Nikon WP-CP4 (Coolpix 5900/7900) 사용자 설명서

Maintenance

18

Grease the O-ring
If the O-ring is not properly greased, it may crack 
or peel, causing leaks.  If the bottom of the O-ring 
appears dry, place a drop of O-ring grease on your 
index fi nger and spread grease on the O-ring by 
sliding it between your thumb and index fi nger, 
gently stretching the ring.  Do not use cloth or 
paper, as these may leave fi bers on the O-ring.  
Note that applying too much grease may cause 
foreign matter to adhere more readily to the ring, 
preventing the case from sealing properly.

Replace the O-ring
Making sure the O-ring and guide are free of 
foreign objects, place the O-ring so that it runs 
evenly at the same level all the way round the O-
ring guide, without undue stretching and without 
protruding from the guide.  

Do not use detergents or volatile chemicals such as alcohol or thinner when cleaning 
the case.  Failure to observe this precaution could result in damage to the case or O-
ring.

Check the seal
Close the case and check that the case is fully 
sealed.  If the O-ring does not form a perfect seal, 
open the case and adjust the O-ring to prevent 
leaks.