
INTRODUCTION
NotetotheOwner
Generalinstructions
Importantnotice
AllmaintenanceandrepairoperationsdescribedinthismanualshouldbecarriedoutexclusivelybytheNEWHOL-
LANDauthorisedworkshops.Allinstructionsdetailedshouldbecarefullyobservedandspecialequipmentindicated
shouldbeusedifnecessary.
Everyonewhocarriesoutserviceoperationsdescribedwithoutcarefullyobservingtheseprescriptionswillbedirectly
responsibleofderivingdamages.
Shimming
Ateachadjustment,selectadjustingshims,measurethemindividuallyusingamicrometerandthensumuprecorded
values.Donotrelyonmeasuringthewholeshimmingset,whichmaybeincorrect,oronratedvalueindicatedfor
eachshim.
Rotatingshaftseals
Tocorrectlyinstallrotatingshaftseals,observethefollowinginstructions:
•Letthesealsoakintothesameoilasitwillsealforatleasthalfanhourbeforemounting.
•Thoroughlycleantheshaftandensurethattheshaftworkingsurfaceisnotdamaged.
•Placethesealingliptowardstheuid.Incaseofahydrodynamiclip,considertheshaftrotationdirectionandorient
groovesinorderthattheydeviatetheuidtowardstheinnersideoftheseal.
•Coatthesealinglipwithathinlayeroflubricant(oilratherthangrease)andllwithgreasethegapbetweenthe
sealinglipandthedustlipofdoublelipseals.
•Insertthesealintoitsseatandpressitdownusingaatpunch.Donotapthesealwithahammeroradrift.
•T akecaretoinsertthesealperpendicularlytoitsseatwhileyouarepressingit.Oncethesealissettled,ensure
thatitcontactsthethrustelementifrequired.
•T opreventdamagingthesealinglipagainsttheshaft,placeasuitableprotectionduringinstallation.
O-rings
LubricatetheO-ringsbeforeinsertingthemintotheirseats.ThiswillpreventtheO-ringsfromrollingoverandtwine
duringmountingwhichwilljeopardisesealing.
Sealers
Applyoneofthefollowingsealers:RTVSILMATE,RHODORSILCAF1,orLOCTITE®PIASTICGASKEToverthemating
surfacesmarkedwithanX.
Beforeapplyingthesealer,preparethesurfaceasfollows:
•Removepossiblescalesusingametalbrush.
•Thoroughlydegreasethesurfacesusingoneofthefollowingcleaningagent:trichlorethylene,petrolorawaterand
sodasolution.
Bearings
Itisadvisabletoheatthebearingsto80–90°C(176–194°F)beforemountingthemontheirshaftsandcoolthem
downbeforeinsertingthemintotheirseatswithexternaltapping.
Rollpins
Whenttingstraightrollpins,ensurethatthepinnotchisorientedinthedirectionoftheefforttostressthepin.Coil
rollpinscanbeinstalledinanyposition.
4819461727/09/2017
3