1. Use your key to open the access door
to the manual override thumbwheel.
2. Ensure that the gearbox is engaged by
turning the thumbwheel anti-clockwise
before fitting the Thumbwheel
Guard. It must not be possible to
move the gate by hand.
3. Fitting the Thumbwheel Guard
3. Place the Thumbwheel Guard over
the manual release thumbwheel.
4. Close and lock the access door again.
5. Take care when closing the camlock
cover so as to prevent the ingress of
dirt.
page 3
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