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Cleaning instructions
Clean the headset exterior and cushions by wiping them with a moist
cloth. Mild soap may be used.
CAUTION:
Do not immerse the headset in water.
The headband cover is made from leather and sheepskin. If it becomes
soiled, it may be removed and cleaned using mild soap. To remove the
headband cover, peel apart the hook and loop fastener along the flap.
Clear Comfort
TM
cushion replacement and
maintenance
To maintain good noise reduction, the Clear Comfort cushions in the
headset should be replaced periodically; annual replacement is
recommended. As the cushions wear, the silicone gel rings may spread
apart, causing uneven thicknesses and gaps in coverage. This can
lead to air leaks that result in reduced noise attenuation. Popping or
fluttering sounds are also common when wearing worn cushions. If the
gel leaks, replace the cushion. Frequent flying may require replacement
more often.
To order a replacement cushion kit, call the Bose
®
Aviation Headset
Service Department (page 23). Before ordering, remove the cushions
and inspect the foam liners in the earcups. If you note significant
deterioration, order foam liner replacements also.
To remove the cushion and foam liner
Note:
Do not use a hard object such as a screwdriver, which can mar
the earcup.
1. Unsnap the trim ring on one earcup by gently prying the edge loose
with your fingers.
Figure 12
Unsnapping the trim ring
from the earcup
Once the trim ring has popped loose, work your way around the
earcups until the trim ring is completely free.
2. Lift out the old cushion. If you will be installing a new foam liner,
proceed to the next section. Otherwise, skip to “To replace the
cushion” (page 19).
Care and Maintenance