John Deere 644H - Manual (Page 2)

64411
En~ine 64411
Type JohnDeere POWERTECHTM 6081H; meetsEPA TierIInon-road emissions regulations
Cylinders 6
Displacement 496cu.in.(8.1L)
Rated power 180SAEnethp(134kW)@2,200rpm
Peakpower 221SAEnethp(165kW)@1,600rpm
Netpeaktorque 755lb.-ft.(1020Nm)@1,300rpm
Nettorquerise 75%
Netpowerbulge 23%
Fuelsystem high-pressure common rail
Fuelconsumption, typical 4.3to7.5gal./hr. (16.3to28.4Uh)
Fueltankcapacity 100gal.(379L)
Lubesystem full-flowspin-on filterandintegral cooler
Aspiration turbocharged, charge aircooled
Aircleaner dualelement drytype;restriction indicator forservice
Fandrive hydraulically driven, fanaftofcoolers
Airflow rearward
Electrical system 24voltwith55-amp alternator
Batteries (two12volt) 950CCA; reserve capacity: 200min.- standard / 1,400CCA; reserve capacity: 200min.- optional
Transmission
Type countershaft-type powershift
Converter single-stage, single-phase torqueconverter
Shiftcontrol electronically modulated, adaptive, loadandspeed dependent
Operator interface steering column-mounted twist-grip shiftlever, quick-shift buttononhydraulic lever
Shiftmodes auto/manual, autoto 1stor2nd,kickdownorkickup/down, threeclutchcutoffsettings
Travel speeds* Forward Reverse
Gear 1 4.6mph(7.4km/h) 4.9mph(7.9km/h)
Gear 2 7.6mph(12.2km/h) 8.0mph(12.8km/h)
Gear 3 14.7mph(23.6km/h) 15.5mph(24.9km/h)
Gear 4 22.0mph(35.4km/h)
*Equipped with23.5R25radialtires.
Axles/Brakes
Finaldrives heavy-duty inboard planetary
Differentials conventional frontandrear- standard; hydraulic locking front,conventional rear- optional; duallocking frontandrear-
optional; limitedslipfrontandrear- optional
Rearaxleoscillation, stoptostop 26degrees
Brakes (conform toSAEJ1473,IS03450)
Service brakes hydraulically actuated, inboard, carriermounted, pressure oilcooled, selfadjusting, multidisc
Parking brake automatically springapplied, hydraulically released, oilcooled, multidisc
lIydraulic System/Steerin~
Pump (loader andsteering) variable-displacement, axialpistonpump;closed-center, pressure-compensating system
Maximum flow 68gpm(257Urn)@1,000psi(6895kPa)and2,200rpm
Pressure Ioader andsteering relief3,600psi(24850kPa)
Loader controls two-function valve;single-anddual-lever controls; controlleverlockout feature; optional third-andfourth-function valvewith
auxiliary lever
Hydraulic cycletimes
Raise 6.2sec.
Dump 1.4sec.
Lower 3.0sec.(floatdown)/ 3.5sec.(power down)
Total 10.6sec.
Maximum liftcapacity with4.25-cu. yd.(3.3nr) stockpiling andgeneral-purpose bucketwithbolt-oncuttingedge
Liftatground level 34,166lb.(15495kg)
Liftatmaximum height 20,226lb.(9173kg)