Ikelite D90 - Manual (Page 9)

Closing the Housing
1. Place housing face down in your lap.
2. Check to see that there is an o-ring on
the housing back that is clean and in its
proper location.
3. Guide the back onto the housing. The
o-ring should touch the housing all the
way around. There should
be an even gap all the way around
between the housing and the housing
back.
4. Lift the lid snaps so they are extended
and place the lid snap into the
corresponding hook on the housing back.
5. To close the housing, push down on the
lid snaps until they snap into place. Lid
snaps on opposite sides of
the housing should be closed
at the same time. Be sure they
are down far enough to engage
the lid-snap lock.
Double check - Once the housing is closed,
check the o-ring seal. Check the gap between the housing back and the
housing, it should be even all the way around.
Look through the clear plastic back at the o-ring. You should see a
darkened area where the o-ring is compressed against the housing
back. If you do not see an even black compression seal all the way
around the back, open the lid snaps, reseat the housing back, and then
close the lid snaps. Visually check the seal again.
o-ring
housing back
housing back
housing
housing
o-ring
even gap
all 4 sides
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