HEADSET CARE AND MAINTENANCE
Ear cushions
As a general rule, ear cushions should be replaced after 500 hours of use, depending on how often you fly. You may have to replace them more often, if you:
•have a full beard or heavy whiskers
•subject the headsets to severe temperature extremes such as parking your airplane outside in severe cold or heat
•put excess strain on the headset due to improper storage Indications that the ear cushions need replacing include:
•flaking of the outer covering
•cuts or tears
•flattening of the cushion, reducing the effectiveness of the seal
To extend the life of the ear cushions, perform regular cleaning as described in “General cleaning” on page 25.
If the ear cushions require more vigorous cleaning, remove them from the earcups, as shown in “Replacing parts” on page 27. Do not immerse ear cushions in water or any other liquid.
Microphone windscreen
Remove the windscreen from the microphone as described in “Microphone windscreen replacement” on page 27.
Wash the windscreen by immersing in mild soapy water. Rinse, air- dry, and reattach the windscreen.
Earcup inner screen
Do not attempt to remove, replace, repair, or clean this component. Located inside the earcup, the inner screen is critical to proper head- set operation. If the screen appears to cause operating problems, contact the Bose® Aviation Headset Department.
Replacement parts
Replacement parts can be ordered directly from Bose Corporation. Please refer to “Contact information” on page 34.
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