Lincoln Electric NERTAJET CPM 250, Инструкция по технике безопасности, эксплуатации и обслуживанию

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8695 9064 / L
J-48
CPM 250-300-720-900
J - RECOMMENDATIONS FOR USE
DEFECTS SOLUTIONS
Pilot arcing difficult - Check the type and pressure of pilot gas (argon) according to the
scales.
- Check that there is sparking of the H.F between the electrode and
the nozzle. For this, move to H.F test position (centring)
In this configuration, there is pilot gas flow.
- Check the gas conduit over the entire circuit : to do this, place a
blocked nozzle on the torch and carry out a gas test : Check :
- that the pressure displayed at the pressure-reducing valve does not
move after having closed the gas cylinder.
if the pressure drops

.leak
Spark-extinction at the time of transfer. - Reduce the power run-up time-delay.
- Check the cutting gas pressures.
NOTE :
Be careful of the pressure increase of the pressure-reducing
valves ; be careful not to move the torch too far away at the
time of the transfer : risk of arc breaking.
Difficult transfer - Check the connection of the electric wire running to the part
(ground wire).
- Check the electrode circuit, especially the connections to the
bundle connections.
- Check the condition of the cone nozzle : it is to be changed if the
cutting channel is splayed downwards.
- In the case of water vortex fitting, check the assembly of the water
vortex nozzle : flow of water in shape of umbrella.