Olympus PT-024 - Manual (Page 34)

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(7) Throwing the Case from a boat into the water, jumping with the Case
into the water, or other sudden application of strong forces onto the
Case. When entering the water, hand the Case over quietly or avoid
impacts in other ways.
Q9 : What are the important points for O-ring maintenance?
A9 : Please observe the following items.
(1) Never use alcohol, thinner, benzene or similar organic solvents or
chemical detergents to clean the O-ring. When such chemicals are
used, it is to be feared that the O-ring will be damaged or that its
deterioration will be accelerated.
(2) Use the original Olympus silicone O-ring grease (white cap). The
grease attached to Cases up to PT-008 (red cap) and the grease of
other companies are not suitable for this silicone O-ring, and use of
such grease may cause deterioration of the surface and impairment
of the waterproof function.
(3) In order to avoid deformation of the O-ring when the Case is not used
for a long time, remove the O-ring from the Case, apply a thin coat of
the special grease, and store the O-ring in a clean plastic bag. For
reuse, confirm that the O-ring is free of damage and cracks, that it
has sufficient elasticity, that the surface is free of stickiness and other
abnormalities, and use it after applying a thin coat of the special
grease. Excessive application of grease does not improve the
waterproof function or the permissible withstand pressure. However,
it may facilitate attachment of sand, dirt, etc.
A thin, uniform coat produces the best result.
(4) The O-ring is a consumable product. Replace it at least once a year.
(5) Deterioration of the O-ring is accelerated by the use conditions and
the storage conditions. Replace the O-ring immediately by a new one
if it shows signs of damage, cracking or loss of elasticity.
Q10 : What are the important points for Case maintenance?
A10 : Please observe the following items.
(1) Never use the following chemicals for cleaning, corrosion protection,
defogging, repair or other purposes.
• Never use alcohol, thinner, benzene or similar volatile organic
solvents or chemical detergents to clean the Case. Pure water or
lukewarm water is sufficient for cleaning.
• Do not use anticorrosion agents on the metal parts. The metal parts
are made of aluminum, brass or stainless steel. Cleaning with pure
water is sufficient.
• Do not use commercial defogging agents. Always use the original
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