TM 5-3610-257-14
Table 8-1. 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
IN
FOR READINESS
ITEM TER
ITEM TO BE INSPECTED
REPORTING
NO.
VAL
PROCEDURES
EQUIPMENT IS
NOT READY /
AVAILABLE IF:
VIEWING STAND ASSEMBLY - Cont
2
D
Inspect Light Box Assembly Exterior.
1.
Check lens assembly knobs for security.
3.
Place toggle switch in up position and check for
Fluorescent
full illumination of fluorescent lights.
light(s)
will not
light.
3.
Place toggle switch in down position and check for
Incandescent
full illumination of red incandescent lights.
light(s)
will not light.
4.
Check for looseness of toggle switch.
Tighten if necessary.
3
B
Inspect Light Box Assembly Interior.
WARNING
Death or serious injury may occur from
electrical shock unless power cord is
unplugged before servicing.
1.
Turn off circuit breaker.
2.
Check for loose incandescent and fluorescent
lights.
3.
Clean interior with dry cheesecloth.
8-6
