breakerbeusedfor dismantlingwork.
Alternatively,abreakersteelgrippedin alowvicemay beused.
Thefollowinggeneralprecautionsmustbeobservedwhen servicing
hydraulicbreakers：
lAbsolutecleanliness isessential.Mosthydraulicfailuresare
causedbytheingress of dirt.
lBeforedismantlingacomponent,cleanexternalsurfacesand
drainall fluid.
lWhen holdingcomponentsin avice,fit softmetalpadsoverthe
vicejawstoprevent damageanddistortiontoprecisionsurfaces
andbores.
lAll partsshouldbelaidouton aclean resilientsurface.Special
attention shouldbepaidtotheidentification ofpartsandtheir
dismantlingsequence.
lAll dismantledmetalpartsshouldbewashedinacleaningsolvent
andcoatedwith hydraulicfluid.
lAll solvent cleanersinusemustbeapprovedbythesafety
management of thecompany wheretheworkisbeingcarriedout
andtheCOSHHregulationsreadandunderstood.
lItisrecommendedthatall disturbedsealsberenewed.Ifasealis
reused, itshouldbeclosely examinedfor cuts,flawsor wear.A
sealthatissuspectshouldneverbereused.
lAll internalmetalpartsandsealsshouldbelightly coatedwith
cleanhydraulicoilor alithium basedno.2gradegreasebefore
assembly.Thisassistsin assemblyandlessenstherisk ofseal
damage.Useonlysealsprovidedincomponent servicekits,which
areobtainablefromMasterpacEngineeringCo.,Ltdortheiragents,
as thesewill beof adifferentcomposition andhardness toseals
normally commercially available.
HydraulicPipesandHoses
When removingandreplacingrigidpipesandflexiblehosesthe
followingpointsshouldbeobserved:
lUseadjustableor open-endedspannersonendconnectionsand
fittings.Donotusepipewrenchesas thesedamagefittingsand
protectiveplating.
lEnsuretheparticularconnection anditssurroundingareais
clean.
ServiceTools
Useofthecorrectservicetoolscontributestoanefficient,economic
