Philips S91 SERIES User Manual page 43

5 Place new shaving heads in the
holder.
Note: Make sure the notches on both
sides of the shaving heads it exactly onto
the projections in the shaving-head holder.
6 Place the retaining ring holder
on the retaining ring (1), place it
on the shaving head (2) and turn
it clockwise (3) to reattach the
retaining ring.
Repeat this process for the other
retaining rings.
Note: Hold the shaving head holder in
your hand when you reinsert the shaving
heads and reattach the retaining rings.
Do not place the shaving head holder
on a surface when you do this, as this
may cause damage.
7 Reattach the shaving head holder
to the bottom part of the shaving
unit.
8 To reset the shaver, press and
hold the on/off button for approx.
7 seconds. Wait until you hear
two beeps.
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