AGV K-4 Manual Del Usuario página 15

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CLICK !
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4.2) Quick release buckle retention system
With the quick release buckle retention system, the strap
must be adjusted before being fastened.
Following the indications of the figure below, adjust the length
of the strap, lengthening or shortening the portion of tape that
passes through the metal ring (1) until the helmet fits snugly
when the strap is fastened.
To fasten the helmet, slot the buckle into the retention me-
chanism (2) until it clicks closed (3).
Check that the helmet fits snugly (see the paragraph entitled
"Choosing the right helmet" in the "Safety Warning" booklet).
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To remove the helmet, use
the red button (4) to open the
retention mechanism and
then open the buckle (5) as
shown in the figure below.
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