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 TM 55-1925-273-10-2
OPERATOR'S MANUAL
INLAND AND COASTAL LARGE TUG (LT)
PREVENTIVE MAINTENANCE CHECKS AND SERVICES INCLUDING LUBRICATION
RADIO ROOM
Table 1. Operator Preventive Maintenance Checks and Services (PMCS)
ITEM INTERVAL MAN-
ITEM TO BE
PROCEDURE
EQUIPMENT
NO.
HOUR
CHECKED OR
NOT READY/
SERVICED
AVAILABLE IF:
RADIO ROOM
DOOR ALARM
1
Before
0.2
Inspect
Visually inspect security alarm system for
obvious damage, missing parts, and
tampering.
NOTE
Notify pilothouse that alarm is to be
tested.
2
Before
0.2
Test
Open door and verify that both the alarm
buzzer and light are energized. Set rotary
snap switch to OFF position and verify
that both the alarm buzzer is silent and the
light is not lit. Reset the alarm and secure
the door.
Radio Room
Door Alarm
Alarm Switch Board
Located in the Pilothouse
Radio Room
Door Open
Indicator
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