Lincoln-electric IM609 SQUARE WAVE TIG 275 User Manual

Square Wave TIG 275OPERATOR’S MANUALIM609-BMay, 2001Safety Depends on YouLincoln arc welding and cuttingequipment is designed and builtwith safety in

A-3INSTALLATION SQUARE WAVE TIG 275A-3ELECTRIC SHOCK can kill.•Only qualified personnel should perform this installation.•Turn the input power OFF a

A-4INSTALLATION SQUARE WAVE TIG 275A-42. Keep the work and electrode leads as short as pos-sible and as close together as possible. Lengthsshould no

A-5INSTALLATION SQUARE WAVE TIG 275A-5Fuse the input circuit with the recommended super lagfuses or delay type1circuit breakers. Choose an inputand

A-6INSTALLATION SQUARE WAVE TIG 275A-6575V460VWARNING:Powered by high voltage which can kill. Turn off all inputConnect the input power leads to th

A-7INSTALLATION SQUARE WAVE TIG 275A-7Designations on the reconnect panel LOW, MID, andHIGH correspond to the nameplated input voltages ofa triple

A-8INSTALLATION SQUARE WAVE TIG 275A-8TIG TORCH CONNECTIONThe Twist-Mate connection allows fast and reliable TIGtorch attachment to the electrode te

A-9INSTALLATION SQUARE WAVE TIG 275A-9TWIST-MATE ADAPTER FOR LA-9and LA-17 TIG TORCHThe Twist-Mate connection allows fast and reliable TIGtorch conn

A-10INSTALLATION SQUARE WAVE TIG 275A-104. Hold the TIG adapter, with cables and hosesinstalled, firmly in place by securing it into the Twist-Mate

B-1OPERATIONB-1SQUARE WAVE TIG 275ELECTRIC SHOCKcan kill.• Do not touch electrically live parts orelectrode with skin or wet clothing.•Insulate yourse

B-2OPERATIONB-2SQUARE WAVE TIG 2752AGRAPHIC SYMBOLS THAT APPEAR ONTHIS MACHINE OR IN THIS MANUAL&&POWER SWITCHSYMBOLMEANINGONOUTPUT CONTROLSYM

FOR ENGINEpowered equipment.1.a. Turn the engine off before troubleshooting and maintenancework unless the maintenance work requires it to be running.

B-3OPERATIONB-3SQUARE WAVE TIG 275GRAPHIC SYMBOLS THAT APPEAR ONTHIS MACHINE OR IN THIS MANUALOPTIONAL WATER SOLENOID CONNECTIONSSYMBOLMEANINGWATER (C

B-4OPERATIONB-4GENERAL DESCRIPTIONThe Square Wave TIG 275 is a constant current, singlerange square wave AC/DC TIG (GTAW) arc weldingpower source with

B-5OPERATIONB-5• DC+/AC/DC- Polarity Switch allows the welder tochange polarity without reconnecting leads.• Provides excellent arc starting and stabi

B-6OPERATIONB-61. Current Control - This knob is used to setthe welding current from 5 to 315 amps. Read thecomplete Operating Instructions

B-7OPERATIONB-76. Trimmer Potentiometers - Allows the meters tobe calibrated in the field.7. Digital Ammeter - The ammeter displays actualwelding curr

B-8OPERATIONB-8SQUARE WAVE TIG 275(1) When used with argon gas. The current ranges shown must be reduced when using argon/helium orpure helium shieldi

B-9OPERATIONB-98. Set the Post Flow Time with the post flow knob.Post flow control knob adjusts the time that theshielding gas flows (and cooling wate

B-10OPERATIONB-1010. With the torch held safely away from everything,press the Arc Start Switch and set the gas flowmeter. Release the switch. The wel

B-11OPERATIONB-11STICK WELDING1. Turn the welder “ON”.The digital ammeter/voltmeterwill illuminate when the power is on.2. Set the Mode Switch to “STI

C-1ACCESSORIESC-1ACCESSORIES INCLUDED WITHMACHINEK852-50 - Twist Mate Cable Plug for #2 to #1 WorkLead.K1622-1 - Twist Mate Adapter Kit for LA9 and LA

iiSAFETYiiARC RAYS can burn.4.a. Use a shield with the proper filter and coverplates to protect your eyes from sparks andthe rays of the arc when weld

D-1MAINTENANCED-1SQUARE WAVE TIG 275ELECTRIC SHOCK can kill.• Only qualified personnel shouldperform this maintenance.• Turn the input power OFF at th

D-2MAINTENANCED-2COMPONENT LOCATION AND ACCESSControl PC Board:Remove the left case side. Use a 3/8" Nut Driver orother suitable tool.Note: The C

E-1TROUBLESHOOTINGE-1SQUARE WAVE TIG 275If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,

E-2TROUBLESHOOTINGE-2SQUARE WAVE TIG 275Observe all Safety Guidelines detailed throughout this manualIf for any reason you do not understand the test

E-3TROUBLESHOOTINGE-3SQUARE WAVE TIG 275Observe all Safety Guidelines detailed throughout this manualIf for any reason you do not understand the test

E-4TROUBLESHOOTINGE-4SQUARE WAVE TIG 275Observe all Safety Guidelines detailed throughout this manualIf for any reason you do not understand the test

E-5TROUBLESHOOTINGE-5SQUARE WAVE TIG 275Observe all Safety Guidelines detailed throughout this manualIf for any reason you do not understand the test

E-6TROUBLESHOOTINGE-6SQUARE WAVE TIG 275Observe all Safety Guidelines detailed throughout this manualIf for any reason you do not understand the test

E-7TROUBLESHOOTINGE-7SQUARE WAVE TIG 275If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,

F-1WIRING DIAGRAMF-1SQUARE WAVE TIG 275B 232R 222(U)(V)L1255254L1L2C1RECEPTACLEG1G2SCR42462 STEP TIGBRASS115VAC251TERMINAL243248H4POSDFRONT GANGELECTR

FOR ELECTRICALLYpowered equipment.8.a. Turn off input power using the disconnectswitch at the fuse box before working onthe equipment.8.b. Install equ

F-2WIRING DIAGRAMF-2SQUARE WAVE TIG 275380 VOLT CONNECTION312MODE SWITCHSTICK243248AT MINIMUMDF260N.C.N.A.N.B.50BCPRIMARYTOROIDTHERMOSTATH5313255217G3

F-3WIRING DIAGRAMF-3SQUARE WAVE TIG 275B 232R1R2R3T3R 222POSTFLOW CONTROL POTENTIOMETER 10KPHASE SHIFT RESISTOR 200/100(U)(V)L1255254L1L2C1RECONNECT P

DIMENSION PRINTSQUARE WAVE TIG 27520.0040.654.0024.063.57.7115.3728.003.5717.50AM191189.5719.1522.8933.4027.65F-4F-4

Now Available...12th EditionThe Procedure Handbook of Arc WeldingWith over 500,000 copies of previous editions publishedsince 1933, the Procedure Hand

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ivSAFETYivPRÉCAUTIONS DE SÛRETÉPour votre propre protection lire et observer toutes les instructionset les précautions de sûreté specifiques qui parra

Thank Youfor selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product •••as much p

viviTABLE OF CONTENTSPageInstallation ...Section A

A-1INSTALLATION SQUARE WAVE TIG 275A-1TECHNICAL SPECIFICATIONS - Square Wave TIG 275 (K1617-1, and -2)For AC/DC Stick, DC TIG and Balanced AC TIGWel

A-2INSTALLATION SQUARE WAVE TIG 275A-2TECHNICAL SPECIFICATIONS - Square Wave TIG 275 (K1618-1)For AC/DC Stick, DC TIG and Balanced AC TIGWelding at