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- Unscrew the 8 closing nuts and open the furnace door.
These 3 screws must not be unfastened in any event.
- Brush out the inside of the furnace.
- Clean the soot accumulated in the furnace and lower flue ways
with a vacuum cleaner.
- Close the lower sweeping doors.
- Put back the front casing panels by reversing the removal
procedure.
See chapter "Chemical sweeping" - See page 22.
18/03/2016 - 300020192-02
Remove the lower rear panels.
Remove the lower rear crosspiece.
Remove the lower insulating material on the rear.
- Unfasten the wing nuts and remove the lower left and right-hand
sweeping doors.
- Remove any soot deposit with a scraper or a vacuum cleaner.
- Open the lower sweeping cover of the flue gas box (2 H 10 nuts +
Ø 10 washers).
- Remove the soot.
- Put back the sweeping cover and doors.
- Put back the lower insulating material, the crosspiece and panels
by reversing the removal procedure.
PK 550
7. Checking and maintenance
21
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