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 TM 55-1905-223-10
Table 2-2. Operator/Crew Preventive Maintenance Checks and Service - CONT
B - Before
D - During
A - After
W - Weekly
M - Monthly
INTERVAL
PROCEDURES
EQUIPMENT IS
ITEM
ITEM TO BE
CHECK FOR AND HAVE REPAIRED
NOT READY/
NO
B
DA W M
INSPECTED
OR ADJUST AS NECESSARY
AVAILABLE IF:
10
Sound Powered
Check the two-way voice
l
l
Telephones -
capability of the headset.
Continued
Select another station on the
system and conduct a two-way
conversation. Transmission and
receptions should be clear,
undistorted and easily
understood.
Document all observed
discrepancies or unit
malfunctions and refer to unit
maintenance.
l b. Handset
Visually inspect the handset
l
and wiring for loose
Exterior
connections. Tighten as
necessary. Visually inspect
exterior for damage or dirt
buildup. Clean using a soft,
clean cloth.
Hardware
Inspect mounting hardware for
l
tightness. Tighten as
necessary.
Rotary
Check mechanical operation of
l
l
Switches
each rotary switch. Document
any worn part or incorrectly
operating parts and refer to
unit maintenance.
Operation
Check the two-way voice
l
capability of the unit Select
other stations and conduct a
two-way conversation.
a. Transmissions and receptions
l
should be clear, undistorted
and easily understood.
2-216
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