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SQUARE WAVE TIG 275
RETURN TO MAIN INDEX
SVM141-A
November, 1998
Square Wave TIG 275
For use with machine code numbers: 10523 & 10525
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However,
your overall safety can be in-
creased 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 im
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i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents The engine exhaust from this product contains are known to the State of California to cause can- chemicals known to the State of California to cause cer, birth defects, and other reproductive harm. cancer, birth defects, or other reproductive harm. The Above For Diesel Engines The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY
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ii ii SAFETY ARC RAYS can burn. ELECTRIC SHOCK can kill. 3.a. The electrode and work (or ground) circuits 4.a. Use a shield with the proper filter and cover are electrically “hot” when the welder is on. plates to protect your eyes from sparks and Do not touch these “hot” parts with your bare the rays of the arc when welding or observing skin or wet clothing. Wear dry, hole-free open arc welding. Headshield and filter lens gloves to insulate hands. should conform to ANSI Z87. I standards. 4.b. Us
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iii iii SAFETY WELDING SPARKS can CYLINDER may explode cause fire or explosion. if damaged. 6.a. Remove fire hazards from the welding area. 7.a.Use only compressed gas cylinders If this is not possible, cover them to prevent containing the correct shielding gas for the the welding sparks from starting a fire. process used and properly operating Remember that welding sparks and hot regulators designed for the gas and materials from welding can easily go through small cracks pressure used. All hos
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iv iv SAFETY PRÉCAUTIONS DE SÛRETÉ 6. Eloigner les matériaux inflammables ou les recouvrir afin de prévenir tout risque d’incendie dû aux étincelles. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce 7. Quand on ne soude pas, poser la pince à une endroit isolé de manuel aussi bien que les précautions de sûreté générales suiv- la masse. Un court-circuit accidental peut provoquer un antes: échauffement et un risqu
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v v MASTER TABLE OF CONTENTS FOR ALL SECTIONS RETURN TO MAIN INDEX Page Safety...................................................................................................................................................................i-iv Installation...............................................................................................................................................Section A Technical Specifications ................................................................
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Section A-1 Section A-1 TABLE OF CONTENTS - INSTALLATION SECTION - Installation.............................................................................................................................Section A Technical Specifications, Square Wave TIG 275 (K1617-1) .......................................................A-2 Safety Precautions......................................................................................................................A-3 Select Suitable Location ......
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A-2 A-2 INSTALLATION TECHNICAL SPECIFICATIONS - Square Wave TIG 275 INPUT - SINGLE PHASE ONLY Input Current at Input Current at Input Current at Idle Current Idle Power Standard Code 40% Duty Cycle 60% Duty Cycle 100% Duty Cycle Voltage Number DC AC DC AC DC AC 95/86/43 130/120/61 76/69/34 106/97/50 57/52/26 82/75/38 5/4/2 900 W Max. 208/230/460/1/60 (K1617-1) 10523 460/575/1/60 (K1617-2) 43/35 61/49 34/28 50/41 26/21 38/31 2/1.5 900 W Max. 10525 RATED OUTPUT & ADDITIONAL OUTPUT CAPACITY Duty
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A-3 A-3 INSTALLATION Read this entire installation section before you TILTING start installation. Each machine must be placed on a secure, level sur- face, either directly or on a recommended undercar- riage. The machine may topple over if this procedure is SAFETY PRECAUTIONS not followed. WARNING ENVIRONMENTAL RATING ELECTRIC SHOCK can kill. The Square Wave TIG 275 power source carries an • Only qualified personnel should per- IP21S environmental rating. It may be used in normal form this insta
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A-4 A-4 INSTALLATION 1. Keep the welder power supply lines as short as INPUT SUPPLY CONNECTIONS possible and enclose as much of them as possible Be sure the voltage, phase, and frequency of the input in rigid metallic conduit or equivalent shielding for power is as specified on the rating plate, located on the a distance of 50 feet (15.2m). There should be rear of the machine. good electrical contact between this conduit and the welder case ground. Both ends of the conduit See Figure A.1 for the
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208V 230V A-5 A-5 INSTALLATION Fuse the input circuit with the recommended super lag INPUT RECONNECT PROCEDURE 1 fuses or delay type circuit breakers. Choose an input On multiple input voltage welders, be sure the recon- and grounding wire size according to local or national nect panel is connected per the following instructions- codes or refer to the Technical Specifications page at for the voltage being supplied to the welder. the beginning of this section. Using fuses or circuit breakers sm
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A-6 A-6 INSTALLATION Assemble the correct Twist-Mate-adapter plug to the USER SUPPLIED CONNECTORS work cable as follows: The Square Wave TIG 275 should be permanently 1. Skin the cable jacket to 1.00 in (25.4 mm) for a #2 wired into the power system. No plugs or connectors thru 2/0 (35 thru 70 mm2) cable. Skin the cable are necessary. jacket to 1.50 in (38.1 mm) for a 2/0 thru 3/0 (70 thru 95 mm2) cable. OUTPUT CONNECTIONS 2. If necessary, trim the cable end of the rubber boot to WARNING mat
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A-7 A-7 INSTALLATION TIG TORCH CONNECTION WARNING The Twist-Mate connection allows fast and reliable TIG torch attachment to the electrode terminal of the CYLINDER could explode if Square Wave TIG 275 welding power supply. Twist- damaged. Mate TIG adapters are made of brass, combining high electrical conductivity with mechanical strength. They are available in several sizes and styles to accommo- • Keep cylinder upright and chained to a date a wide selection of gas and water-cooled TIG support.
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A-8 A-8 INSTALLATION TWIST-MATE ADAPTER FOR LA-9 TWIST-MATE ADAPTER FOR LW-18 and LA-17 TIG TORCH and LW-20 TIG TORCH The Twist-Mate connection allows fast and reliable TIG The Twist-Mate connection allows fast and reliable TIG torch connections to the electrode terminal of the torch connections to the electrode terminal of the Square Wave TIG 275. The Twist-Mate adapter, strain Square Wave TIG 275. The Twist-Mate adapter and relief boot and retaining compound needed to connect strain relief boo
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A-9 A-9 INSTALLATION 4. Hold the TIG adapter, with cables and hoses installed, STICK ELECTRODE CABLE firmly in place by securing it into the Twist-Mate recep- CONNECTION tacle on the power source or into a padded vise. Apply a thin film of lubricant to the boot’s lead in The Twist-Mate connection allows fast and reliable stick chamfer area. Also apply lubricant to the lead in electrode attachment to the electrode terminal of the chamfer and 2” diameter on the TIG adapter. Next Square Wave TIG
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A-10 A-10 NOTES SQUARE WAVE TIG 275 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
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Section B-1 Section B-1 TABLE OF CONTENTS - OPERATION SECTION - Operation...............................................................................................................................Section B Safety Precautions......................................................................................................................B-2 General Description ....................................................................................................................B-3 Recommende
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B-2 B-2 OPERATION 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. • Read and follow “Electric Shock Warnings” in the Safety section if welding must be per- formed under electrically hazardous condi- tions such as welding in wet areas or on or in the workpiece. FUMES
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B-3 B-3 OPERATION machine. A build up of these materials can cause GENERAL DESCRIPTION excessive operating temperatures and nuisance shut The Square Wave TIG 275 is a constant current, single downs. range square wave AC/DC TIG (GTAW) arc welding • 2-STEP/4-STEP TIG/STICK mode control switch. 4- power source with built-in high frequency stabilization. STEP mode requires the use of an optional Arc Start It also has stick (SMAW) capability. A TIG Pulser Kit, Switch. This welding mode reduces f
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B-4 B-4 OPERATION • Provides excellent arc starting and stability through- WELDING CAPABILITY out the machines wide current range (5 to 315 Amps) The Square Wave TIG 275 is rated at 275 amps, 31 to handle the vast majority of TIG welding applica- volts, at 40% duty cycle on a ten minute basis for DC tions. TIG and AC/DC stick processes. It is capable of high- • Simple output current dial allows the user to preset er duty cycles at lower output currents. If the duty the peak current within the
