Lincoln Electric 275 manual Work Cable Connection, Stick Electrode Cable Connection

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A-5

INSTALLATION

A-5

 

 

 

1.Connect the terminal marked (below the recon- nect panel) to an earth ground.

2.Connect the input leads to terminals marked L1 (U) and L2 (V) on the reconnect panel. Use a single phase line or one phase of a two or three phase line.

3.On multiple input voltage welders, be sure the reconnect panel is connected for the voltage being supplied to the welder.

CAUTION

Failure to follow these instructions can cause immediate failure of components within the welder.

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Welders are shipped connected for the highest input voltage as listed on the rating plate. To change this connection, designations on the reconnect panel LOW, MID, and HIGH correspond to the name plated input voltages of a triple voltage welder. Dual voltage welders use only LOW and HIGH.

EXAMPLE: On a 208/230/460 volt welder, LOW is 208V, MID is 230V, and HIGH is 460V.

Note: Export model has a voltage range for LOW and MID connections: LOW is 220-230V, MID is 380-400V and High is 415V.

Reconnect the jumper strap to the terminal stud corre- sponding to the input voltage level used. Make sure all connections are tight.

Recommended Cable Sizes for Combined Lengths of Copper Work and Electrode Cables using 75o C Wire:

Machine Rating

0 to 100 Ft.

101 to 200 Ft

201 to 250 Ft

 

 

 

 

275A/40%

#1 (42.4 mm2)

1/0 (53.5 mm2)

2/0 (67.4 mm2)

WORK CABLE CONNECTION

A 15ʼ (2/0) weld cable with clamp is available (K2150-1), or included with the Precision TIG Welding Package model. Otherwise, it is user provided.

With power source off, connect a separate work cable to the 1/2-13 threaded "WORK" stud of the welder, and secure a tight connection with the flange nut provided. The work cable should be routed through the cable strain relief hole provided in the base directly below the welding output terminal.

Note: If the Precision TIG is equipped with an Under- Cooler or Under-Storage unit, the coiled work cable and clamp, or excess work cable length, may be con- veniently stored in the drawer while remaining con- nected.

STICK ELECTRODE CABLE CONNECTION

If manual stick welding is desired, with power source off, connect a stick electrode cable to the 1/2-13 threaded "STICK Electrode" stud of the welder, and secure a tight connection with the flange nut provided. The electrode cable should be routed through the cable strain relief hole provided in the base directly below the welding output terminal.

OUTPUT CABLES, CONNECTIONS AND LIMITATIONS

WARNING

•To avoid being startled by a high frequency shock, keep the TIG torch and cables in good condition

•Turn the power switch of the power source OFF before installing adapters on cable or when con- necting or disconnecting adapter plugs to power source.

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Refer to Figure A.2 for the location of the WORK and STICK terminals, as well as the TIG Torch connection panel.

WARNING

DISCONNECT STICK ELECTRODE WELDING CABLE WHEN TIG WELDING.

EVEN THOUGH HI-FREQ IS NOT APPLIED TO THE PRECISION TIG STICK TERMINAL, IT WILL BE ELECTRICALLY "HOT" TO WORK WHEN TIG WELDING.

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PRECISION TIG 275

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Contents Safety Depends on You Precision TIGSafety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a LʼArcThank You Table of Contents Installation Rated Input Single Phase onlyDuty Cycle-Applications Volts at Rated Amperes Amps Precision TIGRecommended Input Wire and Fuse Sizes Physical DimensionsTemperature Ranges Additional Output CapacitySafety Precautions Input and Grounding Connections Work Cable Connection Stick Electrode Cable ConnectionOutput CABLES, Connections and Limitations TIG Torch Connection Figure A.2Auxiliary Power Connections Figure A.3Robotic Interface Connection Figure A.4Operation Product DescriptionPipe Thawing Welding SparksRecommended Processes and Equipment Recommended ProcessesProcess Limitations Equipment LimitationsControls and Settings Figure B.1 Control PanelOperation TIG Mode Menu Digital DisplayDo not USE 4-STEP if Using AN Amptrol Remote Advanced Panel ControlsOperation Internal SET UP Controls TIG Welding FeaturesStick Welding Features Figure B.3 Figure B.4 TIG Weld Cycle Chart Setup Guidelines for TIG Welding With AN AmptrolFigure B.6 Making a TIG Weld with AN Amptrol Recommended Electrode Amperage Ranges Precision TIGSmaw Process Gtaw ProcessAccessories Factory Installed OptionsField Installed Options Optional EquipmentMaintenance Safety PrecautionsRoutine and Periodic Maintenance Overload ProtectionService Procedures Component AccessSpark GAP Adjustment Meter Calibration Adjustment UNDER-COOLER ServiceTroubleshooting HOW to USE Troubleshooting GuideSymptoms Output ProblemsCourse of Action Meter Problems GAS ProblemsHI-FREQ Problems Preset & Output Control Problems Stick Welding Problems TIG Welding ProblemsTIG Problems Wiring Diagram Wiring Diagram Dimension Print K2619-1 Domestic Precision TIG Precision TIG Aviso DE Warnung
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275 specifications

The Lincoln Electric 275 is a versatile multi-process welding machine that stands out for its advanced features and robust performance. Designed for both novice and experienced welders, the machine offers MIG, TIG, and stick welding capabilities, making it a valuable tool for a variety of applications.

One of the main features of the Lincoln Electric 275 is its power output. With an impressive selection of amperage settings, it can deliver between 25 to 275 amps, making it suitable for both thin and thick materials. This flexibility allows users to work on projects ranging from automotive repairs to industrial fabrication.

The machine utilizes inverter technology, which significantly enhances its efficiency and reduces power consumption. Inverter welders are known for their lightweight design and compact size compared to traditional transformer-based welders. This portability makes the Lincoln Electric 275 easy to transport to job sites, catering to both professional and hobbyist welders who require mobility.

Another defining characteristic of the Lincoln Electric 275 is its easy-to-use interface. The digital display provides clear readings, allowing users to effortlessly adjust settings for optimal performance. Additionally, the machine features a user-friendly control panel with distinct knobs for regulating voltage and wire feed speed, assisting welders in achieving precise welds.

The Lincoln Electric 275 is also equipped with advanced arc technologies. Its built-in arc control enhances the stability of the welding arc, resulting in a smoother, more consistent weld. Furthermore, the machine offers synergic controls that automatically adjust the voltage and wire feed speed based on the selected material and thickness, making the welding process more intuitive and reducing the margin for error.

Durability is another hallmark of the Lincoln Electric 275. Constructed with high-quality materials, the machine is built to withstand the rigors of daily use in demanding environments. Its design also incorporates efficient cooling mechanisms to prevent overheating during prolonged operations, ensuring longevity and reliability.

In conclusion, the Lincoln Electric 275 is a powerful and adaptable welding machine that combines advanced technology with user-friendly features. Its multi-process capabilities, inverter technology, and robust construction make it an essential tool for both professional welders and DIY enthusiasts. Whether tackling intricate projects or heavy-duty tasks, the Lincoln Electric 275 proves to be a reliable choice that does not compromise on performance.
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