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Square Wave TIG 175 PRO
For use with machines having Code Numbers:
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
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.
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
• 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
RETURN TO MAIN INDEX
10732
10733
OPERATOR'S MANUAL
• World's Leader in Welding and Cutting Products •
Copyright © 2002 Lincoln Global Inc.
IM687
February, 2002
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Table of Contents
Troubleshooting
Related Manuals for Lincoln Electric SQUARE WAVE IM687
Summary of Contents for Lincoln Electric SQUARE WAVE IM687
- Page 1 Square Wave TIG 175 PRO For use with machines having Code Numbers: 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.
-
Page 2: California Proposition 65 Warnings
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 This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment. for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product •••...
-
Page 7: Table Of Contents
Installation ...Section A Technical Specifications ...A-1 Saftey Precautions ..Select Suitable Location ...A-2 Grinding ...A-2 Stacking ...A-2 Lifting ...A-2 Tilting ...A-2 Enviromental Rating ...A-2 Machine Grounding and High F Input Connections ...A-3 Input Reconnect Procedure ...A-3 Output Connections ...A-4 Connections For Tig (GTAW) Welding ...A-4 Tig Torch Connections ...A-4 Work Cable Connections ...A-4... -
Page 8: Installation
TECHNICAL SPECIFICATIONS - SQUARE WAVE TIG 175 PR0 (K1478-3 & -4 Standard Voltage 208/230/1/60 460/575/1/60 Duty Cycle GTAW 25% Duty Cycle 40% Duty Cycle 60% Duty Cycle 100% Duty Cycle SMAW 25% Duty Cycle 40% Duty Cycle 60% Duty Cycle 100% Duty Cycle Output Current Range... -
Page 9: Select Suitable Location
Dirt, dust or any foreign mater- ial that can be drawn into the welder should be kept at a minimum. Failure to observe these precautions can result in excessive operating temperatures and nui- sance shut-downs. -
Page 10: Input Connections
Flexible metallic conduit is generally not suit- able. 8. When the welder is enclosed in a metal building, the metal building should be connected to several good earth driven electrical grounds (as in 5 (b) above) around the periphery of the building. -
Page 11: Output Connections
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 also provides the gas con- nection for the shielding gas to the torch. -
Page 12: Remote Control Connection
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 , foot activated remote control, is included with the SQUARE WAVE TIG 175 PRO. -
Page 13: Peration
SAFETY PRECAUTIONS Read and understand this entire section before operat- ing the machine. WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet cloth- ing. • Insulate yourself from work and ground. •... -
Page 14: Controls And Settings
All operator controls and adjustments are located on the front of the SQUARE WAVE TIG 175 PRO. Refer to Figure B.1 and corresponding explanations. 1. POWER SWITCH & LIGHT - Turns power on to the welder. When switched “ON”, the cooling fan runs and the light will illuminate indicat- ing that the power is on. -
Page 15: Operating Steps
This helps eliminate accidental high cur- rent damage to the work piece and/or tungsten, and gives a fine control of the current. When the welder is in the stick mode a remote control has no effect and is not used. -
Page 16: Welding In Stick Mode
work. The AC waveform of the SQUARE WAVE 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”... -
Page 17: Accessories
Quick Connect Plug (S22529-1) and Strain Relief Boot (M17255) - One of each is shipped with the welder to connect the Magnum LA-9 torch. If you do not care to interchange these parts between torches (one of each is required to connect Magnum LA-9 or... -
Page 18: Maintenance
• Arc Starter/Spark Gap Assembly • PC Boards • Fan Blades 3. Inspect welder output and control cables for fraying, cuts, and bare spots. 4. Keep TIG torch and cables in good condition. 5. Clean air louvers to ensure proper air flow and cooling. -
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: Troubleshooting
Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Machine is Dead - No Output - No Fan Fan runs - No output from machine in either Stick or TIG modes. Fan runs - No output from machine in either Stick or TIG modes and the yellow light on the control panel is Machine does not respond (no gas flow, no high frequency and no open... - Page 21 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Machine regularly over heats - ther- mostat opens, Yellow light on front panel glows. The fan runs but machine has no output. 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 22 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Machine output is intermittently lost. Gas flow and high frequency are also interrupted. Arc “Flutters” when TIG welding. Arc “Pulsates” when AC TIG welding. 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 23 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Black areas along weld bead. Weak high frequency - machine has normal welding output. High frequency “spark” is present at tungsten electrode, but operator is unable to establish a welding arc. Machine has normal open circuit voltage (refer to Technical Specifications in the Installation...
- Page 24 Check filter screen inside gas inlet fitting to solenoid valve. Use filters to prevent reoccur- rence. 5. Consult your local welder/gas distributor. 1. Tungsten electrode may be too small for process. Use a larger diameter tungsten or a pure tungsten.
- Page 25 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Stick electrode “Blasts Off” when arc is struck. Stick electrode “sticks” in the weld puddle. 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 26 WIRING DIAGRAM SQUARE WAVE TIG 175 PRO...
- Page 27 WIRING DIAGRAM SQUARE WAVE TIG 175 PRO...
- Page 28 NOTES SQUARE WAVE TIG 175 PRO...
- Page 29 |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_| Account No. AMERICAN EXPRESS MasterCard AMERICAN EXPRESS USE THIS FORM TO ORDER: Order from: BOOK DIVISION, The Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199 BOOKS OR FREE INFORMATIVE CATALOGS Lincoln Welding School (ED-80) Seminar Information (ED-45)
- Page 30 ● WARNING ● Spanish ● AVISO DE PRECAUCION ● French ● ATTENTION ● German ● WARNUNG ● Portuguese ● ATENÇÃO ● Japanese Chinese Korean Arabic ● ● ● ● ● ● ● ● ● ●...
- Page 31 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Spanish ● PRECAUCION French ● ATTENTION German ● WARNUNG Portuguese ● ● Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
- Page 32 • 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...