N Bucket Type Pin-On 3.2�3.6 m3 (4.25�4.75 cu. yd.) G I Coupler 3.1�3.6 m3 (4.0�4.75 cu. yd.) Dimensions and Specifications With Pin-On Bucket With Bolt-On Edge HJ L 644 X-TIER Z-BAR AND HIGH-LIFT LOADERS WITH PIN-ON BUCKET WITH BOLT-ON EDGE Cab A B K D C E F Z-Bar Dimensions With Bucket With Bolt-On Edge (illustration above right) 3.2-m3 (4.25 cu. yd.) general-purpose A Height to Top of Cab 3.45 m (11 ft. 4 in.) B Hood Height 2.51 m (8 ft. 3 in.) C Ground Clearance 386 mm (15.2 in.) D Length From Centerline to Front Axle 1.66 m (5 ft. 5 in.) E Wheelbase 3.31 m (10 ft. 10 in.) F Overall Length, Bucket on Ground 8.26 m (27 ft. 1 in.) G Height to Hinge Pin, Fully Raised 4.09 m (13 ft. 5 in.) H Dump Clearance, 45 deg., Full Height 2.87 m (9 ft. 5 in.) I Reach, 45-deg. Dump, Full Height 1.06 m (3 ft. 6 in.) J Reach, 45-deg. Dump, 2.13-m (7 ft. 0 in.) 1.61 m (5 ft. 3 in.) Clearance K Maximum Digging Depth 125 mm (5 in.) L Maximum Rollback at Ground Level 45 deg. M Maximum Rollback, Boom Fully Raised 59 deg. N Maximum Bucket Dump Angle, Fully Raised 48 deg. Loader Clearance Circle, Bucket Carry 13.0 m (42 ft. 8 in.) Position Specifications With Bucket Capacity, Heaped 3.3 m3 (4.25 cu. yd.) Capacity, Struck 2.7 m3 (3.47 cu. yd.) Bucket Weight With Bolt-On Cutting Edge 1844 kg (4,066 lb.) Bucket Width 3.04 m (10 ft. 0 in.) Breakout Force 15 574 kg (34,334 lb.) Tipping Load, Straight, No Tire Deflection 14 548 kg (32,072 lb.) Tipping Load, Straight, With Tire 13 632 kg (30,053 lb.) Z-Bar 3.4-m3 (4.5 cu. yd.) general-purpose 3.45 m (11 ft. 4 in.) 2.51 m (8 ft. 3 in.) 386 mm (15.2 in.) 1.66 m (5 ft. 5 in.) 3.31 m (10 ft. 10 in.) 8.31 m (27 ft. 3 in.) 4.09 m (13 ft. 5 in.) 2.83 m (9 ft. 4 in.) 1.09 m (3 ft. 7 in.) 1.62 m (5 ft. 4 in.) 129 mm (5 in.) 45 deg. 59 deg. 48 deg. 13.0 m (42 ft. 9 in.) 3.4 m3 (4.50 cu. yd.) 2.8 m3 (3.68 cu. yd.) 1880 kg (4,145 lb.) 3.04 m (10 ft. 0 in.) 15 002 kg (33,074 lb.) 14 436 kg (31,827 lb.) 13 524 kg (29,815 lb.) High-Lift 3.2-m3 (4.25 cu. yd.) general-purpose 3.45 m (11 ft. 4 in.) 2.51 m (8 ft. 3 in.) 386 mm (15.2 in.) 1.66 m (5 ft. 5 in.) 3.31 m (10 ft. 10 in.) 8.72 m (28 ft. 7 in.) 4.50 m (14 ft. 9 in.) 3.28 m (10 ft. 9 in.) 1.17 m (3 ft. 10 in.) 2.02 m (6 ft. 8 in.) 262 mm (10 in.) 45 deg. 60 deg. 45 deg. 13.3 m (43 ft. 9 in.) 3.3 m3 (4.26 cu. yd.) 2.7 m3 (3.48 cu. yd.) 1695 kg (3,737 lb.) 3.04 m (10 ft. 0 in.) 15 568 kg (34,321 lb.) 12 403 kg (27,344 lb.) 11 700 kg (25,794 lb.) Deflection Tipping Load, 40-deg. Full Turn, No Tire 12 667 kg (27,925 lb.) 12 564 kg (27,698 lb.) 10 723 kg (23,639 lb.) Deflection Tipping Load, 40-deg. Full Turn, With 11 541 kg (25,444 lb.) 11 439 kg (25,219 lb.) 9837 kg (21,687 lb.) Tire Deflection Rated Operating Load, 50% Full-Turn 6333 kg (13,963 lb.) 6282 kg (13,849 lb.) 5361 kg (11,820 lb.) Tipping Load No Tire Deflection (conforms to ISO 14397-1)* Rated Operating Load, 50% Full-Turn 5771 kg (12,722 lb.) 5720 kg (12,609 lb.) 4919 kg (10,843 lb.) Tipping Load, With Tire Deflection (conforms to ISO 14397-1)* Operating Weight 18 856 kg (41,571 lb.) 18 892 kg (41,649 lb.) 19 218 kg (42,369 lb.) Loader operating information is based on machine with identified linkage and standard equipment, PowerTech PSS 6068 (EPA Final Tier 4/EU Stage V) engine, ROPS cab, rear cast bumper/counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator. This information is affected by changes in tires, ballast, and different attachments, and assumes no tire deflection per the standard ISO 14397-1 section 5. *Rated operating capacity based on Deere attachments only. 644 X TIER While general information, pictures, and descriptions are provided, some illustrations and text may include productoptionsandaccessoriesNOTAVAILABLEinallregions,andinsomecountriesproductsandaccessories mayrequiremodificationsoradditionstoensurecompliancewiththelocalregulationsofthosecountries. Dimensions and Specifications With Hi-Vis 644 X-TIER Coupler and Hook-On Bucket With Bolt-On Edge Z-BAR / HIGH-LIFT M N G I HJ L 644 X-TIER Z-BAR AND HIGH-LIFT LOADERS WITH QUICKCOUPLER AND HOOK-ON BUCKET WITH BOLT-ON EDGE Cab A B K D C E F Dimensions With Bucket With Bolt-On Edge (illustration above right) A Height to Top of Cab B Hood Height C Ground Clearance D Length From Centerline to Front Axle E Wheelbase F Overall Length, Bucket on Ground G Height to Hinge Pin, Fully Raised H Dump Clearance, 45 deg., Full Height I Reach, 45-deg. Dump, Full Height J Reach, 45-deg. Dump, 2.13-m (7 ft. 0 in.) Clearance K Maximum Digging Depth L Maximum Rollback at Ground Level M Maximum Rollback, Boom Fully Raised N Maximum Bucket Dump Angle, Fully Raised Loader Clearance Circle, Bucket Carry Position Specifications With Bucket Capacity, Heaped Capacity, Struck Bucket Weight With Bolt-On Cutting Edge Bucket Width Breakout Force TippingLoad,Straight,NoTireDeflection TippingLoad,Straight,WithTireDeflection TippingLoad,40-deg.FullTurn,NoTireDeflection TippingLoad,40-deg.FullTurn,WithTireDeflection Rated Operating Load, 50% Full-Turn Tipping Load, Z-Bar 3.1-m3 (4.0 cu. yd.) general-purpose 3.45 m (11 ft. 4 in.) 2.51 m (8 ft. 3 in.) 386 mm (15.2 in.) 1.66 m (5 ft. 5 in.) 3.31 m (10 ft. 10 in.) 8.31 m (27 ft. 3 in.) 4.09 m (13 ft. 5 in.) 2.84 m (9 ft. 4 in.) 1.10 m (3 ft. 7 in.) 1.63 m (5 ft. 4 in.) 125 mm (5 in.) 45 deg. 59 deg. 48 deg. 13.0 m (42 ft. 9 in.) 3.30 m3 (4.25 cu. yd.) 2.70 m3 (3.47 cu. yd.) 1844 kg (4,066 lb.) 3.04 m (10 ft. 0 in.) 14 907 kg (32,865 lb.) 13 801 kg (30,425 lb.) 12 924 kg (28,493 lb.) 11 967 kg (26,383 lb.) 10 884 kg (23,995 lb.) 5984 kg (13,192 lb.) Z-Bar 3.2-m3 (4.25 cu. yd.) general-purpose 3.45 m (11 ft. 4 in.) 2.51 m (8 ft. 3 in.) 386 mm (15.2 in.) 1.66 m (5 ft. 5 in.) 3.31 m (10 ft. 10 in.) 8.35 m (27 ft. 5 in.) 4.09 m (13 ft. 5 in.) 2.81 m (9 ft. 2 in.) 1.13 m (3 ft. 8 in.) 1.64 m (5 ft. 5 in.) 129 mm (5 in.) 45 deg. 59 deg. 48 deg. 13.0 m (42 ft. 9 in.) 3.40 m3 (4.50 cu. yd.) 2.80 m3 (3.68 cu. yd.) 1880 kg (4,145 lb.) 3.04 m (10 ft. 0 in.) 14 419 kg (31,789 lb.) 13 697 kg (30,196 lb.) 12 819 kg (28,261 lb.) 11 870 kg (26,168 lb.) 10 782 kg (23,770 lb.) 5935 kg (13,084 lb.) High-Lift 3.1-m3 (4.0 cu. yd.) general-purpose 3.45 m (11 ft. 4 in.) 2.51 m (8 ft. 3 in.) 386 mm (15.2 in.) 1.66 m (5 ft. 5 in.) 3.31 m (10 ft. 10 in.) 8.77 m (28 ft. 9 in.) 4.50 m (14 ft. 9 in.) 3.25 m (10 ft. 8 in.) 1.21 m (4 ft. 0 in.) 2.05 m (6 ft. 9 in.) 262 mm (10 in.) 45 deg. 60 deg. 45 deg. 13.5 m (44 ft. 3 in.) 3.07 m3 (4.02 cu. yd.) 2.51 m3 (3.28 cu. yd.) 1639 kg (3,613 lb.) 3.04 m (10 ft. 0 in.) 14 901 kg (32,852 lb.) 11 747 kg (25,898 lb.) 11 067 kg (24,399 lb.) 10 104 kg (22,275 lb.) 9246 kg (20,384 lb.) 5052 kg (11,138 lb.) High-Lift 3.2-m3 (4.25 cu. yd.) general-purpose 3.45 m (11 ft. 4 in.) 2.51 m (8 ft. 3 in.) 386 mm (15.2 in.) 1.66 m (5 ft. 5 in.) 3.31 m (10 ft. 10 in.) 8.82 m (28 ft. 11 in.) 4.50 m (14 ft. 9 in.) 3.22 m (10 ft. 7 in.) 1.24 m (4 ft. 1 in.) 2.06 m (6 ft. 9 in.) 266 mm (10 in.) 45 deg. 60 deg. 45 deg. 13.5 m (44 ft. 4 in.) 3.26 m3 (4.26 cu. yd.) 2.66 m3 (3.48 cu. yd.) 1695 kg (3,737 lb.) 3.04 m (10 ft. 0 in.) 14 414 kg (31,778 lb.) 11 656 kg (25,698 lb.) 10 977 kg (24,200 lb.) 10 018 kg (22,085 lb.) 9156 kg (20,186 lb.) 5009 kg (11,042 lb.) NoTireDeflection(conformstoISO14397-1)* Rated Operating Load, 50% Full-Turn Tipping Load, 5442 kg (11,998 lb.) 5391 kg (11,885 lb.) 4623 kg (10,192 lb.) 4578 kg (10,093 lb.) WithTireDeflection(conformstoISO14397-1)* Operating Weight 19 281 kg (42,507 lb.) 19 338 kg (42,632 lb.) 19 643 kg (43,305 lb.) 19 700 kg (43,430 lb.) Loader operating information is based on machine with identified linkage and standard equipment, PowerTech PSS 6068 (EPA Final Tier 4/EU Stage V) engine, ROPS cab, rear cast bumper counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator. This information is affected by changes in tires, ballast, and different attachments, and assumes no tire deflection per the standard ISO 14397-1 section 5. *Rated operating capacity based on Deere attachments only. Dimensions and Specifications With Hi-Vis Coupler and Construction Forks Z-Bar Z-Bar High-Lift High-Lift Dimensions With Forks (illustration at top of next page) 1.52-m (60 in.) tine length 1.83-m (72 in.) tine length 1.52-m (60 in.) tine length 1.83-m (72 in.) tine length A Height to Top of Cab 3.45 m (11 ft. 4 in.) 3.45 m (11 ft. 4 in.) 3.45 m (11 ft. 4 in.) 3.45 m (11 ft. 4 in.) B Hood Height 2.51 m (8 ft. 3 in.) 2.51 m (8 ft. 3 in.) 2.51 m (8 ft. 3 in.) 2.51 m (8 ft. 3 in.) C Ground Clearance 386 mm (15.2 in.) 386 mm (15.2 in.) 386 mm (15.2 in.) 386 mm (15.2 in.) D Length From Centerline to Front Axle 1.66 m (5 ft. 5 in.) 1.66 m (5 ft. 5 in.) 1.66 m (5 ft. 5 in.) 1.66 m (5 ft. 5 in.) E Wheelbase 3.31 m (10 ft. 10 in.) 3.31 m (10 ft. 10 in.) 3.31 m (10 ft. 10 in.) 3.31 m (10 ft. 10 in.) F Overall Length, Forks on Ground 9.01 m (29 ft. 7 in.) 9.32 m (30 ft. 7 in.) 9.41 m (30 ft. 10 in.) 9.71 m (31 ft. 10 in.) G Height to Hinge Pin, Fully Raised 4.09 m (13 ft. 5 in.) 4.09 m (13 ft. 5 in.) 4.50 m (14 ft. 9 in.) 4.50 m (14 ft. 9 in.) H Reach, Fully Raised 820 mm (32 in.) 820 mm (32 in.) 930 mm (3 ft. 1 in.) 930 mm (3 ft. 1 in.) I Fork Height, Fully Raised 3.78 m (12 ft. 5 in.) 3.78 m (12 ft. 5 in.) 4.19 m (13 ft. 9 in.) 4.19 m (13 ft. 9 in.) J Maximum Reach, Fork Level 1.70 m (5 ft. 7 in.) 1.70 m (5 ft. 7 in.) 2.05 m (6 ft. 9 in.) 2.05 m (6 ft. 9 in.) K Fork Height, Maximum Reach 1.70 m (5 ft. 7 in.) 1.70 m (5 ft. 7 in.) 1.74 m (5 ft. 9 in.) 1.74 m (5 ft. 9 in.) L Reach, Ground Level 1.16 m (3 ft. 10 in.) 1.16 m (3 ft. 10 in.) 1.56 m (5 ft. 1 in.) 1.56 m (5 ft. 1 in.) M Depth Below Ground 90 mm (3 in.) 90 mm (3 in.) 220 mm (9 in.) 220 mm (9 in.) N Tine Length 1.52 m (60 in.) 1.83 m (72 in.) 1.52 m (60 in.) 1.83 m (72 in.) O Load Position, 50% Tine Length 760 mm (30 in.) 910 mm (36 in.) 760 mm (30 in.) 910 mm (36 in.) 8 Whilegeneralinformation,pictures,anddescriptionsareprovided,someillustrationsandtextmayinclude productoptionsandaccessoriesNOTAVAILABLEinallregions,andinsomecountriesproductsandaccessories mayrequiremodificationsoradditionstoensurecompliancewiththelocalregulationsofthosecountries. H Dimensions and Specifications With Hi-Vis 644 X-TIER Coupler and Construction Forks (continued) Z-BAR / HIGH-LIFT G I K J O L 644 X TIER 644 X-TIER Z-BAR LOADERS WITH QUICK-COUPLER AND HOOK-ON CONSTRUCTION FORKS Cab A B N M D C E F Specifications With Forks (illustration above right) TippingLoad,Straight,NoTireDeflection TippingLoad,Straight,WithTireDeflection TippingLoad,40-deg.FullTurn,NoTireDeflection Tipping Load, 40-deg. Full Turn, With Tire Z-Bar 9646 kg (21,267 lb.) 9366 kg (20,648 lb.) 8397 kg (18,513 lb.) 8028 kg (17,699 lb.) Z-Bar 9146 kg (20,164 lb.) 8886 kg (19,590 lb.) 7953 kg (17,533 lb.) 7608 kg (16,773 lb.) High-Lift 8630 kg (19,026 lb.) 8382 kg (18,479 lb.) 7461 kg (16,448 lb.) 7125 kg (15,708 lb.) High-Lift 8213 kg (18,106 lb.) 7983 kg (17,599 lb.) 7090 kg (15,632 lb.) 6777 kg (14,941 lb.) Deflection Rated Operating Load, 50% Full-Turn Tipping 4014 kg (8,849 lb.) 3804 kg (8,386 lb.) 3563 kg (7,854 lb.) 3389 kg (7,470 lb.) Load,WithTireDeflection(conformstoISO 14397-1 and SAE J1197)* Rated Operating Load, Rough Terrain, 60% 4817 kg (10,619 lb.) 4565 kg (10,064 lb.) 4275 kg (9,425 lb.) 4066 kg (8,964 lb.) Full-TurnTippingLoad,WithTireDeflection (conformstoEN474-3)* RatedOperatingLoad,FirmandLevelGround, 6422 kg (14,159 lb.) 6086 kg (13,418 lb.) 5700 kg (12,566 lb.) 5422 kg (11,953 lb.) 80%Full-TurnTippingLoad,WithTireDeflection (conformstoEN474-3)* Operating Weight 18 750 kg (41,337 lb.) 18 810 kg (41,470 lb.) 19 112 kg (42,134 lb.) 19 172 kg (42,267 lb.) Loader operating information is based on machine with identified linkage and standard equipment, PowerTech PSS 6068 (EPA Final Tier 4/EU Stage V) engine, ROPS cab, rear cast bumper/counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator. This information is affected by changes in tires, ballast, and different attachments, and assumes no tire deflection per the standard ISO 14397-1 section 5. *Rated operating capacity based on Deere attachments only. Adjustments to Operating Weights and Tipping Loads With Buckets Adjustments to operating weights, tipping loads, and tires are based on Z-Bar machine with pin-on 3.2-m3 (4.25 cu. yd.) general-purpose bucket with bolt-on cutting edge, ROPS cab, rear cast bumper/counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator* Add(+)ordeduct(�)kg(lb.)asindicated Tipping Load, Tipping Load, forloaderswith3-piecerims Michelin23.5R25,1StarL-3 Bridgestone23.5R25,1StarL-3 Titan 23.5-25, 20 PR L-3 Titan 725/70-25 16-Ply L-4T (Logger Style)�� Operating Weight 0 kg (0 lb.) +101 kg (+223 lb.) �271kg(�597lb.) +359 kg (+792 lb.) Michelin750/65R25,1StarL-3T�� +715 kg (+1,577 lb.) *May change based on vehicle configuration, weight, or tire-pressure adjustments. Equipped with 5-piece heavy-duty rims. �CaCl2 not recommended. �Requires 9-deg. rear axle stops. Bucket Selection Guides Straight 0 kg (0 lb.) +771 kg (+170 lb.) 40-deg. Full Turn 0 kg (0 lb.) +68 kg (+150 lb.) Tread Width 0mm(0in.) �3mm(�0.1in.) �207kg(�456lb.) �183kg(�402lb.) �3mm(�0.1in.) +285 kg (+629 lb.) +252 kg (+555 lb.) +34mm(+1.4in.) +557 kg (+1,228 lb.) +492 kg (+1,084 lb.) +34mm(+1.4in.) Width Over Tires 0mm(0in.) +15mm(+0.6in.) +33mm(+1.3in.) +119mm(+4.7in.) +140mm(+5.5in.) Material Density (kg/m3) 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 Vertical Height 0mm(0in.) +39mm(+1.5in.) +29mm(+1.1in.) +78mm(+3.1in.) +42mm(+1.7in.) 2000 2100 2200 2300 3.90 m3 (5.10 cu. yd.) 3.09 m3 (4.04 cu. yd.) 3.2 m3 Pin-On 4.13 m3 (5.40 cu. yd.) 3.27 m3 (4.28 cu. yd.) (4.25 cu. yd.) (4.0 cu. yd.) (4.25 cu. yd.) (4.25 cu. yd.) (4.0 cu. yd.) (4.5 cu. yd.) (4.25 cu. yd.) 3.44 m3 Z-Bar Linkage LOOSE MATERIALS Chips, pulpwood Cinders (coal, ashes, clinkers) Clay and gravel, dry Clay, compact, solid Clay, dry in lump loose Clay, excavated in water Coal, anthracite, broken, loose Coal, bituminous, moderately wet Earth, common loam, dry Earth, mud, packed Granite, broken Gypsum kg/m3 lb./cu. yd. LOOSE MATERIALS kg/m3 lb./cu. yd. 288 673 1602 1746 1009 1282 865 801 1218 1843 1538 2275 486 1,134 2,700 2,943 1,701 2,160 1,458 1,350 2,052 3,105 2,592 3,834 Limestone, coarse, sized 1570 Limestone, mixed sizes 1682 Limestone, pulverized or crushed 1362 Sand, damp 2083 Sand, dry 1762 Sand, voids, full of water 2083 Sandstone, quarried 1314 Shale, broken crushed 1362 Slag, furnace granulated 1955 Stone or gravel, 37.5 to 87.5-mm (1.5 to 3.5") size 1442 Stone or gravel, 18.75-mm (0.75") size 1602 2,646 2,835 2,295 3,510 2,970 3,510 2,214 2,295 3,294 2,430 2,700 Bucket Fill Factors 115% 110% 105% 100% 95% High-Lift Linkage Quick-Coupler Quick-Coupler 3.1 m3 3.2 m3 3.2 m3 3.1 m3 3.90 m3 (5.10 cu. yd.) 3.69 m3 (4.82 cu. yd.) 3.91 m3 (5.11 cu. yd.) 3.69 m3 (4.82 cu. yd.) 3.91 m3 (5.11 cu. yd.) 3.09 m3 (4.04 cu. yd.) 2.92 m3 (3.82 cu. yd.) 3.09 m3 (4.05 cu. yd.) 2.92 m3 (3.82 cu. yd.) 3.09 m3 (4.05 cu. yd.) 3.2 m3 1,180 1,348 1,517 1,686 1,854 2,023 2,191 2,360 2,528 2,697 2,865 3,034 3,203 3,371 3,540 3,708 3,876 Material Density (lb./cu. yd.) Additional equipment Key: l Standard s Optional or special See your John Deere dealer for further information. 644 X Engine l Wet-sleeve cylinder liners l Programmable auto-idle and auto shutdown l Selected idle adjustment from 900�1,250 rpm l Starter excessive-cranking protection l Automatic engine cool-down timer l Automatic derating for exceeded system temperatures l Serpentine drive belt for automatic tensioner l Electrical fuel-priming pump l Dual-stage fuel filter and water separator l 500-hour vertical spin-on oil filter s Engine-compartment light s Chrome exhaust stack l Automatic glow plugs for cold start s Engine-block heater (recommended for cold starts below �23 deg. C [�10 deg. F]) s Centrifugal engine air pre-cleaner s Throttle lock Powertrain l Clutch cutoff with 4 operator settings: Automatic, level ground, small slope, or steep slope l Programmable maximum high gear l Clutch calibration engaged from monitor l 2,000-hour vertical spin-on transmission filter l Transmission fill tube and sight gauge l Transmission diagnostic ports l Hybrid-electric (E-Drive) transmission system l Front locking differential s Rear locking differential l Brake retractors and adjusters s Automatic differential lock l Axle oil temperature sensing Quad-CoolTM Cooling System l Heavy-duty, trash-resistant radiator and high-ambient cooling package l 2-side access to all coolers l Isolated from engine compartment l Engine radiator l Engine oil cooler l Hydraulic oil cooler (oil to air) l Transmission oil cooler (oil to air) l Charge air cooler (air to air) l Fuel cooler l Coolant recovery tank l Antifreeze, �37 deg. C (�34 deg. F) l Cool-on-demand, hydraulically driven, swing-out fan l Enclosed fan safety guard s Automatic reversing fan drive l Axle and service-brake coolers 644 X Hydraulics l Electrohydraulic (EH) controls with soft stops and adjustable settings l In-cab adjustable automatic return-to-dig bucket positioner l In-cab adjustable automatic boom-height kickout/return to carry l Reservoir with sight gauge and fill strainer l Hydraulic diagnostic ports l 4,000-hour in-tank filter l 2 function -- joystick with F-N-R s 2 function -- 2-lever fingertip controls and steering column F-N-R s 3 function -- joystick with F-N-R and integrated 3rd-function roller s 3 function -- 3-lever fingertip controls and steering column F-N-R s 4 function -- joystick with F-N-R and integrated 3rd/4th-function rollers l Programmable multifunction buttons (2) l Adjustable and continuous hydraulic-flow settings l Programmable attachment settings s Ride control, automatic with monitor-adjustable speed settings s Hydraulic control system for quick-coupler locking pins s HydrauTM XR cold-temperature hydraulic fluid recommended below �25 deg. C (�13 deg. F) Steering Systems l Conventional steering wheel with spinner knob s Joystick steering (including conventional steering column) with gearshift, F-N-R, and horn s Secondary steering Electrical l Solid-state electrical power-distribution system l Lockable master electrical-disconnect switch l Battery-terminal safety covers l By-pass start safety cover at starter l Remote jump-start access in battery box l Pre-wired for beacon/strobe light l Lights: Halogen driving lights with guards (2) / Front (4), rear cab (2), and rear grille (2) work lights / LED front turn signals and flashers / LED stopand taillights s Premium LED light package (all exterior lights are heavy-duty LED) l Programmable courtesy lights l Horn, electric l Reverse warning alarm l Multifunction/multi-language 178-mm (7 in.) LCD color monitor includes: Digital instruments -- Analog display (hydraulic oil temperature, engine coolant temperature, transmission oil temperature, and engine oil pressure) / Digital display (engine rpm, transmission gear/direction indicator, hour meter, fuel level, diesel exhaust fluid (DEF) level, speedometer, odometer, and average fuel consumption) s Multifunction/multi-language 127-mm (5 in.) LCD color monitor includes: Digital instruments -- Analog display (hydraulic oil temperature, engine coolant temperature, transmission oil temperature, and engine oil pressure) / Digital display (engine rpm, transmission gear/direction indicator, hour meter, fuel level, DEF level, speedometer, odometer, and average fuel consumption) While general information, pictures, and descriptions are provided, some illustrations and text may include product options and accessories NOT AVAILABLE in all regions, and in some countries products and accessories may require modifications or additions to ensure compliance with the local regulations of those countries. Net engine power is with standard equipment including air cleaner, exhaust system, alternator, and cooling fan at test conditions per ISO 9249. No derating is required up to 3050-m (10,000 ft.) altitude. Specifications and design subject to change without notice. Specifications with the exception of bucket capacity are in accordance with all applicable ISO standards. Except where otherwise noted, these specifications are based on units with applicable linkage and standard equipment, ROPS cab, rear cast bumper/counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator. 10 Additional equipment (cont.) Key: l Standard s Optional or special See your John Deere dealer for further information. 644 X Electrical (continued) l Integrated cycle counter with 5 categories l Indicator lights: Standard and selected options / Amber caution and red stop l Operator-warning messages l Built-in diagnostics: Diagnostic-code details / Sensor values / Calibrations / Individual circuit tester s Electrical corrosion-prevention package l Standard AM/FM/Weather-Band (WB) radio with remote auxiliary port s Premium AM/FM/WB radio with Bluetooth�, remote auxiliary port, and remote USB port (premium cab only) l 24- to 12-volt, 8-amp converter and cab power ports (3) s 24- to 12-volt, 15- or 30-amp converter and cab power ports (3) Operator's Station l Standard cab with air conditioning/heater (ROPS/FOPS Level 1, isolation mounted) s Premium cab with air conditioning/heater (ROPS/FOPS Level 1, isolation mounted) s Automatic temperature control (premium cab only) l Rear window defrost vent l Keyless start with multiple security modes l Sealed-switch module with function indicators l Seat with backrest extension, deep foam, fabric cover, and adjustable air suspension s Premium seat with high-wide back- and headrest extension, heated and ventilated, leather/fabric cover, and adjustable heavy-duty air suspension l Hydraulic controls integrated to seat l High-visibility, bright-orange seat belt, 76 mm (3 in.), with retractor s Seat-belt minder monitoring with JDLinkTM and seat-belt indicator beacon l Cup holder and cup/Thermos� holder with retaining strap l Lunch-box/cooler holder with tie-down brackets l Coat hook l LED dome and reading light l Rubber floor mat l Dual-tilt steering column l Operator's manual storage compartment l Outside (2) and inside (1) rearview mirrors s Heated outside mirrors with convex lens s In-cab adjustable heated outside mirrors with convex lens (premium cab only) l Left-side operator-station access l Slip-resistant steps and ergonomic handholds l Pull-down front sun visor l Front and rear intermittent windshield wipers and washers s Powered cab air pre-cleaner s Beacon bracket only s Beacon bracket with strobe beacon l Rearview camera s Rearview camera with radar object-detection system 644 X Operator's Station (continued) s Dedicated 178-mm (7 in.) rear camera display l Payload scale ready s Fire extinguisher Loader Linkage l Z-Bar loader linkage (parallel lift) s High-Lift Z-Bar loader linkage (parallel lift) Buckets and Attachments s Full line of Deere pin-on buckets, coupler buckets, and forks s John Deere hydraulic coupler that accepts JRB-pattern attachments s Hi-Vis hydraulic coupler that accepts Euro-pattern attachments (ISO) s Full line of Deere hook-on buckets and forks Overall Vehicle l JDLink wireless communication system (available in specific countries; see your dealer for details) l NeverGreaseTM rear-axle oscillation l Front and rear tie-downs l Rear cast bumper/counterweight with rear hitch and locking pin l Articulation locking bar l Loader boom service locking bar l 40-deg. steering articulation to each side with rubber-cushion stops on frame l Vandal protection with lockable engine enclosures, right counterweight storage, and filler access for radiator/fuel/DEF/hydraulic/transmission l Left-side service steps and handholds l Storage compartment l Fuel-tank fill strainer l Heavy-duty fuel-tank guard l Ground-level fuel and DEF fill l Same-side ground-level daily servicing l 23.5R25 tires on 3-piece rims s 23.5R25 tires on 5-piece rims s Tire-pressure monitoring system s Waste handler (Z-Bar and High-Lift) l Environmental drains and sample ports for engine, transmission, hydraulic oils, and engine coolant s Quick fluid service (engine, transmission, hydraulic oils, and engine coolant) s Fast-fuel system l Fenders, front narrow s Fenders, front full width s Fenders, front and rear full width s Fenders, front and rear full width with mud flaps s Less wheels and tires with axle stops s Rims less tires s Transmission side-frame and bottom guards s Special guarding for waste applications s Lift eyes s License-plate bracket and light While general information, pictures, and descriptions are provided, some illustrations and text may include product options and accessories NOT AVAILABLE in all regions, and in some countries products and accessories may require modifications or additions to ensure compliance with the local regulations of those countries. Net engine power is with standard equipment including air cleaner, exhaust system, alternator, and cooling fan at test conditions per ISO 9249. No derating is required up to 3050-m (10,000 ft.) altitude. Specifications and design subject to change without notice. Specifications with the exception of bucket capacity are in accordance with all applicable ISO standards. Except where otherwise noted, these specifications are based on units with applicable linkage and standard equipment, ROPS cab, rear cast bumper/counterweight, transmission side-frame guards, bottom guards, standard tires, full fuel tank, and 79-kg (175 lb.) operator. MF644XAEN Litho in U.S.A. (21-01) JohnDeere.com