TM 5-6675-323-14
Table 11-1. OPREVENTIVE MAINTENANCE CHECKS AND SERVICES
NOTE
I f the equipment must b e kept in continuous operation, check and service
only those items that can safely be checked and serviced without
d i s t u r b i n g o p e r a t i o n . M a k e the complete checks and services when the
e q u i p m e n t can be shut down.
AN - Annually
(Number) - Hundreds of Hours
W - Weakly
B - Before
S - Semiannually
M - Monthly
D - During
BI - Biennially
Q- Quarterly
A - After
For Readiness
ITEM TO BE INSPECTED
Reporting,
IN-
ITEM
Equipment Is
TER-
PROCEDURE
NO.
Not Ready/
VAL
Available If:
LENS-PRISM-MIRROR
STEREOSCOPE
Inspect Stereoscope.
1
B
1.
Inspect frame for bending and twisting.
2.
Inspect mirror covers for tears, broken snaps,
and fungi.
Inspect legs for bends, breaks, and loose hinges.
3.
Mirrors
4.
Inspect mirrors for cracks, chips, and defective
are
silvering.
broken.
5.
P l a c e white sheet of paper under mirrors and
look through optical system to detect chips,
cracks, or fungi.
11-6