Maintenance before Use
1.Remove the two O-rings (red) for waterproofing. Pinching and
pushing the O-ring as shown in the illustration makes it easier to
remove it.
2. Confirm that no dirt or foreign substance is attached to the
removed O-rings and that they don’t have any scratches or
cracks.
* If there is an abnormality with the O-ring, replace it with a new one
(DL- OS02).
3. Wipe clean the O-ring grooves with a cotton swab.
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