: dust box
5. Remove the boat stop (9) out of the combustion tube.
6. Unscrew the screws (13) and remove the complete dust box assembly (14).
7. Unscrew the screws (2) and remove the front assembly (3).
8. Remove the O-ring (6) and the safety spring (7).
9. Pull the dust box (D) together with the combustion tube (6) out of the rear of the furnace.
10. Remove the old combustion tube (8), install the new one.
: Front view – combustion tube with boat stop
NOTICE
Slide the new combustion tube very slowly and perfectly horizontal into the furnace, otherwise
the heating elements may break.
11. Slide the boat stop (9) into the combustion tube (8) and ensure that it is positioned according
to this drawing, (furnace rear-side).
12. Reinstall furnace in reverse order.
NOTICE