Philips S9721/41 Manual page 30

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English
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4 Turn the retaining ring anticlockwise and lift it
off the shaving head.
Repeat this process for the other retaining rings.
Place them aside in a safe place.
5 Remove the shaving heads from the shaving
head holder. Each shaving head consists of a
cutter and guard.
Note: Do not clean more than one cutter and
guard at a time, since they are all matching sets.
If you accidentally put a cutter in the wrong
shaving guard, it may take several weeks before
optimal shaving performance is restored.
6 Clean the cutter and guard under the tap.
7 Shake off excess water.
8 Put the cutter back into the guard.
9 Place the shaving heads in the shaving head
holder.
Note: Make sure the notches on both sides of
the shaving heads fit exactly onto the
projections in the shaving head holder.