Olympus 170 Instructions Manual page 60

60
Do not touch the rubber gasket with
excessive force. Do not remove the
gaskets. The gaskets in your camera
should be replaced after
approximately three years to insure
consistently good weatherproof
performance. They may need more
frequent replacement depending on
use and wear. If the gaskets are
damaged or need replacement,
contact your nearest Olympus service
center.
If you are taking pictures at the beach,
you need to avoid getting sand on or
inside of your camera. Transport your
camera in its own case. Do not wrap
your camera up with beach towels and
carry it in your beach bag.