
assemblethebushing,spacer,andextensionspring
ontothetightenerarmassemblyasshowninFigure2.
14.Securetheupperspringhooktotheframeusing
3/8-16x21/2inchbolt,spacer,bushing,and3/8inch
nylocnutasshowninFigure2.
15.Attachthelowerendofthedampenertotheoutside
holeinthetightenerarmassemblyusing3/8-16x2
1/2inchcarriagebolt,spacer,and3/8inchanged
nutasshowninFigure2.
Note:Besuretoinstallthedamperwiththerodend
downforproperoperation.
16.Attachtheupperendofthedampertothebracket,
installedinstep9,using3/8-16x21/2inchcarriage
bolt,spacer,and3/8inchnutasshowninFigure2.
17.Usingthesametechniquefromstep4,extendthe
springandslipthebeltbackintothepulleygroove.
Makesurethebeltispositionedinallthepulley
grooves.Slowlyreleasethespring.Adjustthebelt
tensionpertheMuleDriveBeltTensionAdjustment
section.
MuleDriveBeltTension
Adjustment
Note:Adjustthemulebeltdrivetensioninitiallyandthen
aftertherstvehours.
Self-tensioningidler,adjustasfollows:
1.Stopengine,waitforallmovingpartstostop,and
removekey.Engageparkingbrake.
2.Ontheleftsideoftheenginedecksupport,checkthe
locationoftheboltheadinthecenterofthespring
loadedpulley.Thetopoftheboltshouldbeatthe
bottomoftheupperalignmentholeasshownin
Figure6.Itisnecessarytoadjustthebelttensionwhen
thecenteroftheboltheadisatorbelowthecenterof
thebottomalignmenthole.
Figure6
1.Frontofunit2.Locatethetopofthebolt
withthebottomofthe
upperalignmenthole
3.Whenadjustmentisnecessary,loosentheidlerpulley
ontheright-handsidesoitcanmoveupanddownin
theslot.
Placeawrenchonthe3/8inchnutinthecenterof
thespringloadedpulleyandapplyupwardpressureto
relievetensiononthespring(1/2inchdrivebreaker
barand9/16inchsocketworksbest).
Repositiontheadjustingpulleytowardsthebottomof
theslot.
Note:Wheninstallinganewbelt,itisnecessarytoreposition
therightadjustingpulleyupwardintheslotinordertoplace
thespringloadedpulleyinthecorrectlocation(reference
step2).
Figure7
1.Springidlerpulley
2.Frontofunit
3.Rightsideidlerpulley(adjustable)
4