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2. Move the earmuffs up or down to adjust the height.
To assemble the earmuffs to a helmet
1. Assemble the correct adapter attachment type to the
helmet shell. Refer to
10 .
2. Assemble the helmet fork on the attachment
adapter.
2.
Note:
Approved helmets on page 10 for
Refer to
more information about which helmet attachment is
applicable to your helmet.
3. Move the earmuffs to the lowest position.
2146 - 003 -
Approved helmets on page
1.
4. Lift the earmuffs out and up until they lock in standby
position.
5. Do a mark on the cable.
a) For helmet H300, do a mark 27 cm/11 in (X) from
each earmuff.
b) For helmet Spire Vent X, do a mark 14.5 cm/6 in
(Y) from each earmuff.
6. Put the helmet attachment in the slot on the helmet.
L
7. Continue to assembly instructions for your approved
helmet.
CAUTION:
not twisted or has a small bend radius. Make
Y
X
R
Make sure that the cable is
5
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