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Lincoln Electric Cobramatic Operator'S Manual Download Page 16

K1587-1 Cobramatic® Owner's Manual  -

Page 16

MAIN P.C. BOARD CONNECTIONS

J1

J8

TRANSFORMER

J7

SLAVE MOTOR

CURRENT SENSOR
       (Posa Start)

Input Power - 42VAC

Input  Power - 42VAC

Chasis Ground

Closing Contacts Out

Closing Contacts Out

Weld Connection Ref (-)

Not Used

J5

J6

J13

Note: For Cabinet -
Remote Pot Kit, Remove
Jumper from J13-J14. Plug
Remote Pot Kit  into J14.

J14

Control

Cable

 LE P/N L10708-1

MK P/N 843-0496

1

1

2

2

3

3

4

4

J2

FRONT PANEL

J3

FRONT PANEL

BRAKE SOLENOID

J4

Summary of Contents for Cobramatic

Page 1: ...overall safety can be increased by proper installation andthoughfuloperation on your part DO NOT INSTALL OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAIN...

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Page 7: ...K1587 1 Cobramatic Owner s Manual Page 7 THIS PAGE INTENTIONALLY BLANK...

Page 8: ...ral 12 7 2 Feeder Controls 12 7 3 CV CC Posa Start Operating Procedure 13 Section 8 MAINTENANCE 14 8 1 Testing the Torch 14 8 2 Relay K2 Operation 15 8 3 Testing the Input Power Circuits 15 8 4 Testin...

Page 9: ...K1587 1 Cobramatic Owner s Manual Page 9 THIS PAGE INTENTIONALLY BLANK...

Page 10: ...1 qt min at 45 p s i when using water cooled torches Section 3 COOLANT RECOMMENDATIONS 1 Use a name brand additive which does not contain reactive sulphur or chlorine and does not react with copper br...

Page 11: ...PROCEDURE 6 1 WIRE SPOOL INSTALLATION Release latches and open right side door of cabinet Remove spool retainer from spindle hub Install wire spool onto spindle hub so that wire feeds from bottom of s...

Page 12: ...d could subsequently jump off the back of the spool and become lodged in the brake mechanism or jump off the front of the spool and electrically short out to the cabinet chassis The wire guard will ke...

Page 13: ...lso any constant voltage welding power source capable of a minimum of 50 amps NOTE Reverse polarity MUST be used CAUTION DO NOT OPERATE A COBRAMATIC ON A POWER SOURCE HAVING A HIGH FREQUENCY STARTING...

Page 14: ...ng wire feed rate the Posa Start run in speed will always slow down or speed up proportional to any adjustment you now make at the gun Therefore if you slow down the welding wire feed speed you will h...

Page 15: ...24VAC to the speed control circuit and shorting the torch motor leads together when the trigger is released for the dynamic braking system K2 also provides the closing contactor signal 8 3 TESTING TH...

Page 16: ...put Power 42VAC Input Power 42VAC Chasis Ground Closing Contacts Out Closing Contacts Out Weld Connection Ref Not Used J5 J6 J13 Note For Cabinet Remote Pot Kit Remove Jumper from J13 J14 Plug Remote...

Page 17: ...d speed control PCB Check Replace P C Board Wire feeds but welding wire is not energized Loose or no cable connections Check all power connections Relay K2 not sending contactor signal Check Replace r...

Page 18: ...K1587 1 Cobramatic Owner s Manual Page 18 Exploded View K1587 1 Wire Feed Cabinet...

Page 19: ...g Extension 26 1 003 2095 Brake Solenoid 42V Assy 27 1 003 1723 Transformer 42V Assy 28 16 336 0005 Screw PH Fil 6 32 x 3 8 LG 29 5 331 0002 Washer Flat 6 30 4 345 0008 Nut Self Locking 6 32 31 1 405...

Page 20: ...K1587 1 Cobramatic Owner s Manual Page 20 Exploded View MK P N 003 2016 Front Panel...

Page 21: ...i R p u k c a B 5 3 9 5 0 0 9 1 4 g n i r p S n o i s s e r p m o C 6 3 3 6 0 0 1 3 3 t a l F r e h s a W 7 3 3 6 0 3 0 3 3 d o M 8 5 x 4 1 r c S r e d l u o h S 8 1 0 8 1 0 7 3 4 d e i f i d o M r e...

Page 22: ...53 0062 Guide wire 1 2 dia 20 1 REF S23980 1 Guide wire 1 2 dia 19 1 REF 003 0176 Knob sub assy 18 1 REF 753 0062 Guide wire outlet 5 8 dia 18 1 REF S23980 2 Guide wire outlet 5 8 dia 17 2 REF 321 006...

Page 23: ...binet Terminal 42 VAC input White I J5 1 42 VAC input Black K J5 2 Posa Start ref gnd Blue H J6 2 Contactor Red C J6 3 Contactor Orange D J6 4 Ground Green B Chassis Plug for Lincoln Power Source Wire...

Page 24: ...K1587 1 Cobramatic Owner s Manual Page 24 COMPONENTS TO BE REPLACED BY QUALIFIED SERVICE PERSONNEL ONLY MAIN P C BOARD PARTS PLACEMENT...

Page 25: ...0 volts 2N5655 Q3 122 0004 TRANSISTOR PNP 1 amp 50 volts 2N4249 Q4 122 0013 TRANSISTOR unijunction 30 volts 2N2646 Q5 125 0028 THYRISTOR 8 amps 400 volts MCR218 6 C1 C5 C8 C9 101 0016 CAPACITOR cerami...

Page 26: ...62 RESISTOR wire wound 30 ohm 8 watt R2 119 0020 POTENTIOMETER 100K ohm R3 115 0037 RESISTOR carbon 2 7K ohm 1 2 watt D1 124 0045 LED green SW1 159 3587 SWITCH DPDT p c mount SW2 159 3586 SWITCH SPDT...

Page 27: ...K1587 1 Cobramatic Owner s Manual Page 27 COBRAMATIC WIRING SCHEMATIC...

Page 28: ...K1587 1 Cobramatic Owner s Manual Page 28 COBRAMATIC TORCH CONNECTIONS...

Page 29: ...K1587 1 Cobramatic Owner s Manual Page 29 COBRAMATIC BLOCK DIAGRAM 071 0368...

Page 30: ...arson CA SO CAL AIRGAS Gardena CA 310 523 9355 COLORADO INDUSTRIAL GAS PROD SUPPLY Colorado Springs CO 719 473 1947 WELDERS EQUIP SVC TESTING Littleton CO 303 932 8755 WESTERN SLOPE WELDER REPAIR Gran...

Page 31: ...Hutchinson KS 316 665 5551 KENTUCKY GENERAL WELDING PRODUCTS Louisville KY 502 635 5218 LOUISIANA GREENE WELDING SUPPLY West Monroe LA 318 340 9206 RED BALL OXYGEN CO Shreveport LA 318 425 3211 MICHI...

Page 32: ...PLY INC dba OKLAHOMA WELDERS SUPPLY Madill OK 580 795 5561 PENNSYLVANIA GEOVIC WELDING SUPPLY Milton PA 717 742 9377 J A CUNNINGHAM EQUIPMENT INC Philadelphia PA 215 426 6650 VALLEY NATIONAL GASES Pit...

Page 33: ...OR REPAIR Garson Ontario 705 525 2141 INDUSTRIAL ELECTRONIC SERVICES Calgary Alberta 403 279 3432 M R T REPAIR CENTER INC Montreal Qu bec 514 648 0800 OZARK ELECTRICAL MARINE LTD St John s Newfoundlan...

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Page 36: ...K1587 1 Cobramatic Owner s Manual Page 36 THIS PAGE INTENTIONALLY BLANK...

Page 37: ...event of failure resulting from a defect within the following periods from the date of delivery of equipment to the original user 1 Torches and Weldheads 1 year 2 All Other Equipment 3 years 3 Repair...

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