Red-D-Arc EXTREME 360 Operator's Manual download pdf (Page 19)

LN-25

B-8

ARC RAYS can burn.

• Do not touch metal por-

tions of the LN-25 lead

Clip when welding power

source is on.

OPERATION

CYLINDER may explode if

damaged.

• Keep cylinder upright and

chained to support.

• Keep cylinder away from

areas where it may be dam-

aged.

• Never lift welder with cylin-

der attached

• Never allow welding elec-

trode to touch cylinder.

• Keep cylinder away from

welding or other live electri-

cal circuits.

g. Be sure the proper contact tip for the wire size

being used is in the gun, and the gun is safe

from work contact. (Use the LN-25 insulated

gun holder.)

h. Turn on the welding power source, as well as the

shielding gas supply (if used).

• Unless an optional output control or

internal contactor is used, the

electrode is electrically “hot” when the

power source is on. The gun trigger

controls wire feed only.

a. Cut the electrode within approximately

⁄8” of the

end of the contact tip for solid wire and within

approximately

⁄4” of the extension guide for cored

wire.

b. Position electrode over joint. End of electrode

should be slightly off the work.

WARNING

OPEN ARC WELDING WITH A

CONSTANT CURRENT POWER

SOURCE

The LN-25 should be used with a constant current

machine only upon non-critical weldments and after

testing is done to assure quality is adequate for the

application.

PROCEDURE AT END OF COIL

When the wire on the reel is used up, the following

procedure is to be followed for removing the old wire

from the gun cable and loading a new reel.

a. Shut off power source if a Remote Output

Control Option or internal contactor is not used.

b. Cut the end of the electrode off at the gun end.

Do not break it off by hand since this puts a slight

bend in the wire and makes it difficult or

impossible to pull it back through the nozzle.

c. Uncouple the gun conductor cable from

the LN-25.

d. Lay the cable out straight.

e. Using pliers to grip the wire, pull it out of the

cable from the connector end. Do not pull it from

the gun end.

f. Put the conductor cable back on wire drive unit

after the electrode has been removed.

g. Load a new coil of wire and feed it through the

cable as described in Loading Electrode Section.

c. Lower welding helmet, close gun trigger, and

begin welding. Hold the gun so the contact tip to

work distance gives the correct electrical stick

out as required for the procedure being used.

NOTE: If the arc voltage is not within the proper

procedure range adjust the power source output

control. (The CC mode WIRE SPEED setting should

not be changed from the preset procedure value for

the proper arc voltage.)

d. To stop welding, release the gun trigger and

then pull the gun away from the work. Store the

gun in the LN-25 insulated gun holder when

not welding.

WELDING

WARNING

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Red-D-Arc EXTREME 360 Operator's Manual Page 19

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