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

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.

------------------------------------------------------------------------

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 15’ (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.

-----------------------------------------------------------------------

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.

------------------------------------------------------------------------

PRECISION TIG 275