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2.8. Maintenance of main O-ring
a. Keep the main O-ring clean, as a dirty O-ring
may cause leakage.
b. When the O-ring becomes dirty, by hand,
remove the O-ring from the slot of the Seashell
housing. Avoid using sharp tools which may
damage the O-ring.
c. Do not over-stretch the O-ring as it may
cause damage.
d. Clean the O-ring by flushing tap water, and
gently remove the dirt with your fingers.
e. Apply one drop of O-ring grease and spread it
along the whole length of the O-ring using your
fingers pulling from one direction until the entire
O-ring is coated with O-ring grease, as shown.
g. Never use any other grease not supplied by
Zear Corporation Ltd.
h. Do not use paper towel or cloth to apply O-ring
grease, use your fingers only.
i. Gently put the lubricated O-ring by hand back
into the O-ring grove at the rear housing.
j. Clean and lubricate the main O-ring periodically
to ensure best performance.
k. Replace the O-ring annually.
l. Clean all dirt or sand at the O-ring grove with
tissue paper before putting the O-ring back if
required.
2.9. Maintenance of small O-rings of the
press buttons
a. Press the button all the way down.
b. Use the blunt end of a toothpick to apply a
small amount of O-ring grease to the junction of
the press button shaft and the rear housing
f. Applying too much O-ring grease may cause
leakage.
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c. Press the button a few times and the lubricant
grease will be transferred to the small O-ring
d. Repeat the same for all other buttons.
