more hurry up less wait wheeled feller bunchers 643j 843j optional light package for 24-hour operation improved tilt-back geometry with the fd22b and new link gives you better stability and load transfer capabilities especially on sloped ground pages 45
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wheeled feller bunchers 643j 843j productivity begins at the engine both j-series models feature the more powerful emission-compliant 6068h engine that greatly improves the machine s performance the new 6068h diesel engine gives the 643j a boost up to 174 rated horsepower and 225 rated horsepower in the 843j that means more power for improved multi-functioning capabilities and faster cycle times so you can make your next cut much quicker the new managed horsepower system allocates power to the hydraulic functions and disc saw felling head attachment to balance demand and keep them running at peak performance at the same time when you work on sloped ground or with big timber the increased tilt-back angle of the fd22b saw head will give you better load transfer capabilities and stability you ll work more confidently with the best-in-class cab which provides excellent visibility upward through the larger skylight and forward through the forward-sloping windshield this design also keeps
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the new optional lighting package enables you to work longer shifts for increased productivity the 643j has an increased wheelbase of 110 inches for better stability on sloped ground and a tighter turning radius for better maneuverability in first thinnings the comfortable spacious cab john deere is known for comes with either wheel steering or lever steering controls the cab is well appointed with an adjustable suspension seat am/fm/cd stereo and high-efficiency climate controls to make the operator as productive as possible an optional four-point seatbelt package is available to help stabilize the operator working in rough terrain.
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wheeled feller bunchers 643j 843j work cleaner work longer all the new improvements to the j-series feller bunchers keep debris buildup and contamination to a minimum so you can stay in the woods the j-series features best-in-class serviceability access with a tilt cab and full-service access panels the air cleaner assembly is angled for easy replacement pages 89
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· glow plugs enable cold weather starting even when the temperature drops below freezing · separate reservoirs for the differential and hydraulic circuits allow you to use the appropriate oil for each providing optimum performance · new weldment design around the lift arm cylinders protects hoses from debris buildup and reduces downtime the heavy-duty rear grill has been designed to filter out fine particles before they get to the coolers and cause big problems the swing-out design makes for easy access keeping harmful debris out of your feller buncher s vital components is crucial to your uptime the new hydraulically reversing cooling fan automatically blows debris off the grill screen for better airflow into the engine allowing it to run much cooler and the sucker fan has been designed to draw air through the rear and out the sides to significantly reduce buildup under the cab and around the engine manifold other new anti-contamination improvements to the j-series include a new hand
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wheeled feller bunchers 643j 843j new head has features to benefit your bottom line introducing the new fd22b disc saw felling head the increased horsepower from the new engine gives you faster saw recovery speeds as well as new design updates that improve accumulation and more effective load handling the offset horn design and gathering arm profile lines up with the butt plate keeping stems aligned for larger bunches and better control wider spacing between the gathering and accumulation arms enables better stem control accumulator arms have been rotated to pull stems off to the side maximizing accumulation pages offset butt plate and pocket increase accumulation area capacity by up to 20 the patent-pending three-piece saw housing is bolted not welded for easy replacement available in either hardened steel or technodur® the wear plate helps extend the life of the saw housing 1011
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wheeled feller bunchers 643j 843j at the end of the day it s all about saving money extended service intervals smart design and longer wearing components keep your daily operating costs under control rest assured that your purpose-built john deere forestry equipment is supported by the most extensive dealer network in the industry and unsurpassed parts availability that s our promise of course the 643j s and 843j s load-sensing hydraulics that run all functions simultaneously improve productivity and easy service access to maintenance points on both machines makes service a quicker and easier process to get you back up and running sooner but there s so much more the new 6068h diesel engine meets all standards for reduced emissions the service interval between oil changes has been extended from 250 hours to every 500 hours less oil changes mean less money on oil and less downtime changing the oil then there s the new fuel filtration system that increases the life of the fuel filter and
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technical data 643j 843j wheeled feller bunchers operator s station air conditioner r134a refrigerant am-fm stereo radio and cd player with two 2 remote-mounted speakers cab tilt with onboard hydraulics cab with integral forestry guarding fops ops and rops protective structure coat hook cup holder defroster fan right front of cab fire extinguishers dry chemical and pressurized water floor mat full-function monitor instrumentation with audible warning for engine air intake temperature engine coolant temperature engine oil pressure monitor indicator lights for engine air filter restriction low alternator voltage park brake transmission hydraulic oil filter restriction hydraulic low level indicator diff lock engaged saw engaged engine derate stop indicators glow plug start light gauges illuminated engine coolant temperature hydrostatic transmission oil tank temperature fuel gauge engine monitor hand throttle potentionmeter electric headliner heater 40,000 btu horn hourmeter i
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technical data 643j 843j wheeled feller bunchers engine 643j 843j type john deere 6068h with altitude-compensating turbocharger john deere 6068h with altitude-compensating turbocharger horsepower rated 2,200 rpm 174 130 kw 225 168 kw horsepower maximum 2,000 rpm 201 150 kw 235 175 kw wheeled feller bunchers 643j 843j cylinders 6 6 displacement 414 cu-in 6,8 l 414 cu-in 6,8 l maximum net torque 1,400 rpm 634 lbf 860 nm 754 lbf 1023 nm fuel filters two with water separation two with water separation air cleaner dual stage with safety element and dust unloader valve dual stage with safety element and dust unloader valve cooling system heavy-duty radiator with coolant recovery reservoir heavy-duty radiator with coolant recovery reservoir and side-by-side charged air cooler and side-by-side charged air cooler cooling fan first air sucker hydraulic controlled reversing fan first air sucker hydraulic controlled reversing fan engine lubrication pre
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cylinders 643j 843j bore rod diameter lift arm 2 3.92-in 100 mm 2.24-in 56 mm head tilt 2 3.92-in 100 mm 2.24-in 56 mm felling head information shear fb20 continuous-type disc saw fd22b single post fd22b single post fd45 twin post tires standard 28l-26 14 pr 28l-26 14 pr optional 30.5-32 ls2 16 pr 30.5-32 ls2 16 pr ground pressure data 643j/fd45 843j/fd22b ground pressure 28l-26 14 ply 28l-26 14 ply 10.6 psi 73 kpa 11.2 psi 77 kpa ground pressure 30.5-32 16 ply 30.5-32 16 ply 8.9 psi 61 kpa 9.3 psi 64 kpa data is for saw-equipped unit tires inflated to recommended pressures and 3-in 76 mm ground penetration capacities fuel tank 84 gal 320 l 84 gal 320 l cooling system 36 qt 34 l 36 qt 34 l engine lubrication including filter 28.5 qt 27 l 28.5 qt 27 l hydraulic reservoir 70 gal 265 l 70 gal 265 l two-speed gearbox 5.2 qt 4,9 l 5.2 qt 4,9 l pump drive gearbox 5 qt 4,7 l 5 qt 4,7 l operating weights standard equipment less felling head 27,990 lb 12 696 kg
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wheeled feller bunchers 643j 843j nothing runs like a deere.tm maybe those words are the reason why almost every other professional logger is a john deere customer they re just five simple words yet they have profound impact on your company because at their heart they mean equipment that is built forest tough with greater productivity more uptime and lower daily operating costs they mean a dealer network over 380 locations strong with immediate access to parts and experts that understand your industry they mean a dedicated lender in john deere credit committed to helping loggers succeed with competitive financing to enhance cash flow and they mean a global forestry equipment leader that invests more in r d than any other manufacturer but most of all these words represent the confidence that comes with over 168 years of heavy equipment experience your world is logging so is ours john deere forestry leading the way worldwide w w w johndeere c o m dka643jfb litho in u.s.a 06-02
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