Nikon AW1 - Manual (Page 76)

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2 Wash the O-ring.
Wash the O-ring thoroughly in fresh water and dry thor-
oughly. Do not use benzene, thinner, alcohol, soap, neutral
detergents, or other cleaning products, as these could dam-
age or weaken the O-ring.
3 Inspect the O-ring.
4 Inspect the O-ring guide.
5 Grease the O-ring.
Remove any foreign matter with a
soft, dry cloth, taking care not to leave
tissue or threads on the O-ring. Gently
bend the O-ring to check for cracking
or other damage.
Use a blower or cotton swab to
remove any foreign objects from the
O-ring guide. Be sure to remove any
threads left behind by the swab.
Place a bead of silicon grease in a plas-
tic bag and use your fingers to spread
the grease throughout the bag (q),
then insert the O-ring and massage
the bag to coat the ring (w).