the second locking position of the receiver and
NOTE: If leaks occur between faceform
adjust the straps until the mash is snug and
and face, check to see if proper mask size
comfortable. Attach the straps in place with two
has been issued. If leakage still occurs,
turns of E thread. Perform a functional check
adjust helmet bayonet receivers. Refer to
on the oxygen mask.
table 4-4 for troubleshooting procedures.