Cebora Plasma PROF 166 HQC Instruction Manual page 66

For each component part:
Component Maintenance operations
Clean the radiators of the IGBT modules
Power source with compressed air, directing the jet of
air on them .
Clean the radiator with compressed air,
directing the air jet towards it
Cooling unit
Check the internal hydraulic circuit for
cracks or leaks.
Check the internal pneumatic circuit for
Gas console
cracks or leaks.
Check the internal pneumatic circuit for
Valve console
leaks.
Make sure the spark-gap is not excessi-
vely blackened and that the gap distan-
ce is correct;
Ignition unit
Check the inner hydraulic circuit for
cracks or leaks.
Also periodically check the system earth connection. In par-
ticular, following the diagram in fig.24, make sure all leads are
perfectly tight between screw and nut.
66