PIAGGIO 633929(IT) Service Station Manual page 185

MP3 125
Suspensions
Remove the arm coupling retainers from the par-
allelogram by loosening the retainers indicated.
For easy refitting operations, remember to take
note of the positions of the components.
Separate the half-arms by hitting slightly with a
wooden mallet where possible alternatively to the
left and right side of the parallelogram.
Remove the headstocks.
SUSP - 13