BH EASY motion STAND UP Manuel De L'utilisateur page 41

UNBLOCKADE: To ensure the stem, place it in a vertical position again, Turn
the stem forwards, the safety blockade is to close automatically, later close the
closing lever to the final position (Figure 8) (Blockade closing).
The adjustment of the closing press can be regulated with the nut of the closing
lever
The handlebar and stem must be fitted correctly positioned and tightened in a
suitable and safety position to the user.
Stem adjustment and subjection.
The stem is fitted directly to the fork tube, to make the adjustment, the lateral
screws shall be loose lightly (Figure 9) (Lateral screws), check the headset as it
is explained on the following item and tight the system again.
First, tight the central screw (Figure 10) (Central screw), and later the lateral
screws and check the Headset.