3M Littmann Select Посібник - Сторінка 4

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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.

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

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

diaphragm, allowing the diaphragm to slip into position.

General Use and Maintenance

• Avoid extreme heat, cold, solvents, and oils.

• The entire stethoscope can be wiped clean with

alcohol or soapy water.

between the thumb and fingers.

Repeat this flexing procedure

after rotating the assembly one

quarter.

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