6. Evaluate the fit according to the following criteria:
a. The earcups should surround the ears completely.
b. The earseals should be compressed to the greatest degree possible
without discomfort.
c. The overall fit should be comfortable; no hot spots or pressure points
should exist.
NOTE
After evaluating the fit, you will unfasten the chinstrap and doff
the helmet as instructed in Steps 7 and 8. If the helmet fulfills
all of the criteria listed in Step 6, mark and store the helmet as
required. If the earcups do not surround the ears completely,
refer to “Adjustment #1: Earcup Centering.” If the earseals are
not sufficiently compressed, refer to “Adjustment #2: Earseal
Compression.” If the overall fit is too tight or too loose, or hot
spots or pressure points exist, refer to “Adjustment #3: TPL
Custom-Fitting.”
7. Have the crewmember unfasten the chinstrap by unsnapping the strap and
disengaging the strap through the right-hand (as worn) D-ring.
8. Have the crewmember doff the helmet as follows:
CAUTION
Spread the helmet slightly – just enough to allow ease of
doffing. Excessive spreading may damage the helmet.
a. Hook the thumbs in the earcups and spread the helmet at the earcup
area.
b. Roll the helmet upward and rearward as shown in Figure 8.
Figure 8. Doffing Helmet
7
To Next Page
Loading...
