Helpful Hints; Description Of Protective Devices; Cutting Quality - Cebora PLASMA SOUND PC 50/M Manual De Instrucciones

Fig. 7
A
B
C
D
E
parts are missing, this will interfere with smooth op-
eration of the machine and, especially, jeopardize
operator safety.

6 HELPFUL HINTS

- Should the equipment air contain plenty of moisture
and oil the use of a filter dryer is recommended. This will
prevent excessive oxidation and wearing of consuma-
bles, welding torch damage and reduction in cutting ra-
pidity and quality.
- Air impurities cause oxidation of the electrode and noz-
zle and may make pilot arc start-up more difficult. If this
condition is present, clean the electrode terminal end
and the nozzle interior with thin abrasive paper.
- Make sure that the new electrode and nozzle that are
going to be assembled are perfectly clean and oil-free.
- To avoid welding torch damage always use Cebora
original parts.

7 DESCRIPTION OF PROTECTIVE DEVICES

The equipment comes with different protective devices
highlighted by O, P AND Q LEDS (see table below ER-
ROR CODES).
To assure efficiency of these protective devices:
• Do not remove nor by-pass the protective devices.
• Replace them with original Cebora spare parts.
• Always replace any damaged parts of the machine
or the welding torch with original parts.
• Use torches CEBORA Type CP 70C only.

8 CUTTING QUALITY

There are several parameters and combinations of them
that affect the quality of the cut: This manual shows the
optimal settings for cutting a particular material. How-
ever, due to the installation differences as well as pan-
tographs and the variation of the characteristics of the
cutting materials, the optimal parameters may require
changes with respect to those indicated in the present
cutting tables. The following points may help the user to
make the changes necessary to obtain a good cutting
quality.
The nozzle C must be re-
placed when the central hole
is damaged or wider than
that of a new part. Delays in
replacing the electrode or
nozzle will cause the parts to
overheat, and jeopardize the
life-span of the swirl ring B.
Make sure that the gas noz-
zle holder D is firmly tight-
ened after replacement.
WARNING: screw the noz-
zle holder D onto the welding
torch body only when elec-
trode A, swirl ring B, nozzle
C and nozzle protection E are
assembled. If any of these
As shown in these cutting tables, for each thickness of a
particular material can be used different currents cutting.
If prevail productivity needs, set the maximum allowable
current and the speed in the column V production.
Before making any adjustments, verify that:
• the torch is perpendicular to the cutting plane.
• electrode, nozzle and nozzle protection are not worn
out and that their combination is responsive to the
chosen work.
• the cutting direction, in function of the shape to be
obtained, is correct. Remind that the best side of a
cut is always the right with one respect to the torch
motion direction (the plasma used has diffuser holes
in a clockwise direction).
If you need to cut high thicknesses, particular attention
should be given during the step of lead-out: in particular,
when trying to remove the accumulation of molten mate-
rial around the cutting start hole, so as to avoid double
arc phenomena when the torch comes by again to the
starting point. Moerover, keep the nozzle protection al-
ways clean from molten slag which sticked.
The following table shows some of the most frequent
problems and their solutions.
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