Operation Manual

2-8
ITEM
NO.
INTER-
VAL
LOCATION
PROCEDURE
NOT FULLY
MISSION
CAPABLE IF:
CHECK/
SERVICE
3.
Cont.
Before/ After
Battery Cap/ Housing Cont.
Turn monocular OFF and then ON to reen- ergize monocular.
NOTE
If the monocular fails this highlight cut-off test, it does not cause the end item to be nonmission capable. However, it should be sent to higher level of maintenance as soon as possible. Check gain control for free movement and operation per paragraph 2.25.
Knob is not free moving or does not vary gain.
4 Before/
After
Monocular Inspect for cracks or damage. Scratches,
cracks, chips and gouges are OK if opera- tion is not affected.
Cracks or damage in the monocular.
5 Before/
After
Eyepiece Lens Rotate diopter adjustment to make sure
the eyepiece lens moves freely and is not loose. Range is approximately ½ turn.
Binding, not moving freely or too loose.
6 Before/
After
Eyecup Inspect for dirt, dust, cracked or torn eye-
cup. Inspect for bent, broken, or improper- ly fitting eyepiece lens. If necessary, clean with water.
Chips and cracks are permitted on the eye- cup retaining rings as long as they do not interfere with instal- lation of eyecup.