Gouging Guard And Stand-Off Guide; Loose Consumables - ESAB PT-25 Manuel D'instruction

SECTION 3
NOZZLE 50 AMP
100 AMP - 0558000727 (21597)
150 AMP - 0558000728 (21598)
GOUGING - 0558000729 (21599)
HEAT SHIELD -
0558000730 (21660)
GOUGING GUARD - 0558000737 (21656)
IMPORTANT - Do not twist the gouging guard or stand-off
guide in the counter-clockwise direction as this will loosen
the heat shield.
Follow all instructions in the appropriate booklet packed
with your power source package. Do NOT install or attempt
to operate this torch without following these instructions.
The torch front end design contains components which,
working together with power source circuitry, prevent the
torch from being accidently energized when the heat shield
is removed and the torch switch is closed.
3.6 GOUGING GUARD & STAND-OFF GUIDE
If desired, a metal gouging guard is available. It is used dur-
ing plasma gouging and protects the torch by reflecting
radiant heat and spatter produced during gouging.
The stand-off guide provides the operator with the ability
to hold a consistent stand-off by keeping the guide's feet
in contact with the work.
Install the guard or guide by sliding it onto the heatshield
(heatshield should be in place on torch) with a clockwise
twisting motion. Always install or adjust the guard or guide
on the shield with a clockwise twisting motion to prevent
loosening of the shield.
If the fit of the guard or guide is too tight on the shield, open
the slot in the shield by twisting with a large flat blade screw
driver. If the fit is too loose, close the slot by squeezing the
guard or guide in a bench vise.
- 0558000726 (21596)
Figure 3-3, Assembly of PT-25 Front End Parts
0-RING - 0558000734 (344019)
(Supplied With Torch Head)
ELECTRODE HOLDER
ASSEMBLY
0558000731 (21657)
ELECTRODE
SWIRL BAFFLE -
0558001457
STAND-OFF GUIDE - 0558000736 (21943)

3.7 LOOSE CONSUMABLES

Proper performance of the torch will rely on proper and
secured installation of the front end consumable parts, par-
ticularly the electrode holder, electrode, and heat shield.
1. Make sure that the electrode holder is fully threaded
into the torch head and securely tightened using a
7/16" (11mm) nut driver.
Fully tighten the electrode onto the electrode holder
using the thumb and forefinger (wrenches or pliers are
not required). A correctly tightened electrode will come
loose with a "snapping" action when it is removed using
the thumb and forefinger.
2. Make sure that the nozzle and swirl baffle are securely
installed by fully tightening the heat shield. "Fully"
means at least 5mm of rotation after the swirl baffle
and nozzle make firm contact with each other. See
Subsection 3.5 and Figure 3.4.
Improperly installed front end parts will cause gas leaks
which may cause poor cutting or gouging performance and
may cause damage to the torch itself from internal arcing.
87
INSTALLATION
AIR, N , N / H - 0558000732 (21595)
2 2 2
H-35 (Ar / H ) - 0558000733 (21780)
2