Larzep PH035 Instructions for use

V02.2013
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INSTRUCTIONS&MAINTENANCESHEET
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PORTABLEHYDRAULICPUNCHINGHEAD
PH035
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LARZEP,S.A.
AvenidaUrtiaga,6
48269MALLABIA,SPAIN
Tel.+34943171200
Fax.+34943174166
e‐mail:[email protected]
www.larzep.com

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1. TECHNICALCHARACTERISTICS
Maximumpunchingcapacity:Ι,L,Tsectionsteelplate
Maximumthicknessof10mm
Min/Max.holediameter:ø5/20mm
Max.yieldstrength:37kg/mm²
Punchingforce:250kN
Operatingpressure:700bar
Punchtravelspeed:3.4mm/sec(flowrateof0.55l/min)
Punchtravel:22mm
Dimensions: 340x84x220mm
Indentation:60mm
Weight:15kg
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2. OPERATINGRANGE
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- Ι,L,Tsectionsteelplatewithamaximumthicknessof10mm
- Maximumyieldstrengthofthematerialstobepunched:37kg/mm2
- Recommendedapplications:
ø5to20mmroundholesin10mmsteelplate.
Square,ovalandrectangularholesin10mmsteelplate.
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3. PREPARATIONFORSTART‐UP
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1. Operatingarea
Beforestartingthepunchingprocess,theoperatormustensurethattheareaoccupiedbythebartobe
cutisfreefromobstaclesandthatthereisnothingtoobstructthecopperoraluminiumbarpunching
process.
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2. Ensurethatthehydraulichoseiscorrectlyconnectedtothemachine
Ensurethatthehosequickcouplingiscorrectlyconnectedtothetoolquickcoupling.Thisconnection
mustbesecuredwiththeself‐lockingnutbeforeworkstarts.
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WARNING!
BEFOREUSINGTHETOOL,
CHECKTHATTHEQUICK
COUPLINGHASBEEN
CORRECTLYSECURED
QUICK
SELF‐LOCKING NUT

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4. START‐UP
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Beforeoperatingthetool,pleaseensurethatyouhavereadthegeneralsafetyinstructionsandalsothe
toolset‐upinstructions.
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WARNING!Foranybarpunchingoperation,youmustcompletelyfollowtheproceduredescribedbelow.
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1. Selectthesheetmetaltobepunched.
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2. Insertthesheetmetalinthepunchgap
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3. Activatethehydraulicsystemandstarttopunchtheflatcopperoraluminiumbar.
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- IfusingtheWP01207Footpedaloperatingpump,thepumppedalmustbepresseduntilthecutting
operationhasbeencompleted.Thenthepumpreleaseleverisusedtomakethepunchretract.
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- IfusingtheZ12107Airhydraulicpump,youshouldbearinmindthatthispedalhasthreepositions,each
withadifferentfunction.Tostarttheunit,pressdownwhilstinthe“pressure”positionandthe
punchingoperationisperformed.Thepunchretractswhenthe“Release”positionispressed.Ifnopedal
ispressed,theunitremainsatadeadpoint.Therefore,thepunchadvanceorretractcanbestoppedat
anytimeduringoperation
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- IfusingtheHydraulicelectricpump,thedrivepedalhasthreepositionsandtwodifferentpedals.
Pressingpedalnº1,thepunchadvancestoperformthecuttingoperation.Pressingpedalnº2,the
punchretracts.Ifnopedalispressed,thentheunitremainsatadeadpoint.Therefore,thepunch
advanceorretractcanbestoppedatanytimeduringoperation.
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4. Endofthepunchingprocess.Pressthereleasepedalstocausethepunchtoretract,removethe
punchedbarandfollowtheproceduredescribedabove.
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5. Punchingprocedure
Independentlyofthedrivesystemused,thepedalneedstobepresseduntilthepunchcomesincontact
withthesheetmetal.Then,positionthepunchatthespotwheretheholeistobemade(thepunchhasa
taperedtipforthispurpose,sothatitiseasytoviewtheoperation).Thepunchingoperationcanthenbe
performed.Oncetheholehasbeenpunched,thepressurereleasepedalsonthevariouspumpsare
pressedtoretractthepunchtothehomepositioninordertocontinuepunchingortoremovetheflatbar.
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PUNCHGAP

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5. PUNCHANDDIECHANGE
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WARNING!Beforemountingthepunchanddieandstartingwork,checkthatthepunchanddie
Dimensionsmatch.Ifthisisnotthecase,thetoolcouldbeseriouslydamaged.
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Orderofprocedure:
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1. Whenmountingthepunchanddie:First,mountthepunchandtheninsertthedie.
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2. Whenreplacingthepunchanddie:First,removethedieandthenremovethepunch.
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Procedure
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Loosenthehexagonalslottednut(no.9)andremoveitcompletely.Insertthepunchandsecurefirmlywith
thehexagonalspannersuppliedwiththetool.
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Tomountthedie,loosethediestud(no.3)andinsertthedieintheholderandsecurefirmlywiththestud.
Itisimportantthatyoufirmlytightenthediestudsincethisstudensuresthatthepunchiscentred.
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Toremovethepunchanddie,loosethestud(no.3)securingthedieandremovethedie.
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Loosethehexagonalslottednut(no.9)andremovecompletely,thentakeoutthedie.
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Regularlygreasethepunchanddie
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DIEHOLDER
PUNCH
HEXAGONAL
NUT
DIESTUD
DIE

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6. TROUBLESHOOTING
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Beforecarryingoutanyworkonthetool,ensurethatithasbeendisconnectedfromthedrivesystemand
thatitisnotunderhydraulicpressure.
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WARNING!Ifyoushouldrequireanyadditionalservicesthanthosedetailedbelow,pleaseconsultyour
nearestTechnicalServicecentre.
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1. Punchordiebreakage.
- Incorrectpositionofthesheetmetal.Itdoesnotforma90ºanglewiththepunch.
- Theflatbarisnotsecuredwhenthepistonretracts
- Diepositionedonthewidestsideofthehole
- Thedieandpunchareofdifferentdimensions
- Materialtobepunchedisnotcopperoraluminiumorhasagreateryieldstrengththanthemaximum
strengthindicated(37kg/mm2)
- Flatdie,punchingcurvedsheetmetalandviceversus,curveddiepunchingflatsheetmetal.
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Solution:Replacethepunchanddie.Wewouldrecommendalwaysreplacingbothitemsatthesametime.
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2. Oilloss.
Oilonthepiston.Damagedo‐ringsorpistonscratchedbysomeexternalprojection.
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Solution:SendthetooltothenearestTechnicalServicecentreforrepair.
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3.Thepistondoesnotretracttoitshomeposition
- Pistonretractspringfatiguedordamaged
Solution:replacespring
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- Dirtyordamagedquickcoupling
Solution:replacecoupling
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- Malfunctionofthedrivesystemusedtooperatethetool
Solution:repairdrivesystem
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Inallcases,wewouldadvisesendingthemachinetothenearestTechnicalServicecentreforrepair.
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Ifyouhaveanydoubtsorrequireaclarification,pleasedonothesitatetocontacttheLARZEP,S.A.
TechnicalDepartment.
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Alwaysuseoriginalspares.Anyotherparttypecouldseriouslydamagethetoolandvoidtheguarantee.
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Ifdespitetheabove,thetoolstilldoesnotworkcorrectly,returnittothenearestTechnicalServicefor
repairandfinetuningbyspecialisedpersonnel.
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7. CAREANDMAINTENANCE
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Beforeperforminganyworkonthemachine,disconnectthehydraulichosequickcoupling.
- Hoseandquickcouplings:Both,thehoseandquickcouplingsmustbemaintainedinanoptimum
conditionandshouldbeinspectedregularly.
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- Springcover(Safetycover):Checkthattheretractspringprotectivecoverisperfectlysecuredwith
fixturescrews.Ifanyirregularityisdetected,replaceitimmediately.
Foryoursafety,NEVERoperatethetoolwithoutthespringcoverperfectlysecuredinthecorrect
position.
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- Piston:Itisadvisabletomaintainthethrustpistonwallscleaninordertopreventpossiblescratchesto
thecylindersleevewalls.
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- PunchandDies:Ensurethattheyhavenodeformationsorburrs,ifsoreplaceimmediately.Itis
advisabletogreasethepunchanddieregularly.
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- Cylinderbodydisassembly:Whendisassemblingthehydrauliccircuit,neverinsertsharpobjectssuchas
screwdrivers,tips,…betweenthecylindersleevewalls.Payparticularattentiontoreplacingo‐ringsand
otherplasticitems.Alwaysuseplasticmaterialsforthispurpose.
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- Letaspecialisttakecareofrepairingandmaintainingtheequipment:Allrepairsshouldbeperformed
byaspecialistandonlyoriginalsparesshouldbeused.
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8. WARNINGS
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- Hoseandquickcouplings:Both,thehoseandquickcouplingsmustbeinoptimumworkingorder.
Inspectthehosefordamageandensurethatthequickcouplingsarecleanandfreefromparticles.
Regularinspectionsshouldbecarriedout.
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- Quickcouplings:Wewouldrecommendthatthecouplingsbedisconnectedaslittleaspossiblesince,
althoughminimal,aslightoillosswillinfactoccur.NEVERdisconnectaquickcouplingwhenthereis
pressurestillinthecircuit.Thatis,youmustfirstreleasethepressurefromthecircuitotherwise,apart
fromtheresultingpersonalinjury,thecylinderwilllockandthisisverycomplicatedtocorrect.
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9. RETRACTSPRINGASSEMBLYINSTRUCTIONS.IMPORTANT.
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1. Oncethespringshavebeenmounted,theyneedtobetightenedgradually
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2. Startupthetoolandcheckverycarefullythatwhenthemachinecomestotheendofitstravel,the
springdoesnotbecomecompressedinoneblock,ifthisshouldoccurthespringwouldbeprojected
outwardsandcouldcauseanaccident.
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3. ThisoperationshouldbeperformedbyskilledpersonnelorbytheOfficialTechnicalService.
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7
DECLARATIONOFCONFORMITY
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LARZEP,S.A.
AvenidaUrtiaga,6
48269MALLABIA,SPAIN
Tel.+34943171200
Fax.+34943174166
e‐mail:[email protected]
www.larzep.com
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