Toro 74020 - Adjusting the Motion-Control Linkage

Adjustingthe
Motion-ControlLinkage
Locatedoneithersideofthemachine,belowtheseat,
arethepump-controllinkages.Rotatingtheendnut
witha1/2-inchdeepsocketwrenchallowsnetuning
adjustmentssothatthemachinedoesnotmovein
neutral.Anyadjustmentsshouldbemadeforneutral
positioningonly.
WARNING
Theenginemustberunningandthedrive
wheelsturningsothatyoucanperformthe
adjustments.Contactwithmovingpartsor
hotsurfacesmaycausepersonalinjury.
Keepyourngers,hands,andclothingclear
ofrotatingcomponentsandhotsurfaces.
1.Parkthemachineonalevelsurface,disengage
theblade-controlswitch(PTO),andengagethe
parkingbrake.
2.Shutofftheengine,removethekey,andwait
forallmovingpartstostopbeforeleavingthe
operatingposition.
3.Pushthedeck-liftpedal,removetheheight-of-cut
pin,andlowerthemowerdecktotheground
4.Raisetherearofthemachineupandsupportit
withjackstands(orequivalentsupport)justhigh
enoughtoallowthedrivewheelstoturnfreely.
5.Removetheelectricalconnectionfromtheseat
safetyswitch,locatedunderthebottomcushion
oftheseat.
Note:Theswitchisapartoftheseatassembly.
6.Temporarilyinstallajumperwireacrossthe
terminalsintheconnectorofthemainwire
harness.
7.Starttheengine,runitatfullthrottle,and
disengagetheparkingbrake.
Note:Beforestartingtheengine,ensurethat
theparkingbrakeisengagedandthatthe
motion-controlleversareout.Youdonothave
tobeintheseat.
8.Runthemachineatleast5minuteswiththe
driveleversatfullforwardspeedtobringthe
hydraulicuiduptotheoperatingtemperature.
Note:Themotion-controlleversmustbein
neutralwhileyouaremakinganyadjustments.
9.Bringthemotion-controlleversintotheNEUTRAL
position.
10.Checkandensurethatthecontrol-platetabs
touchthereturn-to-neutralplatesonthe
hydraulicunits.
11.Adjustthepump-control-rodlengthsbyrotating
thenutintheappropriatedirectionuntilthe
wheelsslightlycreepinreverse(Figure79and
Figure80).
g334848
Figure79
1.Accessholefor1/2-inchsocket
g036753
Figure80
1.Nut4.Return-to-neutralplate
2.Stationaryplate
5.Tabstouchingreturnto
neutralplate
3.Controlplate
12.Movethemotion-controlleverstotheREVERSE
positionandwhileapplyingslightpressureto
thelever,allowthereverse-indicatorspringsto
bringtheleversbacktoneutral.
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