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Lincoln Electric IM687 manual

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Table of contents for the manual

  • Page 1

    Square W a v e TIG 175 PRO OPERA T OR’S MANUAL IM687 February , 2002 Safety Depends on Y ou 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

    ii SAFETY 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-resistant material to protect your skin[...]

  • 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 ’s recommendations. 8.c. Ground the equipment in accordance with the U.S. National Electrical[...]

  • Page 5

    iv SAFETY iv 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. Les circuits [...]

  • Page 6

    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 handy for quick reference. Pay par[...]

  • Page 7

    T ABLE OF CONTENTS Page Installation ..........................................................................................................Section A T echnical Specifications ...............................................................................................A-1 Saftey Precautions .. ..................................................[...]

  • Page 8

    A-1 INST ALLA TION SQUARE W A VE TIG 175 PRO A-1 TECHNICAL SPECIFICA TIONS - SQUARE W A VE TIG 175 PR0 (K1478-3 & -4 For AC/DC Stick and DC TIG Welding at 150A/25% Duty Cycle and for AC TIG Welding up to 1 10A/25% Duty Cycle. Based on the 1996 U.S. National Electrical Code For AC TIG Welding at 150 A/25% Duty Cycle, Based on the 1996 U.S. Natio[...]

  • Page 9

    A-2 INST ALLA TION SQUARE W A VE TIG 175 PRO A-2 ELECTRIC SHOCK can kill. • Only qualified personnel should perform this installation. • T urn the input power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically hot parts. • Always connect the SQUARE WA VE TIG 175 PRO to a power supply groun[...]

  • Page 10

    INPUT RECONNECT PROCEDURE On multiple input voltage welders, be sure the machine is connected per the following instructions for the volt- age being supplied to the welder . Failure to follow these instructions can cause immedi- ate failure of components within the welder . ___________________________________________ Multiple voltage models are shi[...]

  • Page 11

    A-4 INST ALLA TION SQUARE W A VE TIG 175 PRO A-4 A TIG welding torch with cable and connector is sup- plied with the welder . Turn the Power Switch “OFF”. Connect the torch cable quick connect plug into the Electrode/Gas Output Receptacle on the front of the welder and turn it clockwise until it is tight. This is a quick connect terminal and al[...]

  • Page 12

    A-5 INST ALLA TION SQUARE W A VE TIG 175 PRO A-5 these steps in reverse. REMOTE CONTROL CONNECTION A remote control receptacle is provided on the case front of the welder for connecting a remote control to to the machine. A Foot Amptrol tm , foot activated remote control, is included with the SQUARE W A VE TIG 175 PRO. Refer to the Optional Accesso[...]

  • Page 13

    B-1 OPERA TION B-1 PRODUCT DESCRIPTION The SQUARE W A VE TIG 175 PRO is a constant cur- rent, single range AC/DC TIG (GT A W) arc welding power source with built-in arc starter / stabilizer . It also has stick welding (SMA W) capability . The SQUARE W A VE TIG 175 PRO is recommended for the TIG (GT A W) and stick (SMA W) welding processes within it[...]

  • Page 14

    B-2 OPERA TION B-2 1. POWER SWITCH & LIGHT - T urns power on or off to the welder . When switched “ ON ” , the cooling fan runs and the light will illuminate indicat- ing that the power is on. 2. TIG/STICK SWITCH - Selects the mode of output, either TIG (GT A W) or Stick (SMA W). Refer to Welding in TIG Mode and W elding in Stick Mode later[...]

  • Page 15

    B-3 OPERA TION B-3 6. REMOTE CONTROL CONNECTOR - This connector provides connection for a remote control. See Remote Control Operation in this section of the manual. 7. ELECTRODE/GAS OUTPUT RECEPT ACLE - This quick connect receptacle provides electrical connec- tion to the electrode holder and cable for Stick weld- ing and a combined electrical and[...]

  • Page 16

    B-4 OPERA TION B-4 work. The AC waveform of the SQUARE W A VE TIG 175 PRO optimizes cleaning and heating of the work. The result is the capability to weld through the complete range of 10 to 175 amperes in AC TIG or DC- TIG requiring only one electrode, a 3/32 ” 2% thoriated tungsten . WELDING IN STICK MODE 1. Put the electrode holder and cable q[...]

  • Page 17

    C-1 ACCESSORIES C-1 OPTIONAL EQUIPMENT K964-1 Undercarriage with Pivoting Single Gas Cylinder Platform - This undercarriage features a piv- oting platform to easily load and unload the gas cylin- der without lifting. It was designed specifically for the SQUARE W A VE TIG 175 PRO power source, and accommodates 7 ” to 9 1/4 ” diameter gas cylinde[...]

  • Page 18

    D-1 MAINTENANCE D-1 SQUARE W A VE TIG 175 PRO ELECTRIC SHOCK can kill. • Only qualified personnel should perform this maintenance. • T urn the input power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically hot parts. T o avoid receiving a high frequency shock, keep the TIG torch and cables i[...]

  • Page 19

    DO NOT use a volt-ohm meter to measure output voltages in TIG mode. The High Frequency Arc Starter voltage can damage the meter . CAUTION E-1 TROUBLESHOOTING E-1 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 t[...]

  • Page 20

    E-2 TROUBLESHOOTING E-2 SQUARE W A VE TIG 175 PRO Observe all Safety Guidelines detailed throughout this manual 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. CAUT[...]

  • Page 21

    E-3 TROUBLESHOOTING E-3 SQUARE W A VE TIG 175 PRO Observe all Safety Guidelines detailed throughout this manual 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. CAUT[...]

  • Page 22

    E-4 TROUBLESHOOTING E-4 SQUARE W A VE TIG 175 PRO Observe all Safety Guidelines detailed throughout this manual 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. CAUT[...]

  • Page 23

    E-5 TROUBLESHOOTING E-5 SQUARE W A VE TIG 175 PRO Observe all Safety Guidelines detailed throughout this manual 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. CAUT[...]

  • Page 24

    E-6 TROUBLESHOOTING E-6 SQUARE W A VE TIG 175 PRO Observe all Safety Guidelines detailed throughout this manual 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. CAUT[...]

  • Page 25

    E-7 TROUBLESHOOTING E-7 SQUARE W A VE TIG 175 PRO Observe all Safety Guidelines detailed throughout this manual 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. CAUT[...]

  • Page 26

    F-1 WIRING DIAGRAM F-1 SQUARE W A VE TIG 175 PRO (-) (+) SCR4 SCR2 SCR1 D C B A F E D C B A + - REAR GANG L1 (-) ELECTRODE T4 NC NO MICRO-SWITCH T3 S F L3 L4 C3 SCR3 115VAC Y W H1 X1 H G 311 312 OPEN CLOSED CLOSED G4 216 G3 218 G2 G1 217 220 X2 FRONT GANG E F PC BOARD THERMAL LIGHT J5 CONTROL PC BOARD D1 J3 INPUT PLUG PL1 S2 R1 S3 MODE SWITCH TL1 S[...]

  • Page 27

    F-2 WIRING DIAGRAM F-2 SQUARE W A VE TIG 175 PRO L1 L2 241 TL1 THERMOSTAT 242 CONTROL PC BOARD H1 T1 78VAC 18VAC 18VAC 115VAC POLARITY SWITCH PL1 W X5 B X4 W X3 HIGH VOLTAGE CAPACITOR, .0015/12kV H2 (460V) H3 (575V) C2 C1 PULSER GAS SOLENOID, 115VAC OUTPUT INDUCTOR (CHOKE) PHASE SHIFT CAPACITOR 15uF/250VAC C4 C3 B B GAP SPARK B-D, A-E, C-F, G-H B-D[...]

  • Page 28

    NOTES SQUARE W A VE TIG 175 PRO[...]

  • Page 29

    Now A vailable...12th Edition The Procedure Handbook of Arc Welding With over 500,000 copies of previous editions published since 1933, the Procedure Handbook is considered by many to be the “ Bible ” of the arc welding industry . This printing will go fast so don ’ t delay . Place your order now using the coupon below . The hardbound book co[...]

  • Page 30

    W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O 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 PARA EL[...]

  • Page 31

    W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE PARA ESTE EQUIP AMENTO E AS P ARTES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR. ● Keep your head out of fumes. ● Use ventilation or exhaust to remove fumes f[...]

  • Page 32

    • 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 •[...]