5. In stall the re place ment swivel as sem bly with the cupped side of the con cave washer
against the out side of the hel met shell.
6. Using ad he sive MIL-A-5540, re at tach the pile fas tener to the hel met shell.
7. Re in stall the earcup.
8. Check earseal com pres sion and hel met fit in ac cor dance with para graph 2-2.
3-15
Fig ure 3-15. Boom Swivel As sem bly
SWIVEL ASSEMBLY
SHAFT
FLAT WASHER
CONCAVE WASHER
WASHER (INSIDE HELMET)
SCREW
