Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; SQUARE WAVE TIG 175 PRO
FOR ENGINEpowered equipment. 1.a. Turn 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; ELECTRIC SHOCK can kill.
ii SAFETY ii ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable...
Page 4 - iii
FOR ELECTRICALLYpowered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working onthe equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’srecommendations. 8.c. Ground the equipment in ac...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
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 seco...
Page 6 - Thank You; Please Examine Carton and Equipment For Damage Immediately
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...
Page 7 - TABLE OF CONTENTS
TABLE OF CONTENTS Page Installation ..........................................................................................................Section A Technical Specifications ...............................................................................................A-1Saftey Precautions .. ......
Page 8 - INSTALLATION; INPUT - SINGLE PHASE ONLY
A-1 INSTALLATION SQUARE WAVE TIG 175 PRO A-1 TECHNICAL SPECIFICATIONS - SQUARE WAVE 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 110A/25% Duty Cycle. Based on the 1996 U.S. National Electrical Code For AC TIG Welding at 150 A/25...
Page 9 - SELECT SUITABLE LOCATION; should be lifted by two
A-2 INSTALLATION SQUARE WAVE TIG 175 PRO A-2 ELECTRIC SHOCK can kill. • Only qualified personnel should perform this installation. • Turn 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 WAVE...
Page 10 - INPUT RECONNECT PROCEDURE; For the highest rated voltage connection; INPUT CONNECTIONS; Technical Specifications; CAUTION
INPUT RECONNECT PROCEDURE On multiple input voltage welders, be sure the machineis 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. ______________________________...
Page 11 - section of this manual for the proper pro-; TIG TORCH CONNECTION; FIGURE A.2 Location of Output Connections
A-4 INSTALLATION SQUARE WAVE 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 theElectrode/Gas Output Receptacle on the front of thewelder and turn it clockwise until it is tight. Th...
Page 12 - , foot activated remote
A-5 INSTALLATION SQUARE WAVE TIG 175 PRO A-5 these steps in reverse.REMOTE CONTROL CONNECTION A remote control receptacle is provided on the casefront of the welder for connecting a remote control toto the machine. A Foot Amptrol tm , foot activated remote control, is included with the SQUARE WAVE T...
Page 13 - OPERATION; PRODUCT DESCRIPTION; INCLUDED EQUIPMENT; WELDING CAPABILITY; SAFETY PRECAUTIONS
B-1 OPERATION B-1 PRODUCT DESCRIPTION The SQUARE WAVE TIG 175 PRO is a constant cur-rent, single range AC/DC TIG (GTAW) arc weldingpower source with built-in arc starter / stabilizer. It alsohas stick welding (SMAW) capability. The SQUARE WAVE TIG 175 PRO is recommendedfor the TIG (GTAW) and stick (...
Page 14 - off to the welder. When switched; POLARITY SWITCH - Allows you to select between; If the welder; CONTROLS AND SETTINGS
B-2 OPERATION B-2 1. POWER SWITCH & LIGHT - Turns 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 (GTAW) or Stick (SMAW). Refer toWelding in TIG...
Page 15 - REMOTE CONTROL CONNECTOR - This connector; OPERATING STEPS; WELDING IN TIG MODE; NOTE: When the TIG/STICK switch is set to
B-3 OPERATION B-3 6. REMOTE CONTROL CONNECTOR - This connector provides connection for a remote control. See RemoteControl Operation in this section of the manual. 7. ELECTRODE/GAS OUTPUT RECEPTACLE - This quick connect receptacle provides electrical connec-tion to the electrode holder and cable for...
Page 16 - WELDING IN STICK MODE; RECOMMENDED ELECTRODE AMPERAGE RANGES - SQUARE WAVE TIG 175 PRO; SMAW Process
B-4 OPERATION B-4 work.The AC waveform of the SQUARE WAVE TIG 175PRO optimizes cleaning and heating of the work. Theresult is the capability to weld through the completerange of 10 to 175 amperes in AC TIG or DC- TIGrequiring only one electrode, a 3/32 ” 2% thoriated tungsten. WELDING IN STICK MODE ...
Page 17 - ACCESSORIES; OPTIONAL EQUIPMENT; - A Lincoln Foot Amptrol is
C-1 ACCESSORIES C-1 OPTIONAL EQUIPMENT K964-1 Undercarriage with Pivoting Single GasCylinder Platform - This undercarriage features a piv-oting platform to easily load and unload the gas cylin-der without lifting. It was designed specifically for theSQUARE WAVE TIG 175 PRO power source, andaccommoda...
Page 18 - MAINTENANCE; FAN MOTOR OR FAN BLADE REPLACEMENT
D-1 MAINTENANCE D-1 SQUARE WAVE TIG 175 PRO ELECTRIC SHOCK can kill. • Only qualified personnel shouldperform this maintenance. • Turn the input power OFF at thedisconnect switch or fuse boxbefore working on thisequipment. • Do not touch electrically hot parts. To avoid receiving a high frequency sh...
Page 19 - TROUBLESHOOTING; Look under the column labeled; HOW TO USE TROUBLESHOOTING GUIDE
DO NOT use a volt-ohm meter to measure output voltages in TIG mode. TheHigh 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 LocalLincoln Aut...
Page 20 - Observe all Safety Guidelines detailed throughout this manual; OUTPUT PROBLEMS; ON
E-2 TROUBLESHOOTING E-2 SQUARE WAVE 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 LocalLincoln Authorized Field Service Facility for technical troub...
Page 22 - TIG MODE PROBLEMS
E-4 TROUBLESHOOTING E-4 SQUARE WAVE 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 LocalLincoln Authorized Field Service Facility for technical troub...
Page 23 - TIG WELDING PROBLEMS; Technical
E-5 TROUBLESHOOTING E-5 SQUARE WAVE 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 LocalLincoln Authorized Field Service Facility for technical troub...
Page 24 - Click
E-6 TROUBLESHOOTING E-6 SQUARE WAVE 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 LocalLincoln Authorized Field Service Facility for technical troub...
Page 25 - STICK WELDING PROBLEMS
E-7 TROUBLESHOOTING E-7 SQUARE WAVE 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 LocalLincoln Authorized Field Service Facility for technical troub...
Page 26 - WIRING DIAGRAM
F-1 WIRING DIAGRAM F-1 SQUARE WAVE 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 31 1 31 2 OPEN CLOSED CLOSED G4 216 G3 218 G2 G1 217 220 X2 FRONT GANG E F PC BOARD THERMAL LIGHT J5 CONTROL PC BOA...
Page 28 - NOTES
Page 29 - Lincoln Welding School; BASIC COURSE; weeks of fundamentals
Now Available...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...
Page 30 - ÇÃ
WARNING AVISO DE PRECAUCION ATTENTION WARNUNG ATEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TOBE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS I...