Use a clean cloth not easily shedding fibers or a toothbrush or tissue paper or the like to remove any foreign matter from the O-ring groove. Clean the Oring contact surface on the front lid in the same way to remove any sand and dirt.
CAUTION : • When a mechanical pencil or a similar other sharp object is used to remove the O-ring or to clean the inside of the Oring groove, the Case and the O-ring may be damaged and water leakage may be caused.
•When the O-ring is checked with the fingertips, take care not to stretch the O-ring.
•Never use alcohol, thinner, benzene or similar solvents or chemical detergents to clean the O-ring. When such chemicals are used, it is to be feared that the O-ring will be damaged or that its deterioration will be accelerated.
Install the O-ring.
Confirm that no foreign matter is attached, apply a thin coat of the accessory grease to the O-ring, and fit the O-ring into the groove. At this time, confirm that the O-ring does not stick out from the groove.
