Case March 2014 - Page 14

INTRODUCTION
Disassemblingandassemblinghydraulicequipment
1.Removinghydraulicequipment
1.Beforedisconnectingpipes,releasethehydraulicpressureofthesystem,oropenthereturnsidecoverand
takeoutthelter.
2.Carefullydrainoiloftheremovedpipesintoacontainerswithoutspillingontheoor.
3.Applyplugsorcapsonthepipeendstoavoidoilspillageanddustintrusion.
4.Cleanofftheexternalsurfaceoftheequipmentbeforedisassembling,anddrainhydraulicandgearoilbefore
placingitontheworkbench.
2.Disassemblinghydraulicequipment
1.Donotdisassemble,reassembleormodifythehydraulicequipmentwithoutthepermissionofthemanufacturer,
whoisnotresponsiblefortheperformanceandfunctionoftheproductaftermodication.
2.Whendisassemblingandreassemblingforunavoidablereason,refertheworktoqualiedpersonnelwhohave
thespecicknowledgeorcompletedthepartsservicetraining.
3.Providematchingmarkstofacilitatereassemblingwork.
4.Beforestartingthework,readthemanualofdisassemblingprocedure,ifitisprovided,anddecidewhetherthe
workcanbeperformedbyyourself.
5.Usethespecialjigandtoolswithoutfailiftheyarespecied.
6.Ifitishardtoremoveapartaccordingtotheprocedure,donottryitbyforcebutinvestigatethecause.
7.Placetheremovedpartsinorderandattachtagstofacilitatethereassembling.
8.Notethelocationandquantityofpartscommonlyappliedtomultiplelocations.
3.Inspectingparts
1.Ensurethatthedisassembledpartsarefreefromseizure,interferenceandunevencontact.
2.Measureandrecordwearconditionofpartsandclearance.
3.Iftheproblemisfoundinapart,repairorreplaceitwithanewone.
4.Reassemblinghydraulicequipment
1.TurnOntheventilationfanoropenwindowstomaintaingoodventilationpriortostartingthecleaningofparts.
2.Performroughandnishcleaningbeforeassembling.
3.Removewashingoilbyairandapplycleanhydraulicorgearoilforassembling.
4.AlwaysreplacetheremovedO-rings,backupringsandoilsealswithnewonesbyapplyinggreaseinadvance.
5.Removedirtandmoisturefromandperformdegreasingonthesurfacewhereliquidgaskettobeapplied.
6.Removerustpreventiveagentfromthenewpartsbeforeuse.
7.Fitbearings,bushingsandoilsealsusingspecialjigs.
8.Assemblethepartsutilizingmatchingmarks.
9.Ensureallthepartsarecompletelyassembledafterthework.
5.Installinghydraulicequipment
1.Ensurehydraulicoilandlubricantareproperlysupplied.
2.Performairbleedingwhen:
1.Hydraulicoilchanged
2.Partsofsuctionsidepipingreplaced
3.Hydraulicpumpinstalled
4.Slewingmotorinstalled
5.Travelmotorinstalled
6.Hydrauliccylinderinstalled
47574282B24/03/2014
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