TM 5-4220-22614&P
5-13. Helmet Shell Maintenance - continued.
(4) Apply silicone sealant to all weight mounting hardware. Attach rear weight (11), left side weight (9),
and right side weight (1 0) to the helmet shell using screws (7) and washers (8).
(5) Attach cushion snap tabs (6) with screws (5).
(6) Install communications posts (4) using nuts (2) and washers (3).
(7) Apply silicone lubricant to new preformed packing (1) and install packing on base of helmet shell.
5-14. Helmet Adapter Hose Maintenance.
This task covers:
Test
INITIAL SETUP
Equipment Conditions
Helmet adapter hose removed (para 4-19).
Test
a. Connect male and female fittings of test hose to opposite fitting on two other Helmet Adapter Hoses.
WARNING
Hydrostatic testing is potentially dangerous due to the high
pressures involved and unpredictable results.
b. Subject hoses to an internal hydrostatic pressure of 600 psig.
c. Check for slippage of test hose out of fittings, cracking of outer rubber cover, soft spots or bulges on
hose body, cuts, tears, and shape change in couplings.
d. If any of the above occur due to test, replace hose immediately.
5-14
