16
REPLACEMENT PARTS
1
REMOVE EXISTING YOKE ASSEMBLY
First, disassemble the microphone by following step 1 on page 14. Next, remove the inhalation
flapper by following step 1 on page 12 to avoid damaging it. Lastly, starting on one inside corner,
peel the facepiece off of the inside of the yoke until it is free.
NOTE:
When peeling off the facemask,
the exhalation valves will likely become
uninstalled. Follow step 2 on page 13
to reinstall.
2
INSTALL REPLACEMENT YOKE ASSEMBLY
Starting at the top of the rectangular inhalation flapper seat, gently pull the facepiece into the space
between the inhalation flapper seat and the back of the yoke, until all four corners of the inhalation
flapper seat are visible inside of the facepiece.
YOKE ASSEMBLY REPLACEMENT
Microphone
Inhalation
Flapper
Lock Washer
Facepiece
Nut
Yoke
Filter Gasket
Summary of Contents for SOTR
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