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Trang 123.SUMMARY FOR NIBBLER& BREAKERS
1.1GENERAL PRECAUTIONS
(1)ApplicationsofBreakerorNibbler&
Breaker
Breakerplplng……Applicableonlywhena
breakeris mounted.
Nibbler&breaker…Applicableonlywhena
plping nibblerandabreakerare
mounted
(2)Modify血gaBfeakerand
Breaker
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There are specific procedures to be
fol-10Wed when modifying a breaker and a
nibbler&breaker.Therefore,Whenthey
are to be modified at our service shop,
manufacturer'soffice,andobta血instruc-tions,SO that youinstallthe plpeS and
handlethemachinerycorrectly
(3)DifferencesbetweenaBreakerPipingand
aNibbler&BreakerPipmg
●BreakerPiplng
ThereisaslngleoilflowfrompumpP2
to the breaker.The oilreturns to the
hydraulictankdirectly.Theflowiss山一
gleflow
A
lfthereturnoilfromthebreakerisfedback
to the controIvalve′the p山sation of the
breakeristransmittedtotheoilcooler.This
causes themachineto breakdown
●NibblerPiplng
The oilrlows to the nibbleris conf11ux
土10W;theoil圭一10Wis changedto therod
andtheheadofthenibblercylinder
1.2BASIC METHOD TO BE TAKEN WHEN
MOUNTING
Whenmountlngthebreakerornibbler,al-Wa)7SeXeCutethefollowlngSeVenitems:
(1)Installanoptionvalvetothemaincontrol
vallre,tO uSe thepressure oilfrom pump
Plforthebreakerandnibbler
(2)Functionoftheoptionvalve:
The option valveis equlpped with spooI which functions to send the pressure oil into nibbler and breaker,and also to
switchtheflowdirectiontotherodsideor headsideofthenibblercylinder
(3)Actionofthesingle/confluxflowspool:
The single/conflux flow select switchis providedon theinstrument panelandis connected to the harness to actuate the
single/confluxflowselectspool.
(4)Instal血gtheoperationpanel:
Apedalandapilotvalvearemountedto thefloorplateandaremote
andpedal,inordertooperatethebreaker orthenibbler
(5)Installingtheselectorvalve:
For the machines equlpped with nibbler and breaker,the selector valve which functionsto changetheoilflowdirection
accordingtotheuseofbreakerornibbler
isprovidedonthemainC/V.
(6)Reinforcementoftheattachment:
Reinforcement plates are welded to the
standardarm(civilengineeringservices: forgeneraluse)andtotheidlerlinks of thenibbler&breakerattached machine.
(7)Whenthemachineequippedwithbreaker
Ornibbler&breakeris modified,replace
breakerand nibbler&breaker.