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5 Apply a coating of grease to the O-ring.
•Apply a small drop of grease onto the O-ring and evenly coat the entire surface of
the O-ring with the end of your finger.
•Do not use paper or cloth as fibre may stick to the O-ring.
•Make sure that a thin coating of grease is applied to the surface of the O-ring at all
times. Grease protects the O-ring, and prevents wear.
•After you have applied a small drop of grease onto the O-ring, set the O-ring
immediately. Do not leave the greased O-ring on a desk or other surfaces.
6 Place the O-ring in the groove on the marine pack.
Place the O-ring evenly in its groove paying attention to the following points:
– Is there any dirt on the O-ring?
– Is the O-ring twisted?
– Do not pull the O-ring.
– Is the O-ring protruding?
Note on the O-ring (continued)
Final check
After you have fitted in the O-ring, check it again for the following:
– Is the O-ring twisted?
– Is there any dirt on the O-ring?
– Is the O-ring protruding?
– Are there any cracking or distortion on the O-ring?
How to check for water leaks
After you have replaced the O-ring, close the marine pack before you insert the
equipment you are using. Immerse the marine pack for about three minutes in water to
a depth of about 15 cm, and check for water leaks.
PCAUTION
When you have taken photos on a sandy sea bottom or have placed the camera on the
sand, remove the O-ring and check for water leaks.
Be sure to take a spare O-ring with you.
This facilitates replacement even if O-ring trouble occurs
where you are taking photos.
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