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Lincoln Electric COBRAMAX IM774 - page 1
CobraMAX ™ IM774 MK 091-0525 December 2006 Rev . E OPERA T OR'S MANUAL GMA W Push-Pull Gun Safety Depends on Y ou Lincoln arc welding equipment is designed and built with safety in mind. However , your over- all safety can be increased by proper installation...and thoughtful operation on your part. DO NOT INST ALL, OPERA TE OR REP AIR THIS E ...
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CobraMAX™ Owner's Manual T able of Contents Safety Considerations Installation ............................................................................... Section A T echnical Specications ..................................................................................... 1 Support Equipment Required ................................ ...
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CobraMAX™ Owner's Manual Declaration of Conformity for European Community (CE) Products Note This information is provided for units with CE certication (see rating label on unit). Manufacturer ’s Name: MK Products, Inc. 16882 Armstrong A ve. Irvine, CA 92606 Declares that the product: CobraMAX ™ conforms to the following Directives an ...
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CobraMAX™ Owner's Manual - Page i ...
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CobraMAX™ Owner's Manual - Page ii ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards. 4. b . Use suitable clothing made from durable flame-resistan ...
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CobraMAX™ Owner's Manual - Page iii FOR ELECTRICALL Y powered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 8 . b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturerʼs recommendations. 8.c. Ground the equipment in ac ...
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CobraMAX™ Owner's Manual Thank You for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you! Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it ha ...
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Lincoln Electric COBRAMAX IM774 - page 11
CobraMAX™ Owner's Manual - Page 1 Section A Installation T echnical Specications Wire Capacity .030" - .045" (0.6mm - 1.2mm) solid and hard wire .030" - 1/16" (0.8mm - 1.6mm) aluminum and cored wire Wire Speed 800 IPM (20.3 mpm) Max at rated feeder input voltage (120V AC / 42V AC) Duty Cycle All ratings are using Argon ...
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Lincoln Electric COBRAMAX IM774 - page 12
CobraMAX™ Owner's Manual - Page 2 Gas Hose The gas hose is secured over the barbed gas tting with a tie wrap. The cabinet end of the gas hose uses our standard gas tting (1/8” - 27 nps). W ater Hose If so equipped, one end of the water hose is secured over the barbed water tting with a tie wrap and the other end is connected to th ...
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Lincoln Electric COBRAMAX IM774 - page 13
CobraMAX™ Owner's Manual - Page 3 Drive Roll and Idler Rolls General The CobraMAX ™ gun comes standard with a knurled drive roll and a grooved idler roll, which will handle both steel and aluminum wire with diameters from .030-1/16 inch. Optional insulated V -groove drive rolls are also available for aluminum wire if desired (see optional ...
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CobraMAX™ Owner's Manual - Page 4 Section C Accessories LE P/N MK P/N Optional Kits Insulated Drive Roll Kits are used to prevent preheating of the wire which may soften it and clog the liner . This picking up of current at the drive rolls rather than at the contact tip is usually not a problem unless using too large of a contact tip or exce ...
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CobraMAX™ Owner's Manual - Page 5 Contact Tips Heavy Duty Contact Tip - 3/8" Diameter* Wire Size Tip ID Arc Tip Length MK Part No LE Part No .030” (0.8mm) .040” (1.0mm) Spray 1.57” (39.9mm) 621-0390-25 KP2217-1B1 Short 1.82” (46.2mm) 621-0396-25 -- .035” (0.9mm) .045” (1.1mm) Spray 1.57” (39.9mm) 621-0391-25 KP2217-2B1 621 ...
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CobraMAX™ Owner's Manual - Page 6 Section D Maintenance Periodic Maintenance Y our Cobramatic ® System is designed to provide years of reliable service. Maintenance of the gun will normally consist of a general cleaning of the wire guide system, including barrel, drive rolls, and conduit at regular intervals Remove spatter build-up from ins ...
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CobraMAX™ Owner's Manual - Page 7 Section E T roubleshooting T rouble Cause Remedy No wire feed at gun, feeder not operating, i.e., no slave motor or brake solenoid. 1 15 V AC Control fuse in feeder/ Control box blown. Replace fuse. Micro-switch defective/not being activated. Replace switch. Check switch for operation. Broken electrical cabl ...
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CobraMAX™ Owner's Manual - Page 8 T roubleshooting Guide Regardless of which gun or feeder used, all MK Products’ push-pull guns operate on the same principle. The slave motor in the feeder runs at a fast, constant speed, but has very low torque. It is always trying to feed more wire than the gun motor wants, and when the motor gets all it ...
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CobraMAX™ Owner's Manual - Page 9 Section F Appendices Diagrams / Parts List 001-1420 CobraMAX™ Exploded View . . . . . . . . . . . . . . . . . . 12 003-2141 Front Body Assembly ........................ 1 4 Ultra-Flex Air Cooled Lead Assembly .................... 1 5 W ater Cooled Lead Assembly . . . . . . . . . . . . . . . . . . . . . . . ...
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Lincoln Electric COBRAMAX IM774 - page 20
CobraMAX™ Owner's Manual - Page 10 CobraMAX ™ Exploded V iew ITEMS 25 AND 44 NOT SHOWN FOR CLARITY APPL Y ITEM 49 T O CONT ACT SURF ACES APPL Y ITEM 48 BEFORE INST ALLING APPL Y ITEM 45 T O CONT ACT SURF ACES APPL Y ITEM 46 T O THREADS APPL Y ITEM 47 T O THREADS APPL Y ITEM 45 T O THREADS TORQUE REQUIRES 100+5 IN-LB ...
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Lincoln Electric COBRAMAX IM774 - page 21
CobraMAX™ Owner's Manual - Page 1 1 CobraMAX™ Parts List No. Qty . Part No. Description No. Qty . Part No. Description 1 1 Ref. 227 Series Ultra Flex Air Cooled Assembly 26 - -- -- 1 1 Ref. 228 Series Ultra Flex Liquid Cooled Assembly 27 - -- -- 2 1 002-0629 Assy Cam Idler Arm 28 1 421-0018 Dowel Pin 3/32 x 7/8 SST 3 1 002-0631 Brazed Rear ...
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Lincoln Electric COBRAMAX IM774 - page 22
CobraMAX™ Owner's Manual - Page 12 NOTE: Items #3, 4, and 9 can be ordered together in Kit LE P/N KP2220-1, MK P/N 005-0686. Front Body Assembly 003-2141 No. Qty . Part No. Description 1 - - Not A vailable Separately 2 - - Not A vailable Separately 3 1 325-0206 SCR Ph 10-24-3/8 4 1 333-0082 Washer Lock 10 5 1 419-0092 Spring Comp 0.31 OD x 0 ...
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Lincoln Electric COBRAMAX IM774 - page 23
CobraMAX™ Owner's Manual - Page 13 Ultra-Flex Air Cooled Lead Assembly* *Leads shown for reference only This power cable has a boot that is common to many assemblies but must be removed from this end when used on the CobraMAX™. 227 Series Ultra-Flex Cable Assemblies Length Conduit Power Cable Electrical Cable Gas Hose Snake Skin ® 15" ...
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CobraMAX™ Owner's Manual - Page 14 W ater Cooled Lead Assembly* *Leads shown for reference only This power cable has a boot that is common to many assemblies but must be removed from this end when used on the CobraMAX™. TORQUE REQUIRES 100+5 IN-LB 228 Series Ultra-Flex Cable Assemblies Length Conduit #4 Power/W ater Cable Electrical Cable ...
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Lincoln Electric COBRAMAX IM774 - page 25
CobraMAX™ Owner's Manual - Page 15 A F G E D C B "W" Clock ed Amphenol Connector Viewed from front of connector E C A B D G F + - T OR CH MO T OR T OR CH PO T T OR CH TRIGGER 5K Red Red Black Black Blue Blue Y ellow Y ellow Brown Brown White White Green Green 1 3 2 Cabinet End Amphenol Connector T or ch F unctions T orch Lead Cobra ...
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Lincoln Electric COBRAMAX IM774 - page 28
MK Products, Inc. 16882 Armstrong A ve. Irvine, CA 92606 T el (949)863-1234 Fax (949)474-1428 Copyright © 2006 Lincoln Global Inc. W orld's Leader in W elding and Cutting Products Sales and Service through Subsidiaries and Distibutors W orldwide Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 F AX: 216.486.1751 WEB SITE: www.lincolnelectr ...
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