page 54 of 91 USB-QFLCII-14804/0
Inspection lid opening
Please proceed as follows:
Ensure that the system is safely shut down .
a) Turn locks (fasteners) counter-clockwise to unlock the inspection lid.
b) The inspection lid can now be opened.
-
For inlet isolation device sizes up to and including DN 560, open the
inspection lid until the maximum opening angle has been reached
(opening angle > 120°).
-
For inlet isolation devices larger than DN 560, the inspection lid should be
opened wide enough so that the latch pin snaps into the maintenance
safety latch and the inspection lid is fixed into the open position.
Inspection lid
Locks
Flap stopper
Maintenance
safety latch for DN 630
and larger
Latch pin
Gas spring lift assist
locks
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