page 60 of 91 USB-QFLCII-14804/0
Locking mechanism
cover
Screws
d) Push the locking mechanism locking pin downwards and carefully lift the flap
blade.
CAUTION
Crushing hazard between locking lever and locking pin
Carefully lift the flap blade. Release the locking pin so that it is pressed down by the
locking lever.
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Flap
Locking lever
2.
Locking pin
1.
3.
d)
Check
the ease of movement during lifting and lowering of the flap blade. If the
flap blade is difficult to move for a reason other than the weight, inspect and, if
needed, replace the inlet isolation device bearings.
e) Carefully close the flap blade after inspection/maintenance/service is
complete
.
Don't let the flap blade fall into the closed position—manually lower it slowly.
WARNING
Danger: there is a risk of harm to extremities from a falling/closing flap
blade!
Inspect
the
flap blade prior to closing and control the lowering of the flap blade to
minimize the risk of harm!
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f) Re-attach the cover of the locking mechanism with the correct screws.
g) Close the inspection lid (see Section 9.4, Inspection lid opening and closing)
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