Maintenance
Adjustments
Note:DisengagePTO,shutoffengine,waitfor
allmovingpartstostop,engageparkingbrake,and
removekeybeforeservicing,cleaning,ormakingany
adjustmentstotheunit.
DeckLeveling
SeeAdjustingtheCuttingHeightsectionin
Operation.
PumpDriveBeltTension
Self-tensioning-Noadjustmentnecessary.
PTOClutchingBeltTension
SeeInspectPTOClutchingBeltTensionsection.
DeckBeltTension
Self-tensioning-Noadjustmentnecessary.
ParkBrakeAdjustment
1.Shutoffengineandwaitforallmovingpartsto
stop.
2.Disengagetheparkbrake.
3.Removethehairpinintheparkbrakelinkage.
Turnthelinkageintheyokeuntilthereis3/16
inch(4.8mm)to1/4inch(6.4mm)clearance
betweentheparkbraketirebarsandthetireswith
theparkbrakedisengaged.Re-installthehairpin.
HydroDriveLinkage
Adjustment
•AdjustSpeedControlLinkageandNeutral
SafetySwitch:
1.Stopengineandwaitforallmovingpartsto
stop.Engageparkingbrake.Removekeyor
sparkplugwire(s).
2.Movethespeedcontrollever(locatedon
theconsole)tothefullforwardpositionand
checktheorientationofthetabsontheends
ofthespeedcontrolcrank(see
Figure16).
Thesetabsshouldbepointingstraightdown
atthe6o’clockpositionorslightlyforward.
Adjustthethreadedyokeatthebottomofthe
speedcontrollinkage(see
Figure16)untilthe
tabsarepositionedcorrectly.
Figure16
ViewedfromLeftSideofUnit
1.NeutralSafetySwitch3.5/16inch(7.9cm)
2.ActuatingTab
3.Pullthespeedcontrolleverbacktoneutral.
Checkthattheneutralsafetyswitchactuating
tabhasdepressedtheplungeroftheswitchso
thatthereisabout5/16inch(7.9cm)between
thetabandtheswitch(see
Figure16).If
necessary,movetheswitchforeandaft.
•AdjustNeutralControlLinkages:
1.Raisetherearofthemachineupontojack
standshighenoughtoraisethedrivewheels
offoftheground.
2.Starttheengineandmovethethrottleahead
tothefullthrottleposition.Placetheneutral
locklatchesinthe“forward”positionas
shownin
Figure4.Releasetheparkbrake
andmovethespeedcontrollevertothe
“mid-speed”position.
Note:TheOPCleversmustbehelddown
andtheparkbrakemustbedisengaged
wheneverthespeedcontrolleverismoved
outofneutralortheenginewillkill.
3.Squeezetherespectivedriveleveruntilan
increasedresistanceisfelt,thisiswhere
neutralshouldbe.
Ifthewheelturnswhileholdingthedrive
leverinneutral,theneutralcontrollinkages
needtobeadjusted.Ifthewheelstopsthen
gotostep7.
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