Exmark VIKING 408 - Page 38

Maintenance
locklatchesinthe“forward”positionas
showninFigure4.Releasetheparkbrake
andmovethespeedcontrollevertothe
“mid-speed”position.
Note:TheOPCleversmustbehelddown
andtheparkbrakemustbedisengaged
wheneverthespeedcontrolleverismovedout
ofneutralortheenginemustbeginshutdown.
3.Squeezetherespectivedriveleveruntilan
increasedresistanceisfelt,thisiswhere
neutralshouldbe.
Ifthewheelturnswhileholdingthedrive
leverinneutral,theneutralcontrollinkages
needtobeadjusted.Ifthewheelstopsthen
gotostep7.
g006962
Figure20
ViewedfromLeftSideofUnit
1.NeutralControlLinkage5.SpeedControlLinkage
2.HydroControlLinkage
6.Adjusthere-rotateat
approximately1/4
turnincrementsand
re-check.
3.DriveLeverLinkage7.Loosennut
4.SpeedControlCrank
8.Yoke
4.Loosenthenutagainsttheneutralcontrol
linkageyokeasshowninFigure20.
5.Adjusttheneutralcontrollinkageuntil
therespectivedrivewheelstopswhenthe
leverispulledagainsttheneutralspring
(neutralposition).Turntheadjustingbolt
approximately1/4turnclockwiseifthe
wheelisturninginreverseorturnthebolt
approximately1/4turncounterclockwiseif
thewheelisturningforward.Releasethe
drivelevertotheforwarddrivepositionand
squeezebackintotheneutralposition.Check
toseeifthewheelstops.Ifnot,repeatthe
aboveadjustmentprocedure.
6.Makethisadjustmentonbothsides.
7.Afteradjustmentsaremadeandthewheels
stopwhenthedriveleversareintheneutral
position,tightenthenutsagainsttheyokes.
•AdjustHydroControlLinkages:
1.Placethespeedcontrolleverinthe“neutral”
position.Thisadjustmentisagainmadewith
rearofmachineonjackstandsandengine
runningatfullthrottle.OPCleverswillhave
tobehelddownandtheparkbrakemustbe
disengagedwheneverspeedcontrolleversare
movedoutoftheneutralposition.
Note:Theneutrallocklatchesshouldbe
“unlocked”andintheforwardposition.
2.Loosenthefrontnutonlefthydrocontrol
linkageasshowninFigure20.Turntherear
controllinkageadjustingnutcounterclockwise
untilwheelrotatesforward.Turntherearnut
ofleftcontrollinkageclockwise1/4ofaturn
atatime,stoppingtomovethespeedcontrol
forwardandbacktoneutral,untilleftwheel
stopsrotatingforward.
Turntherearnutanadditional1/2turnand
tightenthefrontnutmakingsurenottoput
abindonthelinkage.Makesureatpartof
linkageisperpendiculartopinpartofswivel
(seeFigure21).
g006195
Figure21
1.LeftHydroControlLink
(leftsideshown)
4.Linkageisperpendicular
topin(correctposition)
2.Frontnut5.Linkageinincorrect
position
3.Rearnut
6.Endviewofswivel
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