FujiFilm WP-FXF500 Mode D'emploi page 42

Preliminary check of the case
6
When all is well, use a clean fingertip to apply the special silicone
grease. And then spread it on the surface of the O-ring until it is
completely covered.
7
Close the waterproof case.
8
Dip the empty waterproof case into a water tank or a bathtub and
check for water leaks. For how to check it, see page 13.
If a water leak is detected ...
➀
Immediately take the waterproof case out of the water and dry it on the outside.
➁
Make sure that there are no cracks in the waterproof case body. Check the O-
ring for attached foreign particles, flaws, cracks, odd shape, or twisting, and for
any foreign particles in the O-ring groove.
➂
When all is well, start over from the procedure on page 8.
If you find something wrong with the waterproof case, immediately stop using it and
contact your FUJIFILM dealer.
O-ring
EN-10
Only use the special silicone grease
provided.
After applying the grease, check that
there is no sand or other substances
attached to the O-ring.
➀
Close the waterproof case and turn the
open/close knob in the direction of the
"CLOSE" arrow to seal it.
➁
Lock the open/close knob.
When closing the waterproof case, take
care not to catch your fingers or palm in
the waterproof case.