Headset Adjustment - 3M Littmann II S.E. Manual Del Usuario

Headset Adjustment

Your Littmann stethoscope is
designed to provide a
comfortable, acoustically sealed
ear fit. Notice that the ear tubes
are set to accommodate the
Correct
typical anatomy of the ear canal.
The eartips should point in a
forward direction as you insert
them into your ear canals.
Incorrect
To reduce spring tension in the
headset, hold each ear tube at
the bend near the eartip and
gradually pull apart until
fully extended.
To increase spring tension, grasp
the headset with one hand where
the ear tubes enter the plastic
tubing and squeeze until the
plastic tubing on one ear tube
touches the other. Repeat
as necessary.
Removing the Diaphragm and
Cleaning the Chestpiece
With the diaphragm side up, push
the rim at one point with both
thumbs and roll the rim off the
edge of the chestpiece. Remove
the diaphragm from the rim and
clean parts in soapy water or wipe
with alcohol. Wipe chestpiece surfaces with alcohol or
soapy water. Dry all parts and surfaces thoroughly
before reassembly.
Assembly and Replacement of the Diaphragm
Using your fingertip, apply a small
amount of talcum powder to the
inside surface of the flexible edge
of the diaphragm then align the
rim and diaphragm as a unit. This
will facilitate assembly and
maintain smooth and quiet low/
high frequency alternation. Snap
the diaphragm with your fingers to
remove excess talcum powder.
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. Visually examine the
ring to ensure that the flexible
edge is smoothly engaged inside
the rim. Refer to illustration for
correct assembly of the non-chill
rim and diaphragm. If necessary,
flex the assembly by pinching the
outer rim edge between the thumb
and fingers. 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
diaphragm to slip into position.
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