TM 5-6675-322-14
Table 5-1.
OPERATOR PREVENTIVE MAINTENANCE
NOTE
CHECKS AND SERVICES
If the equipment must be kept in continuous operation, check and service
only those items that can safely be checked and serviced without
disturbing operation.
Make the complete checks and services when the
equipment can be shut down.
lN-
TER-
VAL
B - Before
W - Weekly
AN - Annually
(Number) - Hundreds of Hours
D - During
M - Monthly
S
- Semiannually
A - After
Q - Quarterly
BI - Biennially
ITEM
NO.
1
B
ITEM TO BE INSPECTED
PROCEDURE
LENS-PRISM-MIRROR STEREOSCOPE
Inspect Stereoscope.
1.
Inspect frame for bending and twisting.
2.
Inspect mirror covers for tears, broken snaps,
and fungi .
3.
Inspect legs for bends, breaks, and loose hinges.
4.
Inspect mirrors for cracks, chips, and defective
silvering.
5.
Place white sheet of paper under mirrors and
look through optical system to detect chips,
c r a c k s , o r f u n g i .
For Readiness
Reporting,
Equipment is
Not Ready/
Available If:
M i r r o r s
are
broken.
5-6
