STEP RESULT/REMARKS
WARNING
TPL PLASTIC WILL BE HOT TO
TOUCH. AVOID BURNING HANDS.
WEAR GLOVES IF
NECESSARY.
6. Squeezing sides of TPL together to
clear earcups, place TPL in helmet
with label and holes facing front.
7. Align TPL to protrude approximately
1/4" past energy-absorbing liner.
- Ensure TPL is centered within the
helmet.
- Do not be concerned if rear of TPL
extends beyond energy-absorbing liner.
CAUTION
HOT TPL PLASTIC LAYERS ARE
SOFT. WHEN PERFORMING STEP 8,
DO NOT PRESS TOO HARD IN ANY
ONE AREA; THIS WILL DEFORM TPL.
8. Position TPL crown into helmet.
9. Have crewmember don helmet. - To ensure TPL does not bunch up in
rear during donning, hold rear of TPL
against energy-absorbing liner while
crewmember dons helmet. (See
Figure 12.)
10. With hands on top of helmet, press
down until ears are centered in
earcups. Hold for three to five
minutes.
(Continued on next page)
- Ensure entire ear is surrounded by
earcup; press helmet down further if
necessary.
- Chinstrap may be fastened to hold
helmet in position.
- Ensure helmet shell is centered
comfortably on head.
- Lower visors to check centering and
nose clearance.
11
Figure 12. Donning Helmet with Heated TPL
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