4
Wipe off any foreign particles attached to the O-ring and O-
ring seal surface (Fig. A position) using soft, lint-free cloth or
something similar.
If using tissue paper to wipe it off with, be careful, since fine lint may be left
behind.
O-ring (white)
5
Check the O-ring installed.
Check the front-side O-ring (white) installed.
Feel the O-ring with the tip of your finger to confirm that there is no step.
If you feel a step, the O-ring may be twisted. Reinstall it, following the
instructions on p.23.
Front-side O-ring (white)
Check the back-side O-ring (orange) installed.
If installed incompletely, reinstall it, following the instructions on p.24.
Back-side O-ring (orange)
A
O-ring
If the O-ring is twisted or stretched,
or if there is any foreign particle on
or underneath it, water will leak in.
● Cross
section of
the O-ring
● Cross
section of
the groove
EN-9
A O-ring (orange)
● Correctly
installed O-ring
and groove
Flat face
Bottom face of
groove