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MAINTENANCE
Your CZ-20 doesn’t require a lot of care. It’s built with high-quality
materials, and it’s waterproof to a depth of 250 feet. But there
are a few things you should do to keep it in peak operating
condition.
Storage
1. If you’re not going to be using it for awhile, take the batteries
out. Acid damage caused by leaking batteries can be severe.
2. Avoid extreme temperatures. Don’t leave it inside a closed
car sitting in the sun or even worse, in the trunk of a car.
Cleaning
1. Sand and dirt between the coil “ears” and lower stem will
literally grind away the ears and stem.
2. The headphone ear pads may be removed, rinsed and
squeezed out to remove any sea-water salt build up.
3. Sand, silt or fine dirt between the upper and lower stems will
cause the lower stem to freeze up. Rinse frequently.
4. Rinse the lower area under the two knobs on the control
panel thoroughly after use in salt water.
5. Always clean and dry the area around the battery-cover
seal before opening.
Battery Compartment
1. Remove the battery cover and check for water after each
use in water.
2. Keep the sealing surfaces of the battery cover and control
housing clean and free of scratches and nicks. Remove and
clean the neoprene gasket frequently. Lubricating the gasket
is not required or recommended unless it is nicked and/or cut,
in which case use only a very thin coating of petroleum jelley.
Do not use silicone grease.