Checking The O-Ring - Fantasea Line FG9X Instruction Manual

CHECKING THE O-RING

1. Prior to each closure of the housing, the back door black O-ring should be visually inspected. If
there is any debris present, including dirt, sand, dust, hair or any other matter, it must be cleaned
to ensure a proper watertight seal.
2. In order to clean the black O-ring, first remove it from the housing:
a. Insert the O-ring remover between the black O-ring and the groove it is seated in (figure #8).
b. Slip the tip of the inserted O-ring remover below the black O-ring, while making sure the O-
ring doesn't get damaged (figure #9).
c. Carefully hold the O-ring with your fingertips in order to remove it from the groove.
3. Cleaning the O-ring is a simple matter of wiping it with a damp, soft cloth to remove the foreign
matter. Be careful the cloth you use does not leave any of its own material behind as this can also
affect the effectiveness of the seal.
4. Apply a slight layer of silicone grease on the black O-ring. Please note that the amount of
lubrication required on the O-ring is only enough to allow it to slip into place without friction, so it
does not twist or become dislodged. More grease is not necessarily better, and in some cases might
interfere with the watertight seal of the housing. To avoid any damage caused to the O-ring by the
use of incompatible grease, it is recommended to apply only the silicone grease supplied by
Fantasea on the housing O-ring.
5. When reinstalling the O-ring, place it back into the groove starting at one corner and gently
pressing it into the groove all around the housing until it is all seated in the groove and no part of it
is sticking up or out of the groove.
6. The white O-ring featured on the back side of the front door should be visually inspected prior to
each dive. If there is any debris present, gently wipe the area with a soft cloth in order to cleanse it.
7. Silicone grease must NOT be applied on the white O-ring featured on the back side of the front
door. In addition, this white O-ring shouldn't be removed unless it's damaged.
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Figure #8
17
Figure #9
FG9X Housing Instruction Manual 20160409