Lincoln Electric IM609-B manual Supply Connections, Figure A.1

A-4 INSTALLATION A-4

2. Keep the work and electrode leads as short as pos-

sible and as close together as possible. Lengths

should not exceed 25 ft (7.6m). Tape the leads

together when practical.

3. Be sure the torch and work cable rubber coverings

are free of cuts and cracks that allow high frequen-

cy leakage. Cables with high natural rubber content,

such as Lincoln Stable-Arc® better resist high fre-

quency leakage than neoprene and other synthetic

rubber insulated cables.

SUPPLY CONNECTIONS

Be sure the voltage, phase, and frequency of the input power is as specified on the rating plate, located on the rear of the machine.

See Figure A.1 for the location of the rating plate, the entry hole, and the reconnect panel.

FIGURE A.1

4. Keep the torch in good repair and all connections

tight to reduce high frequency leakage.

5. The work piece must be connected to an earth

ground close to the work clamp, using one of the fol-

lowing methods:

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 ground- ing cable should be as short as possible using cable of the same size as the work cable, or larger. Grounding to the building frame electrical conduit or a long pipe system can result in re-radiation, effectively making these members radiating antennas. (This is not recom- mended).

1

2

1.Input Entry

2.Rating Plate

3.115V Receptacle & Breaker

(60 HZ. Machines only)

	5
3	4

4.220V Receptacle & Breaker (50/60 HZ. Machines Only.)

5.Gas Input Fitting

6.Keep all access panels and covers securely in place.

7.All electrical conductors within 50 ft (15.2m) of the welder should be enclosed in grounded rigid metal- lic conduit or equivalent shielding. Flexible helically- wrapped metallic conduit is generally not suitable.

8.When the welder is enclosed in a metal building, the metal building should be connected to several good earth driven electrical grounds (as in 5 (b) above) around the periphery of the building.

Failure to observe these recommended installation procedures can cause radio or TV and electronic equipment interference problems and result in unsatis- factory welding performance resulting from lost high frequency power.

Remove the right case side to reveal the reconnect panel. Welder supply line entry provision is in the case rear panel. Entry is through a 1.4 inch (36 mm) diam- eter hole in the case back.1

All connections should be made in accordance with all local codes and national electrical codes. Installation by a qualified electrician is recommended.

1.Connect the terminal marked (at the base of the welder below the reconnect 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.

1On European, 50/60 Hz. models, entry is through a 1.75 inch (46mm) diam- eter hole. A reducing washer and plastic strain relief good for 18.0 to 25.4 mm (.709 to 1.00 inch) cords is provided. For larger input conductors a customer supplied plastic strain relief should be used.

SQUARE WAVE TIG 275