Maintenance - Diaphragm Cleaning and Replacement
It is important to keep your One stethoscope clean and dust-free - good practice for health reasons
anyway. Read below, and see Cleaning Inside your Stethoscope on the next page.
Cleaning Outside - Wipe any external part of your Thinklabs One Digital Stethoscope with alcohol
wipes. The diaphragm can be cleaned with other cleaning agents, but avoid allowing liquids to leak into
the stethoscope.
Removing and Cleaning - You can also unsrew the diaphragm ring to clean inside the stethoscope. Turn
power off before removing the diaphragm ring. Unscrew the diaphragm ring (counter-clockwise when
looking at the diaphragm). You can clean both sides of the diaphragm with alcohol. Make sure that no
oil or other residue remain inside of the diaphragm. It's important that the inside surface be clean and
free of any surface grease or other chemicals to operate well.
Attaching the Diaphragm - VERY IMPORTANT - When you replace the diaphragm and screw on the
diaphragm ring (clockwise), make absolutely sure that the ring is straight. It's a good idea to turn it
COUNTER-clockwise until you feel it align, and then GENTLY screw it clockwise. If it feels like it's not
screwing on cleanly, start again. The reason is that the thread is intentionally quite soft to keep the ring
on, and can be easily damaged. Once the ring is aligned, screw until the diaphragm is in place and
doesn't rotate freely, but DO NOT OVERTIGHTEN - firm, not tight!
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