VTK‐VS‐BA‐004e‐B|UserManualMDS3200A | Maintenance
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9.3.1.4 GreasingandRemounting
Step1: PushthetappetspringontotherodandgreaseatpointA1andA2.Make
suretoavoidgettinggreaseonthetipofthetappet.
Step2: Theactuatortightseatmustbereinstalledontherod.Itisimportant,that
theshortface
oftheseatislocatedinthespring.
Step3: SlidethenewO‐ringsontotherod,untiltheycontactthelongsideofthe
actuatortightseat.GreasepointA3.
Step4: Whileslowlyrotating,pushthetappetcenteringscrewontotheactuator
tightseat.Therecessof
thecenteringscrew(forthetool)mustpointto‐
wardsthetappettip.
Step5: Thecompletespring(A4)mustbecoatedwithasmallamountofgrease.
Thetappetcanbeinserted,andthedispensingprocessmaybecontinuedaftertheadjust.
9.3.2 TTF‐andCTF‐tappet
9.3.2.1 Demounting
Step1: Carefullyremovethenozzleunitfromthefluidbox.(1)
Step2: BothM2.5hexagonscrewsofthefluidboxmustbeloosenedandun‐
screwed.Slowlyslideawaythefluidboxfromthetappet.Thefluidbox
mustnotbejammed,otherwisethetappetmaybreakoff!(2)
Step3: Tounscrewthetappetitself,proceedasfollows:
Tool
MDT310featuresareceptacleboringforthetappet.Thisboringhasto
bepushedcarefullyoverthetappet,untilthestudsofthetoollatchinthecor‐
respondingrecessofthetappetcenteringscrew(3).
Inordertodisengagethetappet,rotatethetoolcounterclockwise,witha
slightconstantpressure(4).
Separatethetoolfromthetappet.Thetappetnowcanberemovedthrough
thecaseboringofthevalve(5).
9.3.2.2 Installation
Tore‐installatappet,performthesequencedescribedaboveinreversedorder.
Aftercompletion,donotforgettoexecutetheadjust.
9.3.2.3 Disassembly
andCleaning
Step1: Holdthetappetattheguidingfacebetweenthumbandindexfinger(X1).
Step2: Byslightlyrotating,separatethetappetcenteringscrewfromthetappetrod.
Step3: Removethetappetspringfromtherod.
Step4: Allofthepartsshouldbesubjectedto
ultrasoniccleaning(ifrequired).
9.3.2.4 GreasingandRemounting
Step1: GreasethetappetrodatpointA1.
Step2: PushthetappetspringontotherodandgreasepointA2.
Step3: Whileslowlyrotating,pushthetappetcenteringscrewontotherod.
Therecessofthecenteringscrew(for
thetool)mustpointtowardsthe
tappettip.
Step4: Thecompletespringmustbecoatedwithasmallamountofgrease(A3).
Thetappetcanbeinserted,andthedispensingprocessmaybecontinuedaftertheadjust.