Maintenance of the O-Ring Seal
The O-ring seal is the only barrier between the water outside and the air space within the camera. It
is an effective barrier only if the seal is properly maintained. The O-ring seal should be inspected
before every dive. The following information is provided for your guidance in using and
maintaining the O-ring seal.
Maintaining the O-Ring Seal:
If the main body to lid O-ring is not installed, install the O-ring before diving. This is the only user
serviceable O-ring. Its care and maintenance is critical to the watertight integrity of the housing.
The O-ring should be replaced at the proper service interval (see Section on Service). If the O-ring
is contaminated, or not already installed, inspect, grease and install the O-ring according to the
following guidelines.
Guidelines For Inspection, Cleaning And Re-Instillation Of The O-Ring
[Gasket]:
Materials Needed:
You will require a soft cotton cloth or q-tip. Make sure these are free of all chemicals or
contamination such as loose fibers. You will also require the tube of silicone grease supplied with
the housing. Note that other types of silicone grease specifically for use with underwater camera
equipment can usually also be used. It is advised to carry out the following procedure on a firm
clean level surface, e.g. at a table), to prevent skidding. This is especially useful if you are doing
this maintenance from your diving boat as it moves with the wave swells.
When To Maintain the O-Ring Seal:
Remove the O-ring periodically for inspection. It is not necessary to remove, clean and re-install the
O-ring after every dive provided the O-ring did not become contaminated. The housing may be
required to be opened between dives, to replace memory card or recharge the batteries. Before
opening, make sure the outside of the housing is thoroughly toweled dry. After removing the lid and
servicing the camera, replace the lid straight away rather than leaving it lying around. Before
replacing the lid, make sure that no contamination such as dust, hair, salt, etc. has fallen onto the O-
ring or O-ring recess, as a precaution we recommend maintaining the O-ring every time the lid is
opened.
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