Ikelite 5516.69 Instruction Manual page 4

INSTALLING THE LENS EXTENSION and PORT - continued
Port Base O-ring;
should be lightly
lubricated - use
Ikelite lubricant only.
Rotate clockwise
to tighten
Approximately 5/32" or
less gap will be present
between the Housing
Front and bottom of
the Port when the
Dome, Flat Port or Lens
Extension is properly
installed. Also, the
Securing Screw threads
will not be visible when
tightened.
4
Diagram B