Table 4-1.
OPERATOR PREVENTIVE MAINTENANCE CHECKS
B - Before
D - During
A - After
lTEM
NO
B
W - Weekly
M - Monthly
AN
- Annually
s . - Semiannually
Q - Quarterly
Bl
- Biennially
TM 5-6675-317-14
AND SERVICES - Cont
(Number)
- Hundreds of Hours
ITEM TO BE INSPECTED
PROCEDURE
ZOOM TRANSFER SCOPE - Cont
Inspect - Cont
WARNING
Death or serious injury may occur from electrical
shock unless power cord is unplugged before servicing.
CAUTION
l
Dirt and dust on optical surfaces will hinder
equipment’s performance.
Do not wipe optical surfaces until dust and for-
eign matter have been removed.
l
Do not touch optical surfaces with bare fingers.
8 .
Check top and bottom of glass stage and optical
surfaces for dirt, dust, and fingerprints.
Use
watchmaker’s blower to remove dust and dirt from
exposed surfaces.
Clean with cheesecloth moisten-
ed with warm mild liquid dishwashing detergent
solution diluted at least 10:1. Use distilled
water for dilution if possible. Wipe surface dry
with clean absorbent cotton swab.
Wipe with
chamois to remove water spots.
4-11
