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ALFA IN a.s
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www.alfain.eu
3
NOTE
5. At low air pressure (below 3,5 bar) LED
A8
lights on the control panel and
hang further action.
6. If the machine gets overheated during cutting, the LED on the control panel
A7
lights and hangs other activities of the machine.
7.
Disconnect the machine from the mains before replacing the torch
consumable parts.
8.
Unplug the machine from the mains before any intervention inside the
machine.
9. PEGAS 160 PLASMA may not be directly connected to the pressure of
higher than 8.5 Mpa or to pressurized cylinders! Connection to such
resources is only possible through a suitable pressure reducing valve, which
is tested on the corresponding input pressure and flow.
10. Imperfect capture of condensate would cause its elimination in the area
of the cutting tip and it would prevent ignition of the pilot arc.
7.7 SOURCES OF POOR QUALITY CUTS
7.7.1 Shallow penetration of the cut
1. The cutting speed is too high. Make sure the slope of the cutting arc does
not exceed about 15
° (see Figure 7).
2. High wear of the cutting tip or electrode (see Figure 8)
3. Too large thickness of material and not adequately chosen value of current
and diameter of the cutting tip.
4. Bad contact between the work lead clamps and material.
7.7.2
Cutting arc is unstable, goes off and "shoots"
1. Worn out cutting tip or electrode
2.
High pressure
3.
Impurities in the pressure air
4.
Not captured water condensate
7.7.3 Conical cut
1. If there is a false cut (see Figure 9) turn off the machine, release the shield
cup and rotate the cutting tip about 1/4 and again try to cut.
2. Damaged cutting tip and electrode
3. The position of the torch is not perpendicular to the material
4. Too large distance from the cutting tip to the material.
