64
OticOn chili
FITTInG GuIde
65
damper (optional)
The damper can be placed in the hook on BTe instruments.
It mainly works as an acoustic filter, shaping the frequency
response, but also has a function of preventing moist and
cerumen from entering into the instrument.
If there is no sound in the instrument or the sound output is
reduced, it may be caused by a clogged damper and it must be
replaced.
Replace the damper as shown.
1
2
3
4
1. To remove the hook, insert the tip of the black service tool
as far as possible but do not push the pin all the way out. If
the tool has difficulty in pushing the pin out, try from the
other side of the hearing aid.
2. The pin should be left in position i.e. pushed through the
hearing aid, yet still attached.
Place the service tool in front of you.
3. Pull the hook off and insert the new hook. Make sure the
hook is pushed in correctly.
4. use the other end of of the service tool and push the pin
back into the hearing aid. Be sure to hold the service
tool firmly on each side.
Continue until the pin is flush with the hearing aid shell
surface.
Replacing the hook
1.
2
.
3.
4.