Lincoln Electric TANDEM MIG S22693-121 Operator's Manual
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Lincoln Electric TANDEM MIG S22693-121 Operator's Manual

Lincoln Electric TANDEM MIG S22693-121 Operator's Manual

Amperage welding torch
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RETURN TO MAIN MENU
IM865
TANDEM MIG 800 AMPERAGE WELDING TORCH
February, 2005
S22693-121, -122, -123, -124, -133
Models:
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 thought-
ful 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, think before you act
and be careful.
OPERATOR'S MANUAL
Copyright © 2005 Lincoln Global Inc.
• World's Leader in Welding and Cutting Products •
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

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Summary of Contents for Lincoln Electric TANDEM MIG S22693-121

  • Page 1 RETURN TO MAIN MENU IM865 TANDEM MIG 800 AMPERAGE WELDING TORCH February, 2005 S22693-121, -122, -123, -124, -133 Models: 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 ...

  • Page 2: California Proposition 65 Warnings

    351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199. BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.

  • Page 3: Electric Shock Can Kill

    ELECTRIC SHOCK can kill. 3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate hands.
  • Page 4 WELDING SPARKS can cause fire or explosion. 6.a. Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
  • 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’Arc 1. Protegez-vous contre la secousse électrique: a.
  • Page 6 The code number is especially important when identifying the correct replacement parts. - Register your machine with Lincoln Electric either via fax or over the Internet. • For faxing: Complete the form on the back of the warranty statement included in the literature packet accompanying this machine and fax the form per the instructions printed on it.

  • Page 7: Table Of Contents

    Installation………………………………………………………………...……...…….Section A Technical Specifications...A-1 General Description ...A-2 Torch Mounting …...…………………………………………………..…...…………..……A-2 Liner Installation ..………………………………………………………..……………..……A-2 Contact Tip and Diffuser Installation...……………………………………..………….…A-3 Connecting the Torch to the Welding Equipment ..…….………………………..……….A-3 Contact Tip Selection ..……………………………………………………..………….……A-3 Contact Tip Size...A-4 Wire Straighteners.………………………………………………………..…………………A-4 Operation ... Section B Electrodes and Equipment ...B-1 Making a Weld ...B-1 Avoiding Wire Feeding Problems...B-1 Shielding Gas Delivery...B-1...

  • Page 8: Installation

    TECHNICAL SPECIFICATIONS - Tandem MIG Torch (800 amp) Tandem MIG Torch Cable Length Availability Product number S22693-121 S22693-122 S22693-123 S22693-124 S22693-133 Minimum 35 scfh / electrode (70 scfh total) Flow rate: Minimum 0.45 gal/min 350 amps at 100% per electrode / 700 amps total 400 amps at 60% per electrode / 800 amps total Maximum current draw per electrode 500 amps Torch and Cable assembly weights...

  • Page 9: General Description

    GENERAL DESCRIPTION The Tandem MIG 800 Amp Welding Torch is designed to deliver two wire electrodes to a single weld pool. The wire electrodes are electrically isolated from one another providing independent parameter control of both electrodes. The torch has two separate wire spacing options.

  • Page 10: Contact Tip And Diffuser Installation

    CONTACT TIP AND DIFFUSER INSTALLATION The welding torch is equipped with specially designed diffusers. The diffuser is of a low profile design to accommodate the Tandem torch design. The diffuser is required to provide a current path to the contact tip and must be secured tightly.

  • Page 11: Contact Tip Size

    INSTALLATION CONTACT TIP SIZE Contact tips are available in standard sizes to match the wire specifications of the welding torch (.035, .045, .052 and .062 inches). Some Tandem applications may require greater arc stability than others. If arc instability due to electrical transfer through the contact tip is encountered, an undersized contact tip may be required.

  • Page 12: Operation

    ELECTRODES AND EQUIPMENT The Tandem MIG 800 amp torch has been designed for use with 0.035" through 0.062" diameter Lincoln Electric solid and metal cored steel GMAW wire weld- ing electrodes. Refer to the appropriate Lincoln process and electrode selection guidelines for further information on available electrodes and packaging.

  • Page 13: Nozzle Reaming

    OPERATION NOZZLE REAMING STATIONS During robotic applications a reamer should be employed to keep the nozzle clean. Reaming the noz- zle between welds will reduce the down time associat- ed with manual torch cleaning. The M18426-1 ream- ing station is an option that is recommended for noz- zle cleaning.

  • Page 14: Maintenance

    CONTACT TIP REPLACEMENT Each application will dictate the frequency of contact tip replacement. Higher amperage, higher duty cycle operations will require more frequent contact tip replacement. The condition of the contact tip greatly effects the welding performance of the Tandem MIG process.

  • Page 15: Contact Tip Alignment

    CONTACT TIP ALIGNMENT During gooseneck replacement or after a torch colli- sion it may be required to check the contact tip align- ment. If using a robot, it is recommended that a tool center pointer is placed in the robotic cell to define the location of the lead wire.
  • Page 16 MAINTENANCE S22693-XXX MIG 800 amp Torch All dimensions in inches. Bracketed dimensions are in [millimeters] 800 AMP TANDEM MIG TORCH...
  • Page 17 MAINTENANCE L10430-1 Torch Alignment Tool (Consisting of the following three parts) 1. Base dimensions (Part number L10430-3) 2. Check Block dimensions (Part number L10430-2) 800 AMP TANDEM MIG TORCH...
  • Page 18 MAINTENANCE L10430-1 Torch Alignment Tool 3. Holding block dimensions (Part number L10430-4) 800 AMP TANDEM MIG TORCH...

  • Page 19: Troubleshooting

    HOW TO USE TROUBLESHOOTING GUIDE Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 20 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) The drive rolls turn, but wire will not feed or wire feeding is rough. Porosity in the weld. There is arcing in the nozzle. The welding arc is inconsistent. Inconsistent wire feeding. If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
  • Page 21 NOTES 800 AMP TANDEM MIG TORCH...
  • Page 22 NOTES 800 AMP TANDEM MIG TORCH...
  • Page 23 ● WARNING ● Spanish ● AVISO DE PRECAUCION ● French ● ATTENTION ● ● German WARNUNG ● Portuguese ● ATENÇÃO ● Japanese Chinese Korean Arabic ● ● ● ● ● ● ● ● ● ●...
  • Page 24 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Spanish ● PRECAUCION French ● ATTENTION ● German WARNUNG Portuguese ● ● Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
  • Page 25 • World's Leader in Welding and Cutting Products • • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com...

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