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pushed on to the end of the eartube and snapped firmly
into place. To remove, pull firmly on the eartip.
Removing the Diaphragm and
Cleaning the Chestpiece
soapy water or wipe with alcohol. Chestpiece surfaces
can be wiped with alcohol or soapy water. Dry all parts
and surfaces thoroughly before reassembly.
Assembly and Replacement of the
Tunable Diaphragm
Using your fingertip, apply a
small amount of talcum powder
to the inside surface of the
flexible edge of the diaphragm.
This will facilitate assembly
and maintain smooth and quiet
low/high frequency alternation.
Snap the diaphragm with your fingers to remove excess
talc.
Insert the flexible edge of the
diaphragm into the groove of
the rim. This is best
accomplished by starting with
the rim positioned above the
legible side of the diaphragm.
With the diaphragm side up,
grasp the rim with the thumbs
and index fingers of both
hands and roll the rim off the
edge of the chestpiece.
Remove the diaphragm from
the rim and clean the parts in
and fingers. Repeat this flexing procedure after rotating
the assembly one quarter.
diaphragm to slip into position.
3
Visually examine the ring to
ensure that the flexible edge is
smoothly engaged inside the
rim. If necessary, flex the
assembly by pinching the outer
rim edge between the thumb
To attach the rim/diaphragm
assembly to the chestpiece,
engage the groove of the rim
(with the diaphragm attached)
around the chestpiece at one
point and hold it in place with
your thumbs.
Slowly roll the rim around and
over the chestpiece edge using
both thumbs, moving in
opposite directions around the
chestpiece.
Visually inspect the edge where
the diaphragm engages the rim
for uniform containment.
Minor adjustments may be
made by slightly pulling and
rolling the rim away from the
diaphragm, allowing the
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