Toro ProCore 648s - Adjusting the Roto-Link Dampeners

PreparingtheMachine
1.Parkthemachineonalevelsurface,fullyraise
andlatchthehandlebartoengagetheparking
brake,shutofftheengine,removethekey,and
waitforallmovingpartstostop.
2.Removethecoring-headcover;referto
RemovingtheCoring-HeadCover(page68).
3.Securethecoringheadwiththeservicelatch;
refertoSupportingtheCoringHeadwiththe
ServiceLatch(page50).
AdjustingtheRoto-Link
Dampeners
Note:Thefactorypositions1roto-linkspaceratthe
roto-linkdampenershaftand1spacerisinthestowed
positionforeachstomperarm.
Note:Adjustingtheroto-linkdampersallowsyouto
operatethemachineatfullenginespeed(3400rpm),
howeveryoumayneedtoaerateatslowerengine
speedstoimprovetheholequality.
1.Removethe2angelocknutsthatsecurethe
roto-linkdampenershafttotherearframeofthe
machine(Figure131).
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Figure131
1.Flangelocknut3.Hardenedovalwasher
2.Spacer4.Stud(roto-linkdampener
shaft)
2.Removethespacer(ifstowed)andhardened
ovalwashers.
3.Rotatethedampenerlinkanddampenershaft
down(Figure132).
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Figure132
1.Spacer4.Dampenershaft
2.Stud
5.Dampenerlink
3.Lowerbumper-spacer
4.Positiontheroto-linkspacertocorrectthe
followinghole-moundingconditions:
Note:Eachspacerisequivalentto12.7mm
(1/2inch).Thelowerbumper-spacermust
remainassembledtothedampershaft.
•Ifthefrontoftheholesisslottedor
tufted—positionthespacersabovetherear
frame,inthestowedposition.
•Ifthebackoftheholesisslottedor
tufted—positionbothspacersabovetherear
frame,ateachsideoftheroto-linkdampener
shaft.
5.Rotatethedampenerlinkanddampenershaft
up,andinsertthestudsthroughtheholesinthe
rearframeofthemachine.
6.Securethedampenershaftandspacerstothe
rearframewiththehardenedovalwashersand
locknuts(Figure133).
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