Suunto D9 [94/122] Maintenance

9.3. MAINTENANCE

If left without care for an extended period, a thin ﬁ lm (often invisible to the eye) will co-

ver the unit. Much like the buildup on the glass of an aquarium, this ﬁ lm is the result of

organic contaminates found in both salt and fresh water. Suntan oil, silicone spray and

grease will speed up this process. As a result of this buildup, moisture will be trapped

next to the water contact and will not allow your Suunto D9 to operate properly.

The water contact can be cleaned with a small brush (e.g. toothbrush).

IMPORTANT: The Suunto D9 should be soaked, then thoroughly rinsed with fresh wa-

ter and then dried with a soft towel after each dive. Make sure that all salt crystals and

sand particles have been ﬂ ushed out. Check the mineral crystal for possible moisture

or water. DO NOT use the D9 if you detect any moisture or water inside.

CAUTION!

• Do not use compressed air to blow water off the unit.

• Do not use solvents or other cleaning ﬂ uids that might cause damage.

• Do not test or use the dive computer in pressurized air.

9.4. WATER RESISTANCE INSPECTION

Water resistance of the unit must be checked after replacement of the battery or after

other service operations. The check requires special equipment and training.

You must frequently check the display for any sign of leaks. If you ﬁ nd moisture inside

your dive computer, there is a leak. A leak must be corrected without delay, as mois-