Olympus PT-030 Mode D'emploi page 76

Replace consumable products.
The O-ring is a consumable product. Independent of the number of
times the Case is used, it is recommended that the O-ring should
be replaced by a new one at least once a year.
Deterioration of the O-ring is accelerated by the use conditions and
the storage conditions. Replace the O-ring even before a year has
passed if it shows signs of damage, cracking or loss of elasticity.
Note: • Please use original Olympus products for the silicone O-ring
grease, the silica gel, and the O-ring. These consumable
products also can be purchased at an Olympus service
station.
Maintenance of the threaded sections on the
TTL cable and TTL cable connector
If the threaded sections used to connect the TTL cable to the TTL
cable connector are not maintained properly, salt and other seawater
residue may adhere the TTL cable and prevent it from being
disconnected.
After use in seawater, clean off any salt, sand, or other residue as
soon as possible, then dry the equipment thoroughly. Clean the
threaded sections with a cotton swab and apply a thin, uniform layer
of O-ring silicon grease (provided with this case).
Clean and apply O-ring silicon
grease to these sections.
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