AGV K-3SV Mode D'emploi page 16

4) FASTENING SYSTEMS
There are three types of fastening systems:
- DD ring fastening
- Quick release mechanism
- Micrometric fastener
Below are the instructions for using these three systems.
1
2
3
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4.1) DD ring fastening
To fasten the helmet, pass the
strap between the two rings (1),
pull the end of the strap (2) until
the belt presses against your jaw
and fasten the press-stud (3), as
shown in the diagram.
Check that the helmet is secure
(see also the section entitled
"Choice of appropriate helmet" in
the "Safety Warning" booklet).
To loosen the helmet, undo the
press-stud by pulling the end of
the strap and loosen the strap
through the rings, using the red
tab, as shown in the diagram.