JVC WR-MG77U Vorgehenweise Seite 5

Plectrum
For removing the O-ring.
To remove the O-ring, insert the plectrum between the O-ring and the O-ring
groove.
Silicon grease
For protecting the O-rings and preventing water leakage.
Check to ensure that there is no foreign substance on the O-ring before
applying the grease.
Squeeze about 1 cm of the grease onto your finger, and apply it on the
O-ring by holding the O-ring with your fingers.
* Do not pull the O-ring with force.
Precautions
O-ring is important as it keeps the marine case airtight. Failure to
attach it correctly may cause water to enter the marine case and
the camera inside to malfunction as a result. Pay careful attention
when attaching the O-ring.
Plectrum
O-ring
O-ring groove
About 1 cm
Grease
O-ring
5