flow chart - MK Products

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11FLOW CHART11SYMPTOMCONTACTOR CLOSED, WIRE ALWAYS ENERGIZEDPROBLEM AREAPOWER SUPPLY CONTROL BOARD, K2 RELAY MAIN BOARD, TRIACSTARTYESIS PSCB LED D7 ON?NOJUMP TP1 TO TP5NOIS PSCB LED D12 ON?YESNOIS PSCB FUSE F1 OK?YESPSCB IS DEFECTIVEREMOVE JUMPERFROM TP1:TP5DISCONNECT J6 ON PSCBPSCB IS DEFECTIVETRANSFORMERRELAY ISDEFECTIVE OR NOAC INPUT, CHECKDISCONNECT FUSEYESCONTACTOR STILL CLOSED?NOYESIS THE WELDINGVOLTAGECONTROLLABLE?NOUSING OHMMETER,CHECK FORCONTINUITY ACROSSJ6-3 AND J6-4 ONMAIN PC BOARDPSCB IS DEFECTIVEDISCONNECT J5ON THE PSCBNOCLOSED SIGNALYESYESIS THE WELDINGWIRE STILLENERGIZED?PSCB IS DEFECTIVENORESEAT K2 RELAYREPLACE IFNECESSARYREPLACE TRIACPSCB IS DEFECTIVECobraMig 260 Owner's Manual - Page 30
Section FAppendicesDiagrams/Parts ListMain P.C. Board Connections ..............................................32001-3850 Top Level ...........................................................33003-2134 Power Supply Assembly ......................................34003-1586 Multi-Tap Bracket Assembly .................................35003-1584 Logic Transformer Assembly ................................36003-2131 Wire Feeder Assembly ........................................37003-2135 Front Panel Assembly .........................................38003-2130 Back Panel Assembly ..........................................39003-2132 Deck Assembly ...................................................40003-1774 Heat Sink Assembly ............................................41003-1714 Cap Bank Assembly ............................................42003-1703 Control Panel Assembly .......................................43003-2063 Cobramatic Power Block Assembly .......................44003-2109 42 VAC Front Panel Assembly ..............................45003-2061 Cobramatic Spindle Brake Assembly .....................46003-2078 Slave Motor Assembly .........................................47071-0321 Universal Input ...................................................48071-0390 Universal Input with Options ...............................50071-0370 Front Panel ........................................................51071-0714 Power Supply Control Board ................................52CobraMig 260 Owner's Manual - Page 31
Page 2 and 3: SAFETY CONSIDERATIONSELECTRIC ARC W
Page 4: momentarily with unprotected eyes (
Page 7 and 8: Section AInstallationTechnical Spec
Page 9 and 10: Route input cable through strain re
Page 11 and 12: Coolant Connection (Water Cooled To
Page 13 and 14: WELD VOLTAGEThe weld voltage knob a
Page 15 and 16: PROCESS SETTINGSThe following table
Page 17 and 18: should bisect the 90 degree angle m
Page 23 and 24: Testing the FeederRelay K2 Operatio
Page 25 and 26: CobraMig 260 Owner's Manual - Page
Page 27 and 28: 2 FLOW CHART 2SYMPTOMF3 FUSE ON COB
Page 29 and 30: 4 FLOW CHART 4SYMPTOMCOBRA MAIN BOA
Page 31 and 32: 6 FLOW CHART 6SYMPTOMWIRE FEEDS AT
Page 33 and 34: 8 FLOW CHART 8SYMPTOMDISCONNECT FUS
Page 35: 10 FLOW CHART 10SYMPTOMNO WELD OUTP
Page 39 and 40: Multi-Tap CV 260001-3850No. Qty. P/
Page 41 and 42: Multi-Tap Bracket Assembly003-1586N
Page 43 and 44: Wire Feeder Assembly003-2131No. Qty
Page 45 and 46: Back Panel Assembly003-2130No. Qty.
Page 47 and 48: Heat Sink Assembly003-1774CNo. Qty.
Page 49 and 50: Control Panel Assembly003-1703No. Q
Page 51 and 52: 42 VAC Front Panel Assembly003-2110
Page 53 and 54: Slave Motor Assembly003-2078No. Qty
Page 55 and 56: CobraMig 260 Owner's Manual - Page
Page 57 and 58: J1910P10J29101112131415161718192021
Page 61 and 62: LIMITED WARRANTYEffective March 1,

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