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WIRE FEEDER IM597
MK 091-0414
November 1999
Rev i
OPERATOR'S MANUAL
®
Cobramatic
For use with Push-Pull Torches Model K1589, K1590, K1591, K1592
Safety Depends on You
Lincoln arc welding equipment is
designed and built with safety in
mind. However, your overall safety
can be increased by proper
installation...and thoughful operation
on your part. DO NOT INSTALL,
OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT READING
THIS MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly,
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THIS PAGE INTENTIONALLY BLANK K1587-1 Cobramatic® Owner's Manual - Page 7
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Table of Contents Section 1 SPECIFICATIONS ........................................................... 10 Section 2 SUPPORT EQUIPMENT REQUIRED ................................ 10 Section 3 COOLANT RECOMMENDATIONS .................................... 10 Section 4 OPTIONAL ACCESSORIES .............................................. 10 Section 5 INSTALLATION .............................................................. 10 5.1 Location.................................................................
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THIS PAGE INTENTIONALLY BLANK K1587-1 Cobramatic® Owner's Manual - Page 9
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Section 1 SPECIFICATIONS Wire Diameter Capacity .................................... .030 - 1/16" ALL Types Wire Capacity .................................................... 12" Standard (Insulated or Non-Insulated) Power Input ....................................................... 42 VAC 50/60 Hz, ............................................................................ 150 Watts Peak (3 amps) Weight ................................................................ 31 pounds Shipping Weight
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5.2 42 VAC INPUT POWER CONNECTIONS Your Wire Feeder comes factory ready with a harness to plug directly into all 14 pin Lincoln Power Sources equipped with 42 VAC auxiliary. The 42 VAC is connected to the PC Board on terminal strip J5 #1 (neutral) and #2 (hot) and Ground to the Cabinet chassis. 5.3 POSA START CONNECTIONS Posa Start circuitry aids welding starts by sensing arc establish signals. A weld ground signal is required for this to circuit to work, which is provided through the Power H
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Tighten the torch pressure adjusting knob so the wire will be picked up and fed through the contact tip. Proper tension is achieved when wire does not slip if a small amount of pressure is added to the wire as it exits the tip. 6.3 PRE-SETTING SLAVE MOTOR TENSION All Cobramatics have preset adjusting nuts which enables spools of the same wire diameter and type to be changed without further pressure adjustment after initial set-up. To preset the slave motor tension bottom out the pressure adjus
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wire you are using. When in the .030-.035 aluminum only position, the slave motor produces approximately 1 1/2 lbs. inches and approximately 4 1/2 lbs. inches when in the all other wires position. (NOTE: Operating the cabinet with the switch in the wrong position will cause wire feed difficulties.) 7.2.3 POSA START CONTROLS The Posa Start Run-in Speed Control, located on the front panel, provides adjustment for slow wire run-in. Once the arc has been established, the wire feed speed is automa
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7.3.3 CC POSA START OPERATION Attach the Cobramatic® to a CC power source according to the installation instructions. Insure power supply high frequency switch is in the “OFF” position, and power supply is set to DC reverse polarity. The power supply contactor should be set to “Remote” or “Tig” and the amperage control set to “Panel” or “Standard” depending on power supply. Turn the Cobramatic® power switch to the “ON” position and the Posa Start switch to the “OFF” position. Adjust power sourc
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8.1.2 TESTING THE POTENTIOMETER - “W” CLOCKED Using the torch amphenol, check the resistance across pin “D” (wiper) and pin “C”. The resistance should vary from 0 - 5K ohms. Check the resistance across pin “D” (wiper) and pin “G”. The resistance should vary from 5K - 0 ohms. 8.1.3 TESTING THE MICRO SWITCH Using the torch amphenol, check for continuity across pins “E” and “F” when the trigger is pressed. 8.2 RELAY K2 OPERATION When the torch trigger is pressed, 24VAC is sent to the coil of r
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MAIN P.C. BOARD CONNECTIONS Note: For Cabinet - Remote Pot Kit, Remove Jumper from J13-J14. Plug Remote Pot Kit into J14. CURRENT SENSOR (Posa Start) J14 J13 J1 J2 FRONT PANEL J3 FRONT PANEL J4 BRAKE SOLENOID J7 SLAVE MOTOR J8 TRANSFORMER J6 J5 1 2 3 4 1 2 3 4 Input Power - 42VAC Input Power - 42VAC Control Chasis Ground Cable Closing Contacts Out LE P/N L10708-1 Closing Contacts Out MK P/N 843-0496 Weld Connection Ref (-) Not Used K1587-1 Cobramatic® Owner's Manual - Page 16
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TROUBLESHOOTING TROUBLE CAUSE REMEDY F2 & F3 (MDA7 7A Slow Blow) Check AC circuit. Replace fuse fuse in feeder blown. F1 (4 amp) fuse in feeder blown. Check motor leads for shorts, then replace fuse No wire feed at torch, feeder Micro-switch defective/not being Replace switch. Check switch for not operating, i.e., no slave activated. Broken electrical cable. operation. Check micro switch wires for motor or brake soleniod. continuity. Relay K2 inoperative. Check/Replace relay K2. Loose J2, J3, P.
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Exploded View - K1587-1 Wire Feed Cabinet K1587-1 Cobramatic® Owner's Manual - Page 18
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PARTS LIST - K1587-1 Wire Feed Cabinet No. Qty. Part Number Description 1 1 436-0122 Base, Cabinet, Screened, Lincoln 2 1 438-0019 Cover, Front, PCB, Lincoln 3 14 336-0038 Screw, PH Fil T/B #6-32 x 3/8 4 4 301-0103 Rubber Feet 5 16 333-0043 Washer, Int-Star #6 6 4 336-0006 Screw, PH Fil #6-32 x 1/2 7 6 341-0005 Nut, Hex #6-32 8 2 329-0003 Screw, Hex1/4-20 x 3/4 9 2 332-0009 Washer, Shoulder 0.265 ID 10 1 261-0105 Insulator Power Block 11 1 003-1674 Power Block Assy. 12 1 261-0104 Insulator, Spoo
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Exploded View - MK P/N 003-2016 Front Panel K1587-1 Cobramatic® Owner's Manual - Page 20
