RETURN TO MAIN INDEX IM687 Square Wave TIG 175 PRO For use with machines having Code Numbers: February, 2002 10732 10733 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.
i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS For Gasoline Engines: The engine exhaust from For Diesel Engines: Diesel engine exhaust and this product contains chemicals known to the some of its constituents are known to the State State of California to cause cancer, birth defects, of California to cause cancer, birth defects, and or other reproductive harm. other reproductive harm. ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.
ii ii SAFETY ELECTRIC SHOCK can kill. ARC RAYS can burn. 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. 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. 3.b.
iii iii SAFETY 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. Avoid welding near hydraulic lines. Have a fire extinguisher readily available. 6.b.
iv SAFETY 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 suivantes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a. Les circuits à l’électrode et à la piéce sont sous tension quand la machine à souder est en marche.
v v 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! Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped, title passes to the purchaser upon receipt by the carrier.
vi vi TABLE OF CONTENTS Page Installation ..........................................................................................................Section A Technical Specifications ...............................................................................................A-1 Saftey Precautions.. ............................................................................................................................................... .A-2 Select Suitable Location ................................
A-1 A-1 INSTALLATION TECHNICAL SPECIFICATIONS - SQUARE WAVE TIG 175 PR0 (K1478-3 & -4 INPUT - SINGLE PHASE ONLY Standard Voltage 208/230/1/60 460/575/1/60 Code Number 10732 10733 Input Current at Rated Output 59/53 AC/DC Stick & DC TIG - 72/65 AC TIG 27/22 AC/DC Stick & DC TIG - 33/27 AC TIG RATED OUTPUT Duty Cycle GTAW 25% Duty Cycle 40% Duty Cycle 60% Duty Cycle 100% Duty Cycle Amps 150 125 110 90 SMAW 25% Duty Cycle 40% Duty Cycle 60% Duty Cycle 100% Duty Cycle 150 125 110 90 Volts at Rated Amp
A-2 INSTALLATION SAFETY PRECAUTIONS Read entire installation section before starting installation. A-2 MACHINE GROUNDING AND HIGH FREQUENCY INTERFERENCE PROTECTION The welder must be grounded. See your local and national electrical codes for proper grounding methods. WARNING The high frequency generator, being similar to a radio transmitter, can be blamed for radio, TV and electronic equipment interference problems. These problems may be the result of radiated interference.
A-3 A-3 INSTALLATION INPUT RECONNECT PROCEDURE a) A metal underground water pipe in direct contact with the earth for ten feet or more. 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 grounding cable should be as short as possible using cable of the same size as the work cable, or larger.
A-4 A-4 INSTALLATION FOR LOWEST RATED VOLTAGE : H2 CONNECTED FOR HIGHEST RATED VOLTAGE : H3 CONNECTED LEAD H1 (DO NOT REMOVE) A TIG welding torch with cable and connector is supplied 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 also provides the gas connection for the shielding gas to the torch.
A-5 INSTALLATION 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 Amptroltm, foot activated remote control, is included with the SQUARE WAVE TIG 175 PRO. Refer to the Optional Accessories section of this manual for other available remote controls.
OPERATION B-1 B-1 SAFETY PRECAUTIONS PRODUCT DESCRIPTION Read and understand this entire section before operating the machine. The SQUARE WAVE TIG 175 PRO is a constant current, single range AC/DC TIG (GTAW) arc welding power source with built-in arc starter / stabilizer. It also has stick welding (SMAW) capability. WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing. • Insulate yourself from work and ground.
B-2 B-2 OPERATION 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. FIGURE B.1 - CONTROL PANEL 1 1. 2. 3. 4. 5. 6. 7. 8. 4 2 POWER SWITCH & LIGHT TIG/STICK SWITCH POLARITY SWITCH CURRENT CONTROL OVER TEMPERATURE LIGHT REMOTE CONTROL CONNECTOR ELECTRODE/ GAS OUTPUT RECEPTACLE WORK CABLE & CLAMP 3 5 7 6 8 1. POWER SWITCH & LIGHT - Turns power on or off to the welder.
B-3 OPERATION 6. REMOTE CONTROL CONNECTOR - This connector provides connection for a remote control. See Remote Control Operation in this section of the manual. B-3 REMOTE CONTROL OPERATION 7. ELECTRODE/GAS OUTPUT RECEPTACLE - This quick connect receptacle provides electrical connection to the electrode holder and cable for Stick welding and a combined electrical and gas connection for the TIG torch when TIG welding.
B-4 B-4 OPERATION 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” 2% thoriated tungsten . WARNING In Stick Mode the output terminal and electrode will be electrically hot whenever the power switch is turned on. WELDING IN STICK MODE 1.
C-1 ACCESSORIES C-1 OPTIONAL EQUIPMENT K964-1 Undercarriage with Pivoting Single Gas Cylinder Platform - This undercarriage features a pivoting platform to easily load and unload the gas cylinder without lifting. It was designed specifically for the SQUARE WAVE TIG 175 PRO power source, and accommodates 7” to 9 1/4” diameter gas cylinders. The undercarriage comes completely assembled and mounts directly to the power source.
D-1 D-1 MAINTENANCE SAFETY PRECAUTIONS WARNING 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. ROUTINE AND PERIODIC MAINTENANCE 1. Disconnect power supply lines to machine before performing periodic maintenance. 2.
E-1 TROUBLESHOOTING E-1 HOW TO USE TROUBLESHOOTING GUIDE WARNING 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.
E-2 E-2 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENTS RECOMMENDED COURSE OF ACTION OUTPUT PROBLEMS Machine is Dead No Output - No Fan 1. Make certain that the input power switch is in the “ON” position and machine is plugged in. 2. Check the input voltage at the machine. Input voltage must match the rating plate and voltage connection. Refer to Reconnect Procedure in the Installation section of this manual. 3.
E-3 E-3 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENTS RECOMMENDED COURSE OF ACTION OUTPUT PROBLEMS Machine regularly over heats - ther- 1. Welding application may mostat opens, Yellow light on front exceed recommended duty panel glows. The fan runs but cycle. Reduce the duty cycle. machine has no output. 2. Dirt and dust may have clogged the cooling channels inside the machine.
E-4 E-4 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENTS RECOMMENDED COURSE OF ACTION TIG MODE PROBLEMS Machine output is intermittently lost. 1. Problem may be caused by high Gas flow and high frequency are frequency interference. Make also interrupted. sure that the machine is grounded properly according to the installation instructions.
E-5 E-5 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENTS RECOMMENDED COURSE OF ACTION TIG WELDING PROBLEMS Black areas along weld bead. 1. Clean any oily or organic contamination from the work piece. 2. Tungsten electrode may be contaminated. Replace or sharpen. 3. Check for contaminated gas or leaks in the gas line, torch, or connections 4. Gas shielding may be insufficient.
E-6 E-6 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENTS RECOMMENDED COURSE OF ACTION TIG WELDING PROBLEMS No high frequency. Machine is in the TIG Mode and has normal output. 1. If the machine location is in a highly dirty environment with conductive contaminants, check and clean the spark gap with a low pressure air stream per the maintenance instructions. No gas flow when Amptrol is activat- 1.
E-7 E-7 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENTS RECOMMENDED COURSE OF ACTION STICK WELDING PROBLEMS Stick electrode “Blasts Off” when arc 1. Weld current may be set too is struck. high for electrode size. Reduce current control setting, or use a larger diameter electrode. Stick electrode “sticks” in the weld puddle. 1. The weld current may be set too Contact your Local Lincoln Authorized low.
G4 216 220 G3 G2 218 G1 217 J2 314 J4 236 238 J5 236A E D F C A B 241 233 275 231 276 243 277 312 244 311 242 C1 E F E F 10K A-B OR PULSER TIG AT MINIMUM - TM AMPTROL D D Y TL1 REMOTE C + THERMAL LIGHT TIG S3 MODE SWITCH ( STICK - CLOSED TIG - OPEN ) R1 RECEPTACLE B C PL1 W REMOTE A B SWITCH POWER CURRENT CONTROL STICK 275 276 241 242 244 243 L1 H1 POWER "ON" LIGHT 277 233 231 TOROID L2 L2 A C2 H3 H2 236B R3 237 C4 236A 115VAC F T3 S L4
J2 314 J4 236 238 J5 J3 313 236A E D F C A B 241 233 275 231 276 243 277 312 244 311 242 CHOKE THERMOSTAT C1 H2 E F E F 10K A-B OR PULSER TIG AT MINIMUM - TM AMPTROL D D TL1 Y REMOTE C + THERMAL LIGHT TIG S3 MODE SWITCH ( STICK - CLOSED TIG - OPEN ) R1 RECEPTACLE B C PL1 W REMOTE A B 242 241 244 243 SWITCH POWER CURRENT CONTROL STICK 275 276 277 233 231 L1 H1 POWER "ON" LIGHT TOROID L2 L2 A C2 H3 236B R3 237 C4 236A 115VAC F T3 S L4
NOTES SQUARE WAVE TIG 175 PRO
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WARNING Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENÇÃO ● Do not touch electrically live parts or ● Keep flammable materials away. ● Wear eye, ear and body protection. ● Mantenga el material combustible ● Protéjase los ojos, los oídos y el electrode with skin or wet clothing. ● Insulate yourself from work and ground. ● No toque las partes o los electrodos bajo carga con la piel o ropa mojada. ● Aislese del trabajo y de la tierra.
● Keep your head out of fumes. ● Use ventilation or exhaust to ● Turn power off before servicing. ● Do not operate with panel open or guards off. remove fumes from breathing zone. ● Los humos fuera de la zona de res- piración. ● Mantenga la cabeza fuera de los humos. Utilice ventilación o aspiración para gases. ● Gardez la tête à l’écart des fumées. ● Utilisez un ventilateur ou un aspira- ● Desconectar el cable de ali- mentación de poder de la máquina antes de iniciar cualquier servicio.
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