TM 55-1930-209-14&P-19
Section II
Table 12-4.
Preventive Maintenance Checks and Services for Communications Systems
B -
Before
D -
Daily
Q - Quarterly
D -
During
W -
Weekly
S - Semiannually
A -
After
M -
Monthly
A - Annually
INTERVAL
ITEM
PROCEDURES
EQUIPMENT
ITEM
TO BE
CHECK FOR AND HAVE
IS NOT READY/
NO.
INSPECTED
REPAIRED OR ADJUSTED
AVAILABLE IF
B D A D W M Q S A
AS NECESSARY
COMMUNICATION
SYSTEMS
1
Radio System
WARNING
Do not touch Army radio antenna while
radio is operating. Antenna contains high
voltage which will seriously injure a person
touching the antenna during transmissions.
Be sure that electrical power is OFF before
performing any maintenance on electrical
(communication) systems. Redtag appropri-
ate switches and circuit breakers with:
"WARNING - DO NOT ACTIVATE. REPAIRS
BEING MADE." Observe all safety precau-
tions listed at the beginning of this manual.
a. Make sure Army and Marine radio instal-
lations are complete, connected to a
power source and electrically connected.
b. Make sure walkie-talkie battery pack is
fully charged. Replace if necessary.
c. Check battery charger indicator lights for
Battery charger
proper operation. Notify shift leader or
indicator lights
bargemaster for corrective action.
inoperable.
CAUTION
Use only clean water and a cloth to clean
plastic surfaces. Do not paint plastic sur-
faces. Damage to plastic will result if
cleaned with solvent or painted. Avoid dam-
age to insulation and mounting system. DO
NOT impair electrical/electronic properties
of item being cleaned. DO NOT use solvents
to clean internal parts of electrical/electronic
components.
d. Clean components as follows:
1) Vacuum internal portions of electrical
components.
2) Wipe dirt from external components,
except plastics, with dry cheesecloth
or, if necessary, with a soapy cloth.
Cloth should be damp, but not drip-
ping wet.
12-4
