Care and maintenance
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A R 5 I N S T R UC T I O N M A N UA L
O-rings
When replacing the main seal O-ring, place the entire O-ring over the O-ring groove and start
by pushing the O-ring in the corners. Work your way around the O-ring making sure it is snugly
sitting in the groove. Avoid going solely in one direction as doing so will stretch the O-ring
material and possibly prevent it from properly seating.
When working your housing or port O-rings, please follow these instructions:
Never use a sharp instrument when removing an O-ring as this may damage the
sealing surface of the groove or the O-ring itself. A dedicated O-ring tool, a dull
pointed object or the edge of a credit card usually works well.
Once removed, the O-ring should be inspected for damage. Carefully check that it
is free of nicks or cuts and that it retains its original round profile. O-rings that
appear to be damaged should be immediately replaced with new ones.
Rinse the O-ring with fresh water and dry it with a clean lint free cloth.
Clean the O-ring groove (the channel where the O-ring sits) with a cotton swab.
Make sure to remove any lint the cotton swab may leave behind.
Wipe the matching sealing surface part of the housing with a clean lint-free cloth.
Lubricate the O-ring with a thin layer of Aquatica O-ring lubricant (# 19213) until it
appears to be smooth and shiny.
Do not over lubricate
. Use just enough lubricant
so the O-ring will pull smoothly through your fingers. Excessive amounts of grease
will only attract and trap dirt onto the O-ring.
Confirm that the Port and extension ring O-rings are properly and evenly seated in
their O-ring groove.
To reinstall the clean and lubricated main O-ring of the housing:
Place the entire O-ring over the groove and start by pushing the O-ring in
at each corner.
Push the O-ring at each side to distribute it evenly across the surface
before finally working in the rest of the O-ring.
Never start at one end and work your way around the O-ring. This creates
uneven tension on the O-ring which may cause the O-ring to stretch.
WARNING:
When changing ports or O-rings, a simple seal test without the camera inside
should be performed. Strapping a weight to the housing and lowering the unit to a
depth of 30 to 50 feet of water for at least 10 minutes will assure you that you
have a proper seat of the new port or O-ring. This test,
though time consuming
and often considered unnecessary, may save your camera equipment from
irreparable water damage.
