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Care and Maintenance

Figure 12

Unsnapping the trim ring

from the earcup

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.

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

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.

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).

cushion replacement and

Aviation Headset