Exmark Frontrunner 720,000 & Higher Serial Nos. - Adjustments

Maintenance
•Pumpdrivesheavesetscrews.
•Lineshaftsheavesetscrews.
•SquareheadsetscrewsonHydropumpcontrol
arms.
•Sheaveretainingboltintheendofengine
crankshaft.
•Casterwheelspacernuts.
•Fueltankbulkheadttingnuts.
•Motioncontroltabretainingbolt.
Adhesivessuchas“LoctiteRC/609orRC/680”or
“Fel-ProPro-LockRetainingIorRetainingII”are
usedonthefollowing:
Fueltankstuds,wherestudsareinsertedintotank.
DielectricGrease
Dielectricgreaseisusedonallbladetypeelectrical
connectionstopreventcorrosionandlossofcontact.
Adjustments
Note:DisengagePTO,shutoffengine,waitfor
allmovingpartstostop,engageparkingbrake,and
removekeybeforeservicing,cleaning,ormakingany
adjustmentstotheunit.
PumpDriveBeltTension
Self-tensioning-Noadjustmentnecessary.
PumpDriveBelt
Replacement
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Removepumpdrivebelt.
3.Routenewbeltontosheavesasshowninthe
decallocatedontherighthandsideoftheleft
hoodsupport(seeFigure11).
Figure11
ParkBrakeAdjustment
Checktomakesurebrakeisadjustedproperly.
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Tiltseatforwardandraisehood.
3.Pullthebrakeleverupintotheengagedposition.
4.Locatetheparkbrakespringassembly(see
Figure12).Thereshouldbeagapof1/8inch(3
mm)betweentheyokeandthinnylocnutonthe
brakebolt.Ifnecessary,rotatethethinnylocnut
toobtainthe1/8inchgap.
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