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Maintenance (expert)
Cleaning and maintenance
Check the positions of the flaps and position
switch
Screws that actuate the position switches are located
on the drive wheels of the flaps. When switched off, the
bypass is opened and the flaps in the inlet and outlet
opening are closed. Check the position of the flaps
based on the position of the drive wheels.
Fig. 2-26: Position of the flaps when switched off
When in operation, the bypass flap is closed and
the flaps in the inlet and outlet opening are open.
Fig. 2-27: Position of the flaps during operation
Check whether the position switches are actuated.
Fig. 2-28: Position switch
Check the seals on the flaps
Remove both maintenance covers from the bypass.
Fig. 2-29: Maintenance cover
Inspect the integrity of the seals on the flaps and
replace if necessary. If cracks or other flaws are
noticeable, they must be replaced.
Fig. 2-30: Check the seals on the flaps