Cebora PGC-H2 Instruction Manual page 18

For all the component parts:
• Clean the inside with compressed air (clean, dry and oil free) to eliminate any dust build up. If possible use a vacuum
cleaner;
• Make sure the power connections are tight and are not overheating.
For each component part:
Component Maintenance operations
Power source Clean the radiators of the IGBT modules 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.
Gas console Check the internal pneumatic circuit for cracks or leaks.
Valve console Check the internal pneumatic circuit for leaks.
Make sure the spark-gap is not excessively blackened and that the gap distance is correct;
Ignition unit
Check the inner hydraulic circuit for cracks or leaks.
Also periodically check the system earth connection. In particular, following the diagram in fig.24, make sure all leads
are perfectly tight between screw and nut.
5 APPENDIX
5�1 Grounding schematic of the cutting plant
Use ground cables with cross-section equal or higher than 16 mm2.
Art. 470-466
Art. 968
Power cord
ground
18/18
Art. 1166....
Art. 1189....
Chocke
Art. 1159....
Art. 469
Copper
bar
Fig. 24
Art. 464
Art. 1224-1225