ATN 3 manual 2 Operator Troubleshooting for ATN NVM-14 cont, Malfunction, Test or inspection

Table 6.2 Operator Troubleshooting for ATN NVM-14 (cont.)

Malfunction	Test or inspection	Corrective Action
6. Diopter adjust-	Check to see if the diopter adjustment ring	If damaged, refer to higher level of
ment cannot be	is bent or broken	maintenance.
made
7. Battery adapter	• Visually inspect for the presence of an	• If o-ring is missing, replace.
difficult to remove.	o-ring
	• Check for damaged battery adapter.	• If damaged, refer to higher level of
		maintenance.
8. Head straps	Check for defective buckles, fasteners or	If damaged, refer to higher level of
cannot be tightened	straps.	maintenance.
9. Headmount	• Check socket or latch for dirt.	•	Clean socket and latch.
or helmet mount	• Check socket or latch for damage.	• If damaged, return both headmount or
socket and
		head/helmet mount adapter to higher
head/helmet mount
		level of maintenance.
adapter latch does
not catch.
10. Helmet mount	Inspect mounting hardware for damage.	If damaged, refer to higher level of
will not tighten to		maintenance.
helmet.