Lincoln Electric Cobramatic Operating instructions

7)2%&%%$%2 )-

-+

/CTOBER

/0%2!4/23-!.5!,

Cobramatic

For use with Push-Pull Torches model K1589, K1590, K1591, K1592

For use with code 10841

3AFETY$EPENDSON9OU

,INCOLNARCWELDINGEQUIPMENTIS

DESIGNEDANDBUILTWITHSAFETY

INMIND(OWEVERYOUROVERALL

SAFETYCANBEINCREASEDBYPROPER

INSTALLATIONANDTHOUGHTFULLOPER

ATIONONYOURPART

$/./4).34!,,/0%2!4%

/22%0!)24()3%15)0-%.4

7)4(/542%!$).'4()3

-!.5!,!.$4(%3!&%49

02%#!54)/.3#/.4!).%$

4(2/5'(/54!NDMOST

IMPORTANTLYTHINKBEFOREYOUACT

ANDBECAREFUL

Sales and Service through Subsidiaries and Distributors Worldwide

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

World’s Leader in Welding and Cutting Prodcuts Premier Manufacturer of Industrial Motors

This manual covers equipment which is no

longer in production by The Lincoln Electric Co.

Specications and availability of optional

features may have changed.

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Table of Contents

Saftey Guidelines ............................................................................2

Installation.........................................................................Section A

Technical Speciﬁcations .....................................................................10

Machine Grounding ...........................................................................10

Machine Location ..............................................................................10

Input Power Connections ...................................................................10

Wire Threading Procedure .................................................................11

Welding Torch Connections ................................................................11

Operations..........................................................................Section B

General Description ...........................................................................12

Recommended Processes and Equiment .............................................12

Controls and Settings ........................................................................12

POSA Start Operating Procedure ........................................................12

Accessories.........................................................................Section C

Optional Kits .....................................................................................14

Maintenance.......................................................................Section D

Routine Maintenance.........................................................................14

Testing the Feeder ............................................................................15

Testing the Torch ..............................................................................16

Troubleshooting ................................................................. Section E

Troubleshooting Guide.......................................................................17

Diagrams/Parts List .......................................................... Section F

Main PC Boards.................................................................................19

Mechanical .......................................................................................20

Electrical...........................................................................................27

Warranty Repair Stations

Safety Warnings

Warranty

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Section A Installation

Technical Speciﬁcations

7IRE$IAMETER#APACITY v!,,4YPES

7IRE#APACITY  v3TANDARD

)NSULATEDOR.ON)NSULATED

0OWER)NPUT  6!#(Z

 7ATTS0EAKAMPS

7EIGHTPOUNDS

3HIPPING7EIGHT POUNDS

&OR5SEWITHTHESE,INCOLN4ORCHES +++ 

 +

Support Equipment Required

#6OR##0OWER3OURCEOF3UFlCIENT#APACITYFOR9OUR.EEDS

2EGULATED'AS3UPPLYAND(OSES

0ROPERLY3IZED0OWER,EADSFROM0OWER3OURCETO7IRE&EEDERAND'ROUND

Coolant Recommendations

7ATER3OURCEAND(OSE#APABLEOF0ROVIDINGA-INIMUMOFQTMINAT

PSIWHENUSINGWATERCOOLEDTORCHES

5SEANAMEBRANDADDITIVEWHICHDOESNOTCONTAINREACTIVESULPHUROR

CHLORINEANDDOESNOTREACTWITHCOPPERBRASSORALUMINUM

#HECKCOOLANTPERIODICALLYTOREMAINWITHINLIMITSOFTHEFOLLOWING

 !#OOLANT&LOWRATEQUARTMINUTEATPSI

 "2ESISTIVITY+OHMSCENTIMETER

 #0H2ANGE

 $0ARTICLE3IZEv

-+2ECOMMENDED#OOLANT3OLUTION

 PARTETYLENEGLYCOL

 PARTSDISTILLEDWATER

 TEASPOONLIQUIDGLYCERIN

Machine Grounding

4HE#OBRAMATIC§AND'-!7WIREFEEDERSAREGROUNDTOTHEPOWERSOURCE

THROUGHTHEINPUTCABLE4HEPOWERSOURCEGROUNDINGTERMINALMUSTBE

PROPERLYCONNECTEDTOELECTRICALGROUNDPERTHEPOWERSOURCEOPERATING

MANUAL

Mounting Location

4HECABINETSHOULDBEPLACEDINALOCATIONWHEREITCANBEPROTECTEDFROM

DAMAGE,EADLENGTHSANDACCESSIBILITYMUSTALSOBECONSIDEREDWHEN

INSTALLINGTHECABINET

Input Power Connections

9OUR7IRE&EEDERCOMESFACTORYREADYWITHAHARNESSTOPLUGDIRECTLYINTOALL

PIN,INCOLN0OWER3OURCESEQUIPPEDWITH6!#AUXILIARY

4HE6!#ISCONNECTEDTOTHE0#"OARDONTERMINALSTRIP*NEUTRAL

ANDHOTAND'ROUNDTOTHE#ABINETCHASSIS3EEDIAGRAMINTHE

APPENDIX

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Wire Threading Procedure

Wire Spool Installation

2ELEASELATCHESANDOPENRIGHTSIDEDOOROFCABINET

2EMOVESPOOLRETAINERFROMSPINDLEHUB

2AISEWIRERETAINERBARTOLATCHEDPOSTION

)NSTALLWIRESPOOLONTOSPINDLEHUBSOTHATWIREFEEDSFROMBOTTOMOFSPOOL

TOWARDSSLAVEMOTOR-AKESURETHATTHEHOLEINTHESPOOLALIGNSWITHPIN

ONSPINDLEHUB4HEWHITEDOTONTHEENDOFTHESPINDLEHUBWILLAIDIN

THISALIGNMENT

2EPLACETHESPOOLRETAINERNUT

,OWERTHEWIRERETAINERBARONTOTHESPOOL

Threading Procedure

0LACEWIRESIZESELECTORSWITCHONFRONTPANELTOTHECORRECTPOSITIONFORTHE

WIREBEINGUSED

,OOSENENDOFWIREFROMSPOOLANDCUTOFFANYKINKEDORBENTPORTIONS

5NREELANDSTRAIGHTENOUTlRSTvTOvOFWIRE

2AISEWIRETYPELEVERTOCENTERPOSITION

2OUTEWIREINTOINLETGUIDEALONGDRIVEROLLGROOVEANDINTOWIRECONDUIT

&LIPWIRETYPELEVERTOSHOWTYPEOFWIREBEINGUSED

4IGHTENTHETORCHPRESSUREADJUSTINGKNOBSOTHEWIREWILLBEPICKEDUPAND

FEDTHROUGHTHECONTACTTIP0ROPERTENSIONISACHIEVEDWHENWIREDOESNOT

SLIPIFASMALLAMOUNTOFPRESSUREISADDEDTOTHEWIREASITEXITSTHETIP

Wire Retainer Bar

4HEDESIGNOFTHEPATENTED#OBRAMATIC§7IRE2ETAINER"ARPERFORMSTWO

VERYIMPORTANTANDVERYBASICFUNCTIONSOFTHEWIREFEEDERASPOOLDRAG

TENSIONANDBWIREMAINTENANCEONTHESPOOL

4HESPOOLDRAGTENSIONISSETBYLOWERINGTHEWIRERETAINERBARONTOTHEWIRE

INSIDEOFTHESPOOL4HESPRINGTENSIONOFTHEWIRERETAINERBARAPPLIESENOUGH

PRESSUREONTHESPOOLSOTHATWHENTHETORCHTRIGGERISRELEASEDENGAGINGTHE

BRAKEPALLTHESPOOLDOESNOTOVERRUNKICKINGWIREOFFTHESPOOL

7IREMAINTENANCEONTHESPOOLISPERFORMEDBYTHEAPPLIEDPRESSUREOFTHE

WIRERETAINERBARSPREADACROSSTHECOILEDWIREONTHESPOOL4HEREPLACEABLE

PAD0.OFTHEWIRERETAINERBARISDESIGNEDTOHOLDTHEWIREON

THESPOOLMAINTAININGTHESMOOTHLAYERINGOFTHEWIREANDKEEPINGITFROM

JUMPINGOFFANDPOSSIBLYELECTRICALLYSHORTINGTOTHECABINETCHASSIS

Welding Torch Connections

Work Cable

#ONNECTAWORKLEADOFSUFlCIENTSIZEANDLENGTHSEETABLEBELOWBETWEEN

THEPROPEROUTPUTSTUDONTHEPOWERSOURCEANDTHEWORK"ESURETHE

CONNECTIONTOTHEWORKMAKESTIGHTMETALTOMETALELECTRICALCONTACT0OOR

WORKLEADCONNECTIONSCANRESULTINPOORARCINITIATIONPOORWELDRESULTSAND

ACTIVATIONOFTHEGROUNDLEADPROTECTOR

 7ORK,EAD,ENGTHS

 #URRENT 5PTOFT FT

 $UTY#YCLE M M

 ! MM MM

 ! MM MM

 ! MM MM

 ! MM MM

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Control Cable

4HE0INh7v#LOCKEDCONNECTORSCREWSONTOTHEMATINGRECEPTACLEONTHE

FRONTPANELOFTHEWIREFEEDER4HISPROVIDESALLELECTRICALSIGNALSMOTOR

VOLTAGEPOTENTIOMETERCONTROLTRIGGERTOANDFROMTHEFEEDERTOTHETORCH

Wire Conduit Inlet

&RONTPANELACCESSTOATTACHCONDUITTOFRONTOFSLAVEMOTORASSEMBLY

Power Cable Inlet

&RONTPANELACCESSTOATTACHPOWERCABLEAIRORWATERTOTOPOFPOWERBLOCK

Gas Inlet

&RONTPANELACCESSTOATTACHGASHOSETOBOTTOMlTTINGOFPOWERBLOCK

Water Inlet (For Water Cooled Torches)

&RONTPANELACCESSTOCONNECTTHEWATERHOSETOTHEMIDDLElTTINGONTHE

POWERBLOCK

Section B Operation

General

4HE!#SLAVEMOTORINTHEFEEDERRUNSATAFASTCONSTANTSPEEDBUTHASVERY

LOWTORQUE)TISALWAYSTRYINGTOFEEDMOREWIRETHANTHETORCHMOTORWANTS

ANDWHENTHEMOTORGETSALLITWANTSITSLOWSTHESLAVEMOTORPREVENTINGA

BIRDSNEST"ECAUSEOFTHELOWTORQUEPRODUCEDBYTHESLAVEMOTORABRAKE

SYSTEMISUSEDTOPREVENTWIREOVERRUNRATHERTHANTENSION4HESPOOLDRAG

TENSIONISPRODUCEDBYTHEPATENTED7IRE2ETAINER"ARMECHANISMTOKEEP

THEWIRESLIGHTLYTAUT4HE6$#TORCHPULLMOTORISCONTROLLEDBYASOLID

STATESPEEDCONTROLANDAPOTENTIOMETERLOCATEDINTHETORCH

Recommended Processes and Equipment

4HE#OBRAMATIC§ISRECOMMENDEDFORUSEINTHE'-!7AND&#!7WELDING

APPLICATIONS)TISRECOMMENDEDFORUSEWITHCONSTANTVOLTAGEPOWERSOURCES

4HE#OBRAMATIC§ISCAPABLEOFFEEDINGWIRESDIAMETERCAPACITYRANGING

FROMvTHROUGHvSOLIDCOREDANDvTHROUGHvALUMINUM

Controls and Settings

On/Off Switch

0LACINGTHESWITCHINTHEh/.vPOSITIONENERGIZESTHEFEEDERCIRCUITRYANDTHE

POWERINDICATORLIGHT

Wire Size Selector Switch

4HEWIRESIZESELECTORSWITCHCHANGESTHETORQUEOFTHESLAVEMOTORFORTHE

WIREYOUAREUSING7HENINTHEALUMINUMONLYPOSITIONTHESLAVE

MOTORPRODUCESAPPROXIMATELYLBSINCHESANDAPPROXIMATELYLBS

INCHESWHENINTHEALLOTHERWIRESPOSITION

./4%

/PERATINGTHECABINETWITHTHESWITCHINTHEWRONG

POSITIONWILLCAUSEWIREFEEDDIFlCULTIES

Posa Start Controls

4HE0OSA3TART2UNIN3PEED#ONTROLLOCATEDONTHEFRONTPANELPROVIDES

ADJUSTMENTFORSLOWWIRERUNIN/NCETHEARCHASBEENESTABLISHEDTHE

WIREFEEDSPEEDISAUTOMATICALLYCHANGEDFROMTHESLOWRUNINSPEEDTOTHE

WELDINGSPEEDSETONTHETORCHPOTENTIOMETER

Posa Start Operating Procedure

General

4HE0OSA3TART2UNIN3PEED#ONTROLLOCATEDONTHEFRONTPANELPROVIDES

#OBRAMATIC

/WNERS-ANUALPAGE

ADJUSTMENTFORSLOWWIRERUNIN/NCETHEARCHASBEENESTABLISHEDTHE

WIREFEEDSPEEDISAUTOMATICALLYCHANGEDFROMTHESLOWRUNINSPEEDTOTHE

WELDINGSPEEDSETONTHETORCHPOTENTIOMETER

4HE0OSA3TARTFEATUREALLOWSTHE#OBRAMATIC§TOBEUSEDINCOMBINATION

WITHCONSTANTCURRENT$#WELDINGPOWERSOURCESOFOPENCIRCUITVOLTAGEIN

EXCESSOFVOLTSALSOANYCONSTANTVOLTAGEWELDINGPOWERSOURCECAPABLE

OFAMINIMUMOFAMPS

.OTE

2EVERSEPOLARITY-534BEUSED

Posa Start Connections

!TTACHTHESINGLEBLACKLEADWHICHEXTENDSFROMTHEBACKOFTHECABINET

TOTHENEGATIVETERMINALOFTHEPOWERSUPPLYORWORKGROUNDUNLESSALREADY

ATTACHEDTHROUGHAPINAMPHENOLSUPPLIESWITHTHECABINET4HE0OSA

3TARTLEADISINTERNALLYCONNECTEDTOTHE0#BOARDONTERMINALSTRIP*

TERMINAL

CV Posa Start Operations

!TTACH#OBRAMATIC§TO#6POWERSOURCEACCORDINGTOTHEINSTALLATIONINSTRUC

TIONS

4URNTHE#OBRAMATIC§TOTHEh/.vPOSITIONANDTHE0OSA3TARTTOTHEh/&&v

POSITION

!DJUSTPOWERSOURCETODESIREDVOLTAGEFORYOURWELDCONDITION

$EPRESSGUNTRIGGERANDADJUSTWIREFEEDSPEEDATGUNTOMATCHVOLTAGE

SETTING)FAPPROXIMATEWIREFEEDISNOTKNOWNITISBETTERTOSTARTWITHEXCESS

WIREFEEDRATHERTHANTOOLITTLEINORDERTOPREVENTAhBURNBACKv

4URNTHE0OSA3TARTSWITCHTOTHEh/.vPOSITION0RESSTORCHTRIGGERAND

USING2UNIN3PEED#ONTROLADJUSTWIREFEEDRATETOAPPROXIMATELYOF

WELDINGWIRESPEEDSETATTORCH

3TRIKEANARCANDADJUSTWIREFEEDRATEATGUNUNTILCORRECTCONDITIONIS

ACHIEVED

CC Posa Start Operation

!TTACHTHE#OBRAMATIC§TOA##POWERSOURCEACCORDINGTOTHEINSTALLATION

INSTRUCTIONS

)NSUREPOWERSUPPLYHIGHFREQUENCYSWITCHISINTHEh/&&vPOSITIONAND

POWERSUPPLYISSETTO$#REVERSEPOLARITY

4HEPOWERSUPPLYCONTACTORSHOULDBESETTOh2EMOTEvORh4IGvANDTHE

AMPERAGECONTROLSETTOh0ANELvORh3TANDARDvDEPENDINGONPOWERSUPPLY

4URNTHE#OBRAMATIC§POWERSWITCHTOTHEh/.vPOSITIONANDTHE0OSA3TART

SWITCHTOTHEh/&&vPOSITION

!DJUSTPOWERSOURCETODESIREDAMPERAGEFORYOURWELDCONDITION

0RESSGUNTRIGGERANDADJUSTWIREFEEDSPEEDATGUNTOMATCHCURRENTSETTING

)FAPPROXIMATEWIREFEEDSPEEDISNOTKNOWNITISBETTERTOSTARTWITHEXCESS

WIREFEEDRATHERTHANTOOLITTLEINORDERTOPREVENTPOSSIBLEDAMAGETOTHE

CONTACTTIP

4URN0OSA3TARTSWITCHTOTHEh/.vPOSITION0RESSTORCHTRIGGERANDUSING

2UNIN3PEED#ONTROLADJUSTWIREFEEDSPEEDTOAPPROXIMATELYOFWELD

INGWIRESPEEDSETATTORCH

3TRIKEANARCIFTHEWIRESTUBSOUTREDUCEWIREFEEDRATEATGUNORINCREASE

AMPERAGESETTINGONPOWERSOURCE

#OBRAMATIC

/WNERS-ANUALPAGE

./4%

"ECAUSETHE0OSA3TART2UNIN3PEEDALWAYSREMAINSAPERCENTAGE

OFTHEACTUALWELDINGWIREFEEDRATETHE0OSA3TARTRUNINSPEED

WILLALWAYSSLOWDOWNORSPEEDUPPROPORTIONALTOANY

ADJUSTMENTYOUNOWMAKEATTHEGUN4HEREFOREIFYOUSLOWDOWN

THEWELDINGWIREFEEDSPEEDYOUWILLHAVETOINCREASE

THE2UNIN3PEEDSETTING

Section C OPTIONAL KITS

4HEFOLLOWINGISALISTOF/PTIONAL+ITSAVAILABLEFORTHE#OBRA§67IRE&EEDER

!DETAILEDDESCRIPTIONOFEACHKITISGIVENLATERINTHISSECTION

0.

 $ESCRIPTION

 'AS0URGE4RIGGER,ATCH+IT

 7ATER0RESSURE+IT

005-0674 Gas Purge/Trigger Latch Kit

4HE'AS0URGE4RIGGER,ATCH+ITISADUALFUNCTIONKITBUILTINTOONE4HEKIT

INCLUDESANEASYTOINSTALLINTERFACECONTROL0#BOARDA6!#SOLENOIDFOR

PREANDPOSTPURGECONTROLAMODIlEDVALVESTEMFORTHEWELDINGTORCHANDA

FRONTPANELSWITCHFORACTIVATINGTHE4RIGGER,ATCHMECHANISM

4HEGASCONTROLTIMESHAVEBEENPRESETTOSECONDSPREPURGEAND

SECONDSPOSTPURGE4HISOFFERSANOPTIMUMAMOUNTOFINERTGASSHIELDING

PRIORTOSTRIKINGTHEARCANDAFTERTHEARCHASBEENEXTINGUISHED

4HE4RIGGER,ATCHMECHANISMGIVESTHEOPERATORTHEmEXIBILITYOFNORMAL

TRIGGEROPERATIONPULLTRIGGERTOWELDRELEASETRIGGERTOSTOP4HISALSO

OFFERSTHECOMFORTOFLATCHEDTRIGGEROPERATIONPULLTRIGGERONCETOLATCHAND

WELDPULLTRIGGERAGAINTOUNLATCHANDSTOP

005-0675 Water Pressure Kit

"YMONITORINGTHEPRESSUREFROMTHEWATERRECIRCULATORTHESWITCHUSESTHE

PRESSUREASTHEKEYSAFETYELEMENTINPROTECTINGTHETORCHFROMOVERHEATING

WHILEWELDING)FTHEREISALOSSOFWATERPRESSURETHESWITCHWILLKEEPTHE

ARCFROMIGNITINGSONOWELDINGTAKESPLACEWITHOUTWATERCOOLINGTHETORCH

4HEBENElTOFTHEWATERPRESSURESWITCHFAREXCEEDSTHEMINIMALCOSTOFITS

PURCHASEANDINSTALLATION

4HISKITWHENINSTALLEDINTOTHEWIREFEEDERISPHYSICALLYADAPTABLETOALL

MAKESANDSMODELSOFWATERRECIRCULATORSUSINGSTANDARDlTTINGSLEFTHAND

THREADED

Section D Maintenance

Routine Maintenance

-AINTENANCEOFTHETORCHWILLNORMALLYCONSISTOFAGENERALCLEANINGOF

THEWIREGUIDESYSTEMINCLUDINGTUBESDRIVEROLLSANDCONDUITSATREGULAR

INTERVALS



            

           

    

       

     

#OBRAMATIC

/WNERS-ANUALPAGE

2EMOVESPATTERBUILDUPFROMINSIDEOFNOZZLESWITHAHARDWOODSTICK

4HEONLYPARTSONTHE#OBRAMATIC§SYSTEMTHATARESUBJECTTONORMALWEAR

ARETHECONDUITCONTACTTIPSGASCUPSFRONTBODYLINERSWIREGUIDESDRIVE

ANDIDLERROLLS!SUPPLYOFTHESEPARTSSHOULDBEMAINTAINEDONHAND

)FREPAIRSDOBECOMENECESSARYANYPARTCANEASILYBEREPLACEDBYAQUALI

lEDSHOPMAINTENANCEMAN

9OUR#OBRAMATIC§ISDESIGNEDTOPROVIDEYEARSOFRELIABLESERVICE.ORMAL

WEARANDCOMPONENTFAILUREMAYREQUIREOCCASIONALSERVICE

4HENUMBEROFUNITSINOPERATIONANDTHEIMPORTANCEOFMINIMALhDOWNTIMEv

WILLDETERMINETOWHATEXTENTSPAREPARTSSHOULDBESTOCKEDONHAND

Testing the Feeder

Relay K2 Operation

7HENTHETORCHTRIGGERISPRESSED6!#ISSENTTOTHECOILOFRELAY+

7HEN+ISENERGIZED!#ISSENTTOTHESLAVEMOTORSPOOLBRAKEANDTHE

!#CONTACTOR2ELAY+ISALSORESPONSIBLEFORSENDING6!#TOTHESPEED

CONTROLCIRCUITANDSHORTINGTHETORCHMOTORLEADSTOGETHERWHENTHETRIGGER

ISRELEASEDFORTHEDYNAMICBRAKINGSYSTEM+ALSOPROVIDESTHECLOSING

CONTACTORSIGNAL

Testing the Input Power Circuits

4HE!#CIRCUITSAREPROTECTEDBYFUSES&AND&)F&AND&CONTINUALLY

BLOWREMOVE*"RAKE3OLENOID*SLAVEMOTORAND*!##ONTAC

TORFROMTHE0#"OARD2EPLACEFUSEANDRETRIGGERSYSTEM)FFUSEDOES

NOTBLOWISOLATETHEPROBLEMBYPLUGGINGIN**AND*ONEATATIME

UNTILTHEFUSEBLOWS

Testing the Speed Control

./4%

4HETORCHSHOULDBETESTEDlRSTANDTHEAMPHENOLMUSTBECONNECTEDTOTHE

#OBRAMATIC§TOPERFORMTHISTEST

0LACEAVOLTMETERACROSSDIODE$ANDPRESSTORCHTRIGGER!READINGOF

6$#SHOULDBEOBSERVEDASTHETORCHPOTENTIOMETERVARIED



6$#





$

#OBRAMATIC

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Testing the Torch

Motor Check

2EMOVETHEAMPHENOLCONNECTORFROMTHECABINET

5SINGTHETORCHAMPHENOLCHECKTHERESISTANCEACROSSPINSh!vAND

h"vMOTORLEADS4HERESISTANCEACROSSTHEMOTORSHOULDBEBETWEEN

OHMS

)FANOPENCIRCUITORSHORTEXISTCHECKTHEMOTORLEADSANDMOTORINDEPEN

DENTLY

Testing the Potentiometer - “W” Clocked

5SINGTHETORCHAMPHENOLCHECKTHERESISTANCEACROSSPINh$vWIPERAND

PINh#v4HERESISTANCESHOULDVARYFROM+OHMS

#HECKTHERESISTANCEACROSSPINh$vWIPERANDPINh'v4HERESISTANCE

SHOULDVARYFROM+OHMS

Testing the Micro Switch

5SINGTHETORCHAMPHENOLCHECKFORCONTINUITYACROSSPINSh%vANDh&vWHEN

THETRIGGERISPRESSED

#OBRAMATIC

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Section E Troubleshooting

'.)4//(3%,"5/24'.)4//(3%,"5/24

'.)4//(3%,"5/24

'.)4//(3%,"5/24'.)4//(3%,"5/24

-/40-93-/40-93

-/40-93

-/40-93-/40-93

%35!#%35!#

%35!#

%35!#%35!#9$%-%29$%-%2

9$%-%2

9$%-%29$%-%2

REDEEFHCROTTADEEF

ERIWO.

EVALSONEIGNITAREPOTON

DIONELOSEKARBROROTOM

WOL"WOL3!!$-&&

NWOLBREDEEFNIESUF

ESUFECALP

E2TIUCRIC#!KCEH#REDEEFHCROTTADEEFERIWO.

EVALSONEIGNITAREPOTON

DIONELOSEKARBROROTOM

NWOLBREDEEFNI

ESUFPMA&STROHSROFSDAELROTOMKCEH#

ESUFECALPERNEHT

REDEEFHCROTTADEEFERIWO.

EVALSONEIGNITAREPOTON

DIONELOSEKARBROROTOM

GNIEBTONEVITCEFEDHCTIWSORCI-

LACIRTCELENEKOR"DETAVITCA

ELBAC

ROFHCTIWSKCEH#HCT

IWSECALPE2

HCTIWSORCIMKCEH#NOITAREPO

YTIUNITNOCROFSERIW

REDEEFHCROTTADEEFERIWO.

EVALSONEIGNITAREPO

TON

DIONELOSEKARBROROTOM

EVITAREPONI+YALE2+YALERECALPE2KCEH#

REDEEFHCROTTADEEFERIWO.

EVALSONEIGNITAREPOTON

DIONELOSEKARBROROTOM

DRAOB#0**ESOO,

ROTCENNOC

SROTCENNOC**KCEH#

EVITAREPONIDIONELO

SEKAR"EVITCEFEDDIONELO3DIONELOSECALPE2EVITAREPONIDIONELOSEKAR"

EVITAREPONI+YALE2*SSORCA#!6ROFKC

EH#

*DNA

REDEEFHCROTTADEEFERIWO.

YLREPORPGNITAREPO

RETEMOITNETOPDA"RETEMHTIWRETEMOITNETOPKCEH#REDEE

FHCROTTADEEFERIWO.

YLREPORPGNITAREPO

ROTOMHCROTDA"ROTOMECALPE2KCEH#

REDEEFHCROTTADEEFERIWO.

YLREPOR

PGNITAREPO

ELBACLACIRTCELENEKOR"RETEMOITNETOPDNAROTOMKCEH#

YTIUNITNOCROFSERIW

REDEEFHCROTTADEEFERIWO.



YLREPORPGNITAREPO

"#0LORTNOCDEEPSDA"DRAO"#0ECALPE2KCEH#

ERIWGNIDLEWTUBSDEEFERI7

DEZIGRENETONSI

SN

OITCENNOCELBACONROESOO,SNOITCENNOCREWOPLLAKCEH#ERIWGNIDLEWTUBSDEEFERI7

DEZIGRENETONSI

ROTCATNOCGNIDNE

STON+YALE2

LANGIS

+YALERECALPE2KCEH#

ERIWGNIDLEWTUBSDEEFERI7

DEZIGRENETONSI

ROESOOLELBACLORTNOCROTC

ATNO#

NOITISOPGNORWNI

SRENWOYLPPUSREWOPKCEH#

FOEPYTDNANOITACOLROFLAUNAM

EIDERIUQERLANGISROTCATNOC

#!R

OSTCATNOCGNISOLC

ERIWGNIDLEWTUBSDEEFERI7

DEZIGRENETONSI

TONECRUOSREWOPGNIDLE7

THGIRGNIKROW

REPORPROFYLP

PUSREWOPKCEH#

NOITAREPO

YLLACITARRESDEEFERI7TIUDNOCNROWROYTRI$TIUDNOCECALPERROTUOWOL"YLLACITARRESDEE

FERI7

SLLOREVIRDNOERUSSERPTCERROCN)HCROTTAERUSSERPTSUJD!

YLLACITARRESDEEFERI7

HCROTNIKCUTSLLORRELD)REL

DIREDNUREHSAWKCOLROFKCEH#

RODEGAMADFIECALPERROLLOR

NROW

YLLACITARRESDEEFERI7

PITTCATNOCEZISGNOR7ELBAT

PITTCATNOCEE3

YLNODEEPSENOSDEEFERI7RETEMOITNETOPDA"RETEMHTIWKCEH#YLNODEEPSENOSDEEFERI7

DAELNIELBACLACIR

TCELENEKOR"

YSSA

ROFSERIWRETEMOITNETOPKCEH#

STROHSROYTIUNITNOC

YLNODEEPSENOSDEEFERI7

LORTNOCDEEPSDA"DRA

O"#0ECALPE2KCEH#

SLLOREVIRDFOTUOSKLAWERI7NWODEDISPULLORRELD)SDRAWOTLLORRELDINIEVOORGECAL0

POT

SLLORE

VIRDFOTUOSKLAWERI7

GNISSIMEDIUGERIWRAE2EDIUGERIWECALPE2

#OBRAMATIC

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Section F Appendices

Diagrams/Parts List

Main P.C. Board Connections..............................................19

001-4012 Cobramatic Assembly..........................................20

003-2112 Cobramatic Front Panel Assembly ........................22

003-2068 Cobramatic Slave Motor Assembly .......................23

003-2063 Cobramatic Power Block Assembly.......................24

003-2061 Cobramatic Spindle Brake Assembly.....................25

843-0496 Cobramatic Control Cable....................................26

071-0386 Cobramatic Block Diagram ..................................27

071-0270 Cobramatic Main P.C. Board ................................28

071-0367 Cobramatic Torch Connections ............................29

003-1721 Main P.C. Board Parts Placement .........................30

003-2001 Front Panel Circuit Board ....................................32

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Main P.C. Board Connections

J14

J13

&2/.40!.%,

"2!+%3/,%./)$

J5J6

3,!6%-/4/2

42!.3&/2-%2

)NPUT0OWER6!#

#HASIS'ROUND

#LOSING#ONTACTS/UT

7ELD#ONNECTION2EF

#ONTROL

#ABLE

,%0.,

-+0.

#OBRAMATIC

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001-4012 Cobramatic Assembly

Lincoln Electric Cobramatic Operating instructions

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