SUUNTO Cobra - Manual (Page 59)

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5. Carefully remove the lid with the beeper attached to it. The lid can be
removed by pressing with your fi nger on the outermost edge of the lid
while at the same time pulling with your nail at the opposite side. Do not
use sharp metal objects as they might damage the O-ring or the sealing
surfaces.
6. Remove the O-ring and the battery retainer.
7. Carefully remove the battery. Do not damage the electrical contacts or the
sealing surface.
Check for any traces of fl ooding, particularly between the beeper and the lid, or for
any other damage. In case of a leak or any other damage, bring the dive computer
to an authorized Suunto dealer or distributor for check and repair.
8. Check the condition of the O-ring; a defective O-ring may indicate sealing
or other problems. Dispose the old O-ring, even if it seems to be in good
condition.
9. Check that the battery compartment, battery holder and lid are clean. Clean
with soft cloth if necessary.
10. Check the polarity of the battery: the “-” mark should point toward the
bottom of the compartment and the “+” mark upwards. Gently insert the
new battery in the battery compartment
11. Reinstall the battery retainer in its correct position.
12. Check that the new lubricated O-ring is in good condition. Put it in the right
position in the battery compartment. Be very careful not to get any dirt on
the O-ring or its sealing surfaces.
13. Carefully press the lid onto the battery compartment with your thumb,
while making sure that the O-ring is not at any point protruding out at the
edge.
14. Put your other thumb through the locking ring. Press this thumb fi rmly
against the lid and release the other one. Make sure that the lid is pressed
completely down!
15. Note the correct orientation of the locking ring. Turn the locking
ring counterclockwise with your free thumb and fi ngers until it snaps into
its locked position.