Toro Reelmaster 5510-D - Torque Specifications

TorqueSpecications
Therecommendedfastenertorquevaluesarelistedinthefollowingtables.For
criticalapplications,asdeterminedbyT oro,eithertherecommendedtorqueora
torquethatisuniquetotheapplicationisclearlyidentiedandspeciedinthis
ServiceManual.
Thesetorquespecicationsfortheinstallationandtighteningofthefastenerswill
applytoallthefastenerswhichdonothaveaspecicrequirementidentiedin
thisServiceManual.Thefollowingfactorsmustbeconsideredwhenapplying
thetorque:cleanlinessofthefastener,useofathreadsealant(e.g.,Loctite),
degreeoflubricationonthefastener,presenceofaprevailingtorquefeature
(e.g.,Nylocknut),hardnessofthesurfaceunderneaththeheadofthefastener,
orsimilarconditionwhichaffectstheinstallation.
Asnotedinthefollowingtables,thetorquevaluesshouldbereducedby25%
forthelubricatedfastenerstoachievethesimilarstressasadryfastener.The
torquevaluesmustbereducedwhenthefasteneristhreadedintothealuminum
orbrass.Thespecictorquevalueshouldbedeterminedbasedonthealuminum
orbrassmaterialstrength,fastenersize,lengthofthreadengagement,etc.
Thestandardmethodofcheckingthetorquecanbeperformedbymarkingaline
onthefastener(headornut)andmatingpart,thenbackoffthefastener1/4
ofaturn.Measurethetorquenecessarytotightenthefasteneruntilthelines
matchup.
IdentifyingtheFastener
g221827
Figure4
InchSeriesBoltsandScrews
1.Grade12.Grade53.Grade8
g221828
Figure5
MetricBoltsandScrews
1.Class8.82.Class10.9
FastenerswithaLockingFeature
Threadedfastenerscanloosenwhenexposedtoshock,vibrationandother
dynamicforces.Inthesesituations,alockingfeaturemaybeused.Afastener
withalockingfeatureisdesignedtoresistloosening.Lockingfeaturescanbe
Reelmaster
®
5410/5510/5610Series
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SpecicationsandMaintenance:TorqueSpecications
15216SLRevC