Maintenance
clockwiseabout1/4turnatatime,stopping
tomovethespeedcontrolforwardandback
toneutral.Recheckthedrivewheelrotation
toseeiffurtheradjustmentisnecessary.
4.Thespringthatkeepstensionontheknob
shouldnormallynotneedadjustment.
However,ifadjustmentisneeded,adjustto
wherelengthofspringisabout1inch(2.5cm)
betweenthewashers.Adjustspringlengthby
turningnutatfrontofspring.
•DriveLeverLinkageAdjustment:
1.Withrearofmachinestillonjackstandsand
enginerunningatfullthrottle,disengage
theparkbrakeandmovethespeedcontrol
levertothemidwayposition.Movethe
respectivedriveleverupwarduntilitreaches
theneutralpositionandengageneutrallock
latches(
Figure19).Ifthetirerotatesineither
direction,thelengthofthedriveleverlinkwill
needtobeadjusted.
Figure19
2.Adjustthelinkagelengthbylooseningthejam
nutsatbothendsofthelinkageandrotating
thelinkageintheballjoints.Lengthenthe
linkageifthetireisturninginreverseand
shortenthelinkageifthetireiscreeping
forward.Tightenthejamnutsatbothends.
Releaseandre-engagetheneutrallocklatch
checkingthatthetirestops.Continuethis
processuntilthetireisatadeadstop.
3.Makethisadjustmentforbothsides.
4.Stopengineandwaitforallmovingparts
tostop.Raiserearofmachine,removejack
stands,andcarefullylowermachinetothe
ground.
TrackingAdjustment
1.Stopengineandwaitforallmovingpartstostop.
2.Checkthedrivetirepressuresandtire
circumferencesasstatedinChecktheTire
PressuressectioninMaintenance.
3.Runtheunitandobservethetrackingonalevel,
smooth,hardsurfacesuchasconcreteorasphalt.
4.Iftheunittrackstoonesideortheother,turnthe
quicktrackknob.Turntheknobrightto“steer”
right,turntheknobleftto“steer”left.
HydroPumpSpringTension
Setting
1.Formediumorheavydutydriveconditionssuch
asoperationwithasulkyonsteepslopes,ahigher
springforcemayberequiredonthehydropump
controlarmstopreventthedrivesystemfrom
stalling.
2.Foraheavierdrivesetting,relocatethespring
anchorlinkasshowninFigure13.Thespring
anchorlinksarelocatedundertheenginedeckon
theleftandrighthandsides.
Note:In“medium”or“heavyduty”positions,
thedriveleverforcesattheupperhandlewillalso
beincreased.
Figure20
1.Heavyduty
3.Standard
2.Mediumduty4.Retainingbolt
36