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Bellfi res
1.7.8 Check overpressure hatches
There are two overpressure hatches in the roof of the combustion chamber (front).
Check that the hatches are loose, by lifting a little and carefully letting
them come down again.
Check if the packing under the hatches is sealed.
Left overpressure hatch is in the correct
position.
Check functioning of overpressure hatch.
Installation instructions
Right overpressure hatch is in the correct
position.
Check packing of overpressure hatch.
If necessary, the packing can be replaced
by lifting the hatch, tilting it and removing
via the opening.
English
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