Prince™ XL/Spool Gun - Owner's Manual Page 16
Section 16
Operation
16.1 General
The Prince™XL torch was specifically designed to operate as both a push-
pull gun and spool gun. The 24 volt DC torch motor is controlled by a 3-3/4
turn potentiometer recessed in the pistol grip. The torch trigger is so de-
signed that when it is partially depressed, gas flow starts via the valve located
in the torch body - prior to ignition of the arc. When the trigger is partially
released after welding (extinguishing the arc), gas flow continues until the
trigger is fully released. Built-in pre and post gas flow. The gas cups and
contact tips used on the Prince™XL air cooled barrel are the same as those
used on the Cobra Gooseneck. The drive and idler rolls are also the same as
on the Cobra Gooseneck. The gas cups and contact tips used on the
Prince™XL water cooled barrel are the same as those used on the King
Cobra torch. The modular design allows parts to be replaced in sub assem-
blies for minimum spare parts inventory and less down time.
16.2 Barrels
16.2.1 Air Cooled
The Prince™XL air cooled systems (213-xxx and 216-xxx) come standard
with a straight barrel. An optional curved air cooled barrel assembly (P/N
003-1986) is also available as a spare part. The end of the air cooled barrels
have an adapter (P/N 003-2593) that is easily replaced if the cup threads
become damaged. The adapter is threaded onto the barrel. The barrel
assembly locks to the Prince™XL body using the patented EZ Lock™ sys-
tem.
16.2.2 Water Cooled
The Prince™XL water cooled systems (212-xxx) come standard with a
straight water cooled barrel assembly. An optional curved water cooled barrel
assembly
(P/N 003-1987) is also available as a spare part.
16.2.3 Barrel Removal and installation
To remove a barrel assembly, loosen the patented EZ Lock™ Taper lock nut
assy P/N 003-2572 (see page 21, item 1) 3/4 to 1 turn. This will push barrel
away from the body far enough so that it may be pulled out of the body.
To replace a barrel assembly, take care not to damage the “O” rings when
inserting into the body. Open the drive and idler roll door and seat the barrel
assembly until the inlet guide is almost touching the drive and idler roll and
the rear face of the barrel is flush with the aluminum body block (see dia-
gram). Tighten taper lock nut assembly firmly so that barrel cannot rotate.
16.2.4 Barrel Rotation
To rotate a barrel assembly, loosen the patented EZ Lock™ Taper lock nut
assembly no more than 1 turn. Rotate barrel to the position of your choice
and retighten taper lock nut assembly firmly so that the barrel cannot rotate.
WARNING: Do not attempt to weld without the barrel being tightly
secured in the torch body, or damage to the barrel or body may result.
