TM 5-6675-323-14
Table 11-1.
OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Cont
AN - Annually
(Number) - Hundreds of Hours
W - Weekly
B - Before
S - Semiannually
M - Monthly
D - During
BI - Biennially
Q - Quarterly
A - After
For Readiness
ITEM TO BE INSPECTED
Reporting,
lN-
ITEM TER-
Equipment Is
PROCEDURE
NO. V A L
Not Ready/
Available If:
LENS-PRISM-MIRROR STEREOSCOPE - Cont
Clean Stereoscope - Cont
B
2
1.
Blow dirt and dust from optical surface with
watchmaker's blower.
2. Moisten lens paper with optical lens cleaner, and
wipe one optical surface with circular motion from
center toward edges. Discard lens paper.
3.
Dry optical surface by wiping with clean lens
paper using circular motion from center toward
edges.
Discard lens paper.
4.
R e p e a t procedure on each remaining optical surface
and two mirrors.
5.
Turn leg adjustment knurled sleeve to full right,
then to full left, to clear threads.
11-8
