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Lincoln Electric K2704-3 manual

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Table of contents for the manual

  • Page 1

    IM10032 August 2009 COUGAR TM Push Pull GUN Models: K2704-2, K2704-3 Safety depends on you. . . Lincoln arc welding and cutting equipment is designed and built with safety in mind. However , your overall safety can be increased by proper installation...and thoughtful operation on your part. DO NOT INST ALL, OPERA TE OR REP AIR THIS EQUIPMENT WITHOU[...]

  • Page 2

    FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors. _______________________________________________[...]

  • Page 3

    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-resistant material to protect your skin and that of [...]

  • Page 4

    FOR ELECTRICALL Y powered equipment. 8.a. T urn 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 manufacturer ʼs recommendations. 8.c. Ground the equipment in accordance with the U.S. National Electrical [...]

  • Page 5

    PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv- antes: Sûreté Pour Soudage A L ʼArc 1. Protegez-vous contre la secousse électrique: a. Les circuits à lʼélectro[...]

  • Page 6

    v v Tha nk Y ou for selecting one of our QUALITY products. We want you to take pride in operating this 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 handy for quick reference. Pay particular attention to the safe[...]

  • Page 7

    1 T ABLE OF CONTENTS SAFETY PRECAUTIONS ........................................................................................................................................... i-v T ABLE OF CONTENTS ................................................................................................................................................1 G[...]

  • Page 8

    PRODUCT DESCRIPTION The Cougar™ push-pull gun is a lightweight, handheld combined semiautomatic wire feeder and welding gun, designed primarily for aluminum welding using argon shielding gas. The cable included with the push-pull gun allows welding up to 25 (7.62m) or 50 feet (15.2m) from the power source. The gun is intended for use with Power W[...]

  • Page 9

    Unpacking the Push-Pull Gun Safety Precautions – Read "Safety Precautions" in the Operating Manual before pr o c e ed i n g. Only personnel that have read and understood the Operating Manual should install and operate this equipment. – Po wer so urce m ust be t urne d "OFF " an d po wer l eads d isco nnec ted wh en in stal l[...]

  • Page 10

    Push-pull Gun Familiarization Become familiar with your push-pull gun before connecting to welder . For features described below , refer to Figure on the next page. 1. Handle, gun can be used in either right or left hand. 2. T rigger operates welding power , gas flow, and wire feed. 3. Remote wire speed control, located behind the handle, con- trol[...]

  • Page 11

    Safety Precautions W ARNING • Do not touch electrically live parts or electrode with skin or wet clothing • Insulate yourself from work and ground. • Always wear dry insulating gloves. ELECTRIC SHOCK can kill. • Keep your head out of fumes. • Use ventilation or exhaust to re mov e fume s from b reat hing zo ne. FUMES AND GASES can be dang[...]

  • Page 12

    C O U G A R ™ P u s h P u l l G u n - O P E R AT I N G I N S T R U C T I O N S LID RELEASE LEVER 6 Drive Roll Groove Selection The drive roll has two grooves. A wider groove for feeding 3/64” (.047) wire and a narrow groove for feeding .035” (0.9mm) wire to accommodate changes in the wire size used. Changing between the grooves simply require[...]

  • Page 13

    7 C O U G A R ™ P u s h P u l l G u n - O P E R A T I N G I N S T R U C T I O N S Making A Weld 1 Check that the push-pull gun power , control, and gas connec- tions are cor re ct fo r the po wer so urce b eing u sed. C heck t ha t th e g as s uppl y is turned on. Check wire push-pull for an ade- quate supply of wire. 2. See "Procedure Setti[...]

  • Page 14

    COUGAR ™ Push Pull Gun ACCESSORIES/MAINTENANCE The following accessories are available for the Cougar™ push-pull gun. .035-3/64" Aluminum Drive Roll Kit Features two grooves for feeding aluminum wire. The smaller groove feeds .035 wire. The larger groove feeds 3/64th wire. Order KP2876-1 1/16" Aluminum Drive Roll Kit Features two groo[...]

  • Page 15

    C O U G A R ™ P u s h P u l l G u n T roubleshooting Guide PROBLEM SYMPTOMS REMEDY No arc, wire feed, or gas flow . 1. Cable connections loose. 1. Check all power connections. 2. T rigger switch loose or defective. 2. Fix switch or replace. 3. Welder not turned on. 3. T urn on welder power . 4. Welder not plugged in. 4. Plug in. 5. Cable or adapt[...]

  • Page 16

    C O U G A R ™ P u s h P u l l G u n T roubleshooting Guide TESTING THE TORCH Motor Check. Remove the torch connector from the cabinet. Using the torch Control Cable Connector , check the resistance acr os s p ins “A” an d “B” ( moto r lead s). T he res ista nc e acr oss th e moto r shou ld b e bet ween 5 -10 oh ms. I f an op en ci rcui t [...]

  • Page 17

    C O U G A R ™ P u s h P u l l G u n REPLACEMENT P ARTS LIST AND DIAGRAM 1 1 1 9 1 1 2 3 4 5 10 6 7 8 ITEM P ART NO. NO. DESCRIPTION 1 KP2877-180 180 Degree Air-Cooled Gun Barrel 2 S26374-31 Motor Assembly 3 S26374-6 Wire Drive Cover 4 S26374-14 Potentiometer Assembly 5 S26374-23 T rigger Assembly 6 S26374-24 Handle, Front 7 S26374-25 Handle, Back[...]

  • Page 18

    S26374-14 C O U G A R ™ L X P u s h P u l l G u n REPLACEMENT P ARTS LIST AND DIAGRAM ITEM NO. P ART NO. DESCRIPTION COMMENTS 1 S26374-31 Motor Assembly 2 S26374-7 Pressure Lever 3 S26374-8 Pivot Arm 4 S26374-9 Set Screw , Pressure Roll 5 S26374-10 Pressure Adjustment Knob Assembly 6 S26374-12 Ball Bearing 7 KP2876-1 Drive Roll Kit AL .035-3/64&q[...]

  • Page 19

    13 W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF ACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL F ABRICANTE P ARA [...]

  • Page 20

    14 W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE P ARA ESTE EQUIP AMENTO E AS PAR TES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR. ● Keep y our head ou t of fumes. ● Use ve ntilati on or exhau st to remo ve[...]

  • Page 21

    NOTES: ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ __________________[...]

  • Page 22

    • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 441 17-1 199 U.S.A. TEL: 216.481.8100 F AX: 216.486.1751 WEB SITE: www .lincolnelectric.com • World's Leader in W elding and Cutting Products • LNC.0016 7-09[...]