ATN OTS-X Series, Operator'S Manual

Page: 39 / 40

4-3
MALFUNC-
TION
TEST OR INSPECTION CORRECTIVE ACTION
5. Battery
cap difficult to
open.
Visually inspect for the pres-
ence of an o-ring.
Check for damaged battery
cap.
If o-ring is missing, refer to
higher level of maintenance.
If damaged, refer to higher
level of maintenance.
4.3. OPERATOR’S MAINTENANCE
PROCEDURES
4.3.1. CLEANING THE SCOPE
CAUTION
• The monocular is a precision electro-optical instrument and
must be handled carefully.
• Do not scratch the external lens surfaces or touch them with
your fingers.
Clean monocular with water if necessary and dry thoroughly. Clean
lenses with lens paper (and water if necessary).
4.3.2. NECK CORD MAINTENANCE
The neck cord (Figure 1.1.) may be broken, frayed, or loose at one
or both ends.
If loose, re-tie cord. If broken or severely frayed, install new cord
as follows:
(1) Insert ends through monocular holes from the rear.
(2) Thread right cord end through hole in objective lens cap.
(3) Tie a knot in each end.