Link Belt Crane HT-300 Service Manual

                     

   

HydraulicSystemCleaning Procedure

Thehydraulicsystemofacranecanbecome contaminatedveryrapidlywhenacomponentinthe systemfailsandbreaksup.Thecontaminantsfromthe failedcomponentmustberemovedfromthehydraulic systembeforetheycausefailureofothercomponents inthesystem.Toremoveasmuchofthecontaminants inthesystemaspossible,thefollowingprocedureis recommended.

WARNING

Hydraulicoilisunderpressureandmaybe hot.Asuddenreleaseofhotoilcouldcause burnsorotherseriousinjury.Shutdownthe engineandexhaustalltrappedhydraulic pressurefromthesystembeforeremoving anylineorcomponent.

1.Relieveanypressureinthehydraulicsystemand drainthehydraulicsystemoilfromthereservoir. FollowtheprocedureasoutlinedinOperator’s Manual.

WARNING

Solventsandcleaningsolutionscanbe hazardous.Seriouspersonalinjurymay resultfrommisuseoftheseproducts.Read andfollowallthemanufacturer’s recommendationsconcerningsolventsand cleaningsolutions.

2.Thoroughlycleanareatobedisassembledwithan approvedcleaningsolventtopreventcontaminationfromenteringtheoilcircuits.Allowtheareato airdry.

3.Remove,disassemble,clean,andreassembleall hydrauliccomponents.(Controlvalves,cylinders, motors,etc.)Refertotheappropriatesectionof ServiceManualforspecificremovalandreconditionprocedures.

4.Disconnectallhydrauliclinesanddrainasmuchoil aspossible.

5.Installallthehydrauliccomponentsonthecrane andconnectallthelines.Refertotheappropriate sectionofServiceManualforspecificinstallation procedures.

6.FollowtheproceduresinOperator’sManualto changeallhydraulicoilfiltersandrefillthehydraulic reservoir.

7.Startthecraneandinspectallconnectionsfor leaks.

8.After50hoursofoperation,allhydraulicoilfilters mustbechangedagain.RefertoOperator’s Manualforthecorrectprocedure.