Farr KT5500 - Page 60

KT5500 5-
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” Tong & CLInCHER® BaCKup
SECTIon ConTEnTS
3.22
TECHnICaL ManuaL
MaInTEnanCE
23.
Whilerotatingthecageplate,ensurethatthe jawsproperlycam.Ifthejawsdonotcamproperly,thebrakebands
needtobetightened.IncrementallyadjustboththetopandbottombrakebandsEQUALLYuntilpropercamaction
isachieved.
13.
Performavisualinspectionofallhydrauliclines.Replaceflexiblelinesiftheyappeartobecracked,fatigued,orhave
visiblesignsofwearfromcontactwitharigidobject.
14.
Performacompletegreasingofthetong-refertoMaintenancesectionofthetechnicalmanual
15.
Ensuremainsupplyandreturnconnectionstothetongarefullymadeup.Re-connecttheremainderofthehydraulic
lines,and,ifapplicable,theelectricallinetotheturnscounter.
FAILURE TO ENSURE THAT THE SELF-SEALING SUPPLY AND RETURN LINES ARE FULLY
MADE UP MAY RESULT IN CATASTROPHIC EQUIPMENT FAILURE.
NEVER OPERATE YOUR EQUIPMENT WITH A BYPASSED OR MALFUNCTIONING SAFETY
DOOR
Ifusingastand-alonepowerunit,startitnow-refertothepowerunittechnicalmanualforstartupprocedures.Listentopowerunitfor
amomenttoseeifthereareanyunusualmechanicalsounds(rubbing,grinding,excessivepumpnoise).Ifusingadieselunit,allow
sufficienttimefortheenginetoreachoperatingtemperaturebeforeincreasingengineRPM.Onceengineiswarm,graduallyincrease
engineRPMuntiloperatingspeedisreached.
16.
Ensurethatsupplypressureisatorabovethetong’sspecifiedoperatingpressure,andthatthereturnpressureisless
than350psi.
17.
Performavisualinspectionofpressurizedhydrauliclines.Documentandcorrectanyhydraulicfluidleaks.
18.
Performafullfunctionaltestofthetong.Reportandcorrectanyhydraulicleaksfromthehydraulicvalvebank,orfrom
anyhydrauliccylindersthatareused.
19.
Performavisualinspectionoftheloadcell.Ifusingatensionloadcell,replaceanycracked,broken,ordistortedcom-
ponentsincludinglinksandchains.Ifusingacompressionloadcell,replaceanycomponentthathasbeencrushedor
otherwisedistortedthroughcompression.
20.
Ifapplicable,inspecttheloadcellanchorpins(tensionloadcellonly).Replacetheanchorpinsifcrackingormetal
distortionisseen.
21.
Ifapplicable,theweldsecuringthesingleloadcellanchortothebridgebarmainplatemustbeinspected(compression
loadcellonly).Iftheintegrityoftheweldhasbeencompromised,thetongmustberemovedfromserviceuntiltheweld
isrepaired.Theloadcellbeamwillneedtobedisconnectedandremovedsotheweldisvisible.Beforere-installingthe
beam,liberallygreasetheanchorpinbeforereinsertingintotheloadcellbeam.
22.
Testsafetydoorfeature(ifequipped).Openthetongdoor(s),andattempttorotatethecageplateatlowspeed(low
gear)inbothdirections(makeupandbreakout).Ifcageplatebeginsrotating,thesafetydoormechanismisnotfunc-
tional,andthetongmustberemovedfromserviceuntilthesafetydoormechanismcanberepaired.Ifthesafetydoor
isoperatingcorrectly,cageplaterotationwillnotbeinhibitedoncethedoorisclosedandlatched.