Sony MPK-TRV7, Operating Instructions Manual

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The O-ring assures the waterproof function of the marine pack. To maintain waterproof
integrity, use it correctly. Incorrect handling may cause water to leak in.
Check that there are no scratches or cracks
Check that there are no scratches or cracks on the O-ring as they may allow water to
leak in. If there are scratches or cracks, replace the damaged O-ring with a new one. Do
not remove the O-ring from the groove with a metal tool or a tool with a sharp point.
Remove any dust, sand or hair from the O-ring.
Make sure there is no dust, sand or hair on the O-ring, in the groove, or on the surface
of the marine pack where the O-ring touches. If there is, clean them completely, or the
O-ring and the surface of the marine pack may be damaged and water may leak in.
Grease the O-ring
Check that there are no cracks or dust on the O-ring, then coat it slightly with the
supplied grease using your finger. They will prevent wear. While applying the grease,
recheck for cracks or dust.
Never use cloth or paper to apply grease because the fibers may cling.
Do not use any type of grease other than the supplied one, or it may damage the O-ring.
If you run out of silicone grease (2-115-921-01) you can purchase it from your nearest
Sony Service Center.
Do not twist the O-ring
Put the O-ring in the groove evenly. Never twist it.
Do not pinch the O-ring with the marine pack
When jointing the front and rear shells, take care not to pinch the O-ring between the
front and rear shells. If this happens, not only will the O-ring be damaged, but water
may leak in.
Useful life of the O-ring
Depending upon the maintenance and the length of use, we recommend changing the
O-ring every one or two years.
The O-ring (3-977-362-01) can be replaced at your nearest Sony Service Center.
Note on the O-ring
O-ring
Scratches
Crack