Square Wave TIG 175 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.
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.
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. 3.b.
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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.
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.
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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 •••...
Read entire installation section before starting installation. Safety Precautions WARNING 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. •...
b) A 3/4” (19mm) galvanized pipe or a 5/8” (16mm) solid galvanized iron, steel or copper rod driven at least eight feet into the ground. The ground should be securely made and the ground- ing cable should be as short as possible using cable of the same size as the work cable, or larger.
INPUT LEADS L1 & L2 INPUT SUPPLY CONNECTION FOR 220-240V: CONNECT COPPER LINK TO H2 - (SEE INPUT SUPPLYCONNECTION SECTION) FOR 380V: CONNECT COPPER LINK TO H3 FOR 400-415V: CONNECT COPPER LINK TO H4 (AS SHOWN) FIGURE A.1 Reconnect Leads OUTPUT CONNECTIONS ELECTRODE/GAS OUTLET WORK CABLE &...
INSTALLATION 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. Refer to the Optional Accessories section of this manual for other available remote controls. CONNECTIONS FOR STICK (SMAW) WELDING STICK ELECTRODE CABLE AND WORK CABLE...
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 clothing. • Insulate yourself from work and ground. • Always wear dry insulating gloves. •...
CONTROLS AND SETTINGS All operator controls and adjustments are located on the front of the Square Wave TIG 175. Refer to Figure B.1 and corresponding explanations. 1. POWER SWITCH & LIGHT - Turns power on to the welder. When switched “ON”, the cool- ing fan runs and the white light will illuminate indi- cating that the power is on.
7. MODE SWITCH - A three position toggle switch used to select the welding mode. Refer to WELD- ING IN THE STICK MODE, and WELDING IN THE TIG MODE(2-STEP AND 4-STEP) later in this sec- tion for information on how the machine functions in each of these modes.
(STEP 3) Second Press: The output ramps down to the level set with the Start/Crater Current control. The time it takes to ramp down is set with the Down slope Time control. (Approx. 0.5 to 10 seconds) (STEP 4) Second Release: Output is turned off stop- ping the weld and a 15 second Postflow of shielding gas is applied.
the positive portion may also cause the electrode to overheat at high currents causing “tungsten spitting”. The negative portion of the AC wave offers no cleaning action but concentrates more heat on the work. The AC waveform of the Square Wave TIG 175 optimizes cleaning and heating of the work.
OPTIONAL ACCESSORIES 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 Wave TIG 175 power source, and accommo- dates 7”...
SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill. • Only qualified personnel should perform this maintenance. • Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically hot parts. WARNING To avoid receiving a high frequency shock, keep the TIG torch and cables in good condition.
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.
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Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Machine is Dead - No Output - No Fan Output is present No Fan, High Frequency, Lights, or Gas Solenoid Fan runs - No output from machine in either Stick or TIG (2/4 Step) modes.
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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.
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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.
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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...
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Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) No high frequency. Machine is in either 2 or 4 Step TIG Mode and has normal output. Fan is running and power light is on. No gas flow when Amptrol is activat- ed in the 2/4 Step TIG Modes.
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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.
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Check or Money Order Enclosed, U.S. Funds only Credit Card - |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_| Account No. 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...
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• 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...