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
Approved helmets on page
10
.
2. Assemble the helmet fork on the attachment
adapter.
Note: Refer to
Approved helmets on page 10
for
more information about which helmet attachment is
applicable to your helmet.
3. Move the earmuffs to the lowest position.
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.
7. Continue to assembly instructions for your approved
helmet.
CAUTION: Make sure that the cable is
not twisted or has a small bend radius. Make
2146 - 003 - 5
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