35
Revisions
TheUpperTensionPlatechangedatSerialNo.636167.
TheslottedscrewswhichattachandadjusttheUpper
TensionSpringwerechangedtoweldstudsandnylon
locknuts.
AbrassbushingwasaddedtothetopholeoftheUpper
TensionSpring.
ASpringWasherwasaddedunderthefirstTensionDiscat
SerialNo.~878656
Cleaningandinspection
Beforeattemptingtomakeanyadjustments,inspectthe
tensionassemblytoinsureitiscleanandnotrestrictedby
loosethreads,lintanddebris.
Removethe2PhillipsheadscrewsthatmounttheUpper
TensionAssemblytothefrontcover.
BeforedisassemblingtheUpperTensionDevice,recordthe
dimensionofthebottomretainingnutorscrew.
TheUpperTensionDevicemustbereturnedtothis
dimensionwhenreassembled.
Caution!BecarefulnottolosetheTensionRegulatorPin.
OncetheUpperTensionAssemblyisremovedfromthefront
cover,theTensionRegulatorPinisfreetofallout.
ItisnotnecessarytoremovetheTensionRegulatorSpring
adjustmentnutorscrewtocleanandservicetheUpper
TensionDevice.Ifyoudoremoveit,firstrecordthe
dimensionandreturnittothatsamepositionduring
reassembly.
ThereisaLiponthetensiondiscbushingwhichcapturesthe
CheckSpring.
TheCheckSpringwillnotslideofftogetherwiththeTension
Discsduetotheretaininglip.
Caution!ToavoiddamagingtheCheckSpring,carefullylift
theendoftheCheckSpringtoremoveallcomponentsoneat
atimebeforeremovingtheCheckSpring.