Lincoln Electric INVERTEC PC208 CE Operator's Manual page 11


PC210:
"In Compr" operating mode: same as PC208.
"Ext Air" operating mode:
energize an electrovalve (solenoid valve). This valve
lets the air flow during the cutting and the post-flow
stages.
The design concept at the basis of these power sources is
to have available a current which remains constant at the
set value, independently from the length of the plasma
arc.
When preparing to cut, make sure you have all materials
needed to complete the job and have taken all safety
precautions. Install the machine as instructed in this
manual and remember to attach the work clamp to the
work piece.

Turn ON the Power Switch [H] placed on the back of
the machine; the LED [B] on the front panel will turn
ON. The unit is now ready to operate.

Check that the primary air is available through the Air
Purge function [A].

Set the desired current value with the Output Current
[A] knob.
To start the cutting process just press the torch button,
making sure you are not aiming the torch air blow towards
people or foreign objects. During the cutting process it is
possible to hold the torch away from the work piece for an
extended period of time.
To piercing the work piece, lower the
torch onto the metal at a 30° angle
away from the operator. This will blow
the dross (melted metal) away from the
torch tip.
Slowly rotate the torch to the vertical
position as the arc becomes deeper.
Once the work piece is pierced normal
cutting can occur.
Keep moving while cutting and
cut at a steady speed so that
the arc leg is 10° to 20° behind
the travel direction. Use a 5°
to 15° leading angle in the
direction of the cut.
Once the cutting process is
terminated releasing off the
torch button will cause the
plasma arc to be turned off; the
air flow will continue
approximately 20sec. (post-flow) to allow the cooling
down of the torch.
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the torch button
for
Maintenance
For any maintenance
recommended to contact the nearest technical service
center or Lincoln Electric.
performed by unauthorized service centers or personnel
will null and void the manufacturers warranty.
The frequency of the maintenance operations may vary in
accordance with the working environment. Any noticeable
damage should be reported immediately.

Check cables and connections integrity. Replace, if
necessary.

Regularly clean the torch head, check its consumables
and if necessary replace them.
Refer to the torch instructions before changing or
servicing the torch.

Keep clean the machine. Use a soft dry cloth to clean
the enclosing case, especially the airflow inlet / outlet
louvers.

Regularly clean the compressor air inlet filter.
Do not open this machine and do not introduce anything
into its openings. Power supply must be disconnected
from the machine before maintenance and service. After
each repair, perform proper tests to check safety
requirements.
9
WARNING
or repair operations
Maintenance or repairs
WARNING
WARNING
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it is