Instruction manual

9
BMW System 4 Helmet Installation
Remove neck collar by pulling the back of the collar away from the helmet and
slide both side guides out from retaining locators. Detach Velcro flaps (marked
‘A’ below) to expose the polystyrene ear cups.
Thread boom (microphone first) under the chin strap but over the opened
Velcro flaps (A). Locate speakers just below the polystyrene ear indents under the
Velcro flaps (B).
Neatly tuck speaker cable under lining around the back of the helmet and
below the neck collar retaining groove, out of sight (C).
Position headset down lead along the outer edge of the helmet under the
Velcro flap. This may require addition Velcro to ensure security. Close the Velcro
flaps and tidy.
Push the thin section of boom into the joint between the skull and cheek lining,
under the chin strap. Locate the boom across the top of left hand cheek pad
forming it to follow it’s contours. Hold boom down firmly and secure in place
with Velcro or a suitable sticky backed material (D).
Form boom so that microphone is situated in-front of and just touching your
lips in the centre. Check that down lead and boom are well secured and wires
are tidily tucked away. Carefully check the opening and closing of the front of
the helmet does not snag the boom or down lead.
Test the headset and reposition microphone and speakers if required.
Refit neck collar.
Please note that due to the design of this helmet, positioning of the speakers is
limited and as such it may not be possible to position the speakers directly in
line with your ears. If this is the case one cannot expect the sound to be good
when using earplugs.
Step 1
Viewed from
underside of Helmet
with chin bar open
and neck collar
removed
Step 2
Pass
boom
assembly
under flap
in direction of
arrow
Fit speakers in the ear
pockets under the
velcroed flaps.
Tuck speaker wire away around the
back of the lining underneath the
groove for the neck collar
Step 3
The boom is tucked
tight into groove above
the cheek pad and
under the chinstrap
mounting
Align boom across
the top of the
cheek pad
D
View from underside
of Arai type
helmet
Remove
straps and lift out
each cheek pad
individually
Boom and Mic
assembly
Trap Boom (or tape) between cheek
pad and outer shell
Return Assembly as
removed
View from underside
of Shoei type
helmet
Remove
straps and
lift out complete
Peel back tape and lining, Slide
Speaker inside pushing it right up to
the strap hole
Return Assembly as
removed
Tape to hold in place
Boom and Mic
assembly
Basic principle of how most helmets are made, come apart and
go back together.
The fabric is either taped or
elasticated over the polystyrene and
so it is easy to install the speakers
behind the lining. Note that the
wire should come out of the speaker
towards the back of the helmet.
When replacing the cheek pads,
trap the boom between
the outer shell and the inner
cheek pads plastic tongue
if it has one. Tape or glue if
required. Do not modify the
helmet.