TM 5-6675-321-14
Table 3-1. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES - Cont
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
IN-
TER-
VAL
B
ITEM TO BE INSPECTED
PROCEDURE
PORTABLE FILM VIEWER - Cont
Inspect Viewer - Cont
2.
3.
4.
5.
6.
7.
8 .
9.
10.
11.
WARNING
Death or serious injury may occur if portable
film viewer is operated with defective power
c o r d.
Plug in power cord.
Turn power switch ON.
Observe even lighting of viewing surface.
Turn power switch OFF.
Unplug power cord.
Rotate crank handles to right and left. Observe
f r e e r o t a t i o n .
Check rollers for free movement.
Pull crank handles away from viewer. Spring
t e n s i o n w i l l r e t u r n h a n d l e s t o o r i g i n a l p o s i t i o n
when released.
Turn power switch OFF.
Unplug power cord.
For Readiness
Reporting,
Equipment Is
Not Ready/
Available If:
3-7
