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 ARMY
TM 9-6650-235-13&P
MARINE CORPS
TM-08552A-13&P
Table 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (CONT)
B--Before Operation
D--During Operation
A--After Operation
Interval
ITEM TO BE INSPECTED
Equipment
Item
Is not Ready/Available
No.
B
D
A
PROCEDURE
If:
4
OBJECTIVE TUBE ASSEMBLY (Cont)
d. To service the objective tube
assembly (2), clean the lens
(1) with the brush provided
in the socket wrench case or
lens paper (item 10, app D).
5
BORESCOPE EXTENSION TUBES
a. Inspect for broken electrical
Electrical contacts are
contacts.
broken.
b. lnspect all connecting parts
for ease of assembly. Check
for burrs on mating surfaces.
Remove burrs using abrasive
cloth (item 3, app D) or fine
sandpaper (item 9, app D).
2-7
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