TM 5-6675-323-14
Table 10-1. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Cont
(Number) - Hundreds of Hours
AN - Annually
W - Weekly
B - Before
S - Semiannually
M - Monthly
D - During
BI - Biennially
Q - Quarterly
A - After
For Readiness
ITEM TO BE INSPECTED
Reporting,
IN-
Equipment Is
ITEM
TER-
PROCEDURE
Not Ready/
NO.
VAL-
Available If:
STEREOMETER PARALLAX BAR - Cont
Inspect Parallax Bar - Cont
B
1
4.
Inspect
optical
dots
for
chips,
fingerprints,
or
cracks.
5. Unlock micrometer barrel by releasing lock.
R o t a t e knurled knob and observe free movement
of mount for right optical dot against spring
tension.
Clean Parallax Bar.
B
2
1.
Moisten clean lens paper with lens cleaner.
Wipe optical dot surfaces with moistened lens
2.
paper using circular motion, starting from
c e n t e r and moving toward edge.
Wipe optical dot glass surfaces with fresh, dry
3.
lens paper using a circular motion, starting from
c e n t e r and moving toward edge.
4.
W i p e exposed metal surfaces with clean lens paper
to remove dust or dirt.
10-6
