16
Chapter 2: Helmet Preparation and Operation
Procedure
Install the bayonet receiver parts on the helmet as follows:
1.
Raise the visor; have the aircrew member don the properly fitted helmet.
2. Insert the mask bayonets into the bayonet receivers to the second locking position.
Ensure that all straps are fully extended, have equal tension, and flow smoothly from the
mask to the facepiece and the bayonets.
3. Center the oxygen mask on
the aircrew member’s face.
Lower the visor to check the
interface between the visor
and the mask.
4. With the mask and the helmet
symmetrically positioned,
place the bayonet receiver on
the helmet with the projection
facing aft as shown in
numbered side of the receiver
faces the helmet shell.
5.
Hold the receiver firmly
against the helmet. Referring
to
around the receiver with a
pencil. Repeat for the other
side.
6. Remove the receivers and the
mask from the helmet; have
the aircrew member remove
the helmet.
(Continued on next page)
When performing Step 3, do not
position the bayonet receivers
on top of the edgeroll. Improper
function, jamming, or damage
to the hardware may result if the
bayonet does not lie flat against
the helmet shell.
CAUTION
Pilot
Technician
Figure 2-15. Positioning Bayonet Receiver
Figure 2-16. Tracing Outline of Bayonet Receiver
