Exmark Lazer Z Series - Motion Control Damper Adjustment; Caster Pivot Bearings Pre-Load Adjustment

Maintenance
5.Loosenlocknutsfromtheballjointsateachend
ofthepumpcontrollinkage(Figure53).
g228557
Figure53
Right-HandSideofUnit
1.Turnheretoadjust
2.Loosenhere(right-hand
thread)
6.Startengine.Brakemustbeengagedand
motioncontrolleversouttostartengine.
Operatordoesnothavetobeintheseat
becauseofthejumperwirebeingused.Run
engineatfullthrottleandreleasebrake.
Note:Themotioncontrolleverneedstobein
neutralwhilemakinganynecessaryadjustments.
Theleftrodassemblycontrolstheleftwheeland
therightrodassemblycontrolstherightwheel.
7.Bringthemotioncontrolleverintotheneutral
position.AdjustRHpumpcontrolrodlength
byrotatingthedoublenutsontherodinthe
appropriatedirectionuntilthewheelsslightly
creepinreverse.Movethemotioncontrollever
tothereversepositionandwhileapplyingslight
pressuretotheleverallowthereverseindicator
springtobringtheleversbacktoneutral.The
wheelmuststopturningorslightlycreepin
reverse.Whenadjustmentiscomplete,tighten
locknutsontoballjoints.RepeatforLHmotion
controllever.
8.Shutoffunit.Removejumperwirefromwire
harnessconnectorandplugconnectorintoseat
switch.
MotionControlDamper
Adjustment
Thetopdampermountingboltcanbeadjustedto
obtainamoredesiredmotioncontrolleverresistance.
SeeFigure54formountingoptions.
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Figure54
RHMotionControlShown
1.Torquenylocnutto200in-lb(16.7ft-lb).Boltmust
protrudepastendofnylocnutaftertorque.AT-40T orx
bitwillbenecessarytoholdthestudfromturning.
2.Mostresistance(rmestfeel)
3.Damper
4.Mediumresistance(mediumfeel)
5.Leastresistance(softestfeel)
CasterPivotBearings
Pre-LoadAdjustment
Removedustcapfromcasterandtightennylocnut
untilwashersareatandbackoff1/4ofaturn
toproperlysetthepre-loadonthebearings.If
disassembled,makesurethespringdiscwashersare
reinstalledasshowninFigure55.
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