ATN NVM14 - Page 51

6-7
MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION
5 Light visible
around eyecup
Check eye-relief distance.
Check eyecup for resiliency.
R
e-adjust for proper
eye-relief distance.
If eyecup is defec-
tive, refer to higher
level of maintenance.
6 Diopter adjust-
ment cannot
be made
Check to see if the diopter ad-
justment ring is bent or broken
If damaged, refer
to higher level of
maintenance.
7 Battery adapt-
er difficult to
remove.
Check for damaged battery
adapter.
If damaged, refer
to higher level of
maintenance.
8 Head straps
cannot be
tightened
Check for defective buckles,
fasteners or straps.
If damaged, refer
to higher level of
maintenance.
9 Headmount or
helmet mount
socket does
not catch.
Check socket for dirt.
Check socket for damage.
Clean socket.
If damaged, return
headmount or helmet
mount to higher level
of maintenance.
10 Helmet mount
will not tighten
to helmet.
Inspect mounting hardware for
damage.
If damaged, refer
to higher level of
maintenance.