SUOMY SFERA Instructions Pour L'utilisation page 31

EN
USE AND MAINTENANCE
If this is not the case, lift the locking tab of the lateral adjustment system (pic. 4) and slide the strap inside until it
reaches the correct position. Make sure the strap does not partially overlap the ears and then re-tighten the
tab/flap of the adjusting system until it is completely locked.
BACK SIZE MICROMETRIC ADJUSTER - (see pictures 5/6)
The back size adjuster is equipped with two regulation systems, one for the size and the other for the correct
height positioning.
Position the adjuster so that it lies on the occipital lobe. In case this does not occur use the height adjusters
located inside the helmet, and slide the adjuster upwards or downwards (pic. 5).
Then adjust the size using the adjustment wheel (pic. 6).
Turn the wheel clockwise to tighten or counter clockwise to decrease the tightening. Do this by using two fingers
as indicated in pic. 6.
WARNING: The adjustment of the system must ensure a good locking of the helmet on the head without
discomfort.
BACK SIZE STRAP ADJUSTER - (see picture 7)
When provided (or in case of purchase of a Velcro spare strap size adjuster) adjust as indicated in the previous
point by changing the strap's length after it has been positioned on the occipital lobe.
Slide the strap to tighten it and then apply pressure on the Velcro to secure it.