Gentex HGU-56/P, Operation And Maintenance Instructions

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CAUTION
When donning or removing the helmet, flex the helmet just enough to clear the head.
Excessive flexing may damage the helmet.
2. Have the wearer don the helmet as
follows:
a. Grasp the helmet as shown in
Figure 2-43 , and flex the helmet
slightly to clear the head.
b. Position the helmet firmly against
the forehead; rotate the helmet
rearward and down onto the head.
c. Press the helmet down firmly with
both hands to ensure that the
helmet is properly positioned on the
head.
3. Align the front edge of the helmet with
the FRP (marked in Step 4 on Page 6).
4. Ask the wearer to evaluate the fit. As
applicable, do any of the following:
• If a pressure point exists in the center
of the forehead, refer to
Figure 2-44
and add headband fitting pads
between the TPL or SCL and the
energy-absorbing liner to either side of
the pressure point to even the
pressure.
•
If any pressure point remains, TPL
custom fitting may be required; refer to
Paragraph 2-6 (Page 36).
• If the fit is too loose, try a smaller-size
helmet and repeat Steps 2 through 4.
(Continued on next page)
28
Figure 2-43. Grasping Helmet
Figure 2-44. Position of Headband Fitting
Pads
Headband fitting pads
When donning the helmet, ensure that nape strap pad is completely pulled down and
that its attachment tab is taut. Failure to do so will decrease helmet stability and may
cause injury to the wearer.