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Preventive Maintenance Checks and Services
Table 2-1.
S - Semiannually A - Annually
Q - Quarterly
D - Daily W - Weekly M - Monthly
Items To Be
Interval
Item
Procedures
Inspected/
No.
D
W
M
Q
S
A
Serviced
CONTROL CENTERS/SWITCHBOARDS
NOTE
Ship
q
78
Service/Emerg
Maintenance procedures for
ency
the Ship Service and
Switchboard
Emergency Generator
Switchboards are the same.
Ground Detection Test.
(1) Depress GND DETECTION TEST pushbutton.
(2) Observe GND DETECTION LIGHTS. If any phase is
grounded that lamp will extinguish and the
remaining lamps will glow at full brilliance.
When no phase is grounded all three lamps will
glow at half brilliance.
q
Motor Control
79
WARNING
Centers
All compartments may
contain hazardous
voltages. Use CAUTION
when checking equipment to
prevent equipment damage,
personal injury, or
electrocution.
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