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TM 55-1905-223-24-18-1
Repair/Replace Motor Control Center, Auxiliary Machinery Vent Room No. 1
a. Removal, b. Replacement.
This task covers:
INITIAL SETUP
Equipment Condition
Tools
On ship service switchboard turn OFF
T o o l kit, electrician's,
AUX MCHRY MCC circuit breaker and
tag "Out of Service - Do Not
Operate."
Materials/Parts
Following motor controllers removed as
specified in paragraphs 2-222 and
Warning tags, Item 1, Appendix C
224.
L.O. Emergency Prelube Pump No. 1 and
No. 2.
Air Compressor No. 1 and No. 2
Main Engine Jacket Water Heater No. 1
and No. 2
SSDG Jacket Water Heater No. 1 and No.
2.
REMOVAL
NOTE
The following procedure describes actions required to make
Auxiliary Machinery Vent No. 1 Motor Control Center ready
for removal from vessel.
a.
Remove associated hardware from top cover panel (2, FIGURE 2-196) and remove
panel.
b.
Tag and disconnect all incoming wiring (1) to controller bus bars and
terminals.
Remove associated hardware anchoring motor control center (3) to metal deck
c.
mounting pads.
NOTE
Several crew members are required to remove
controller unit (3) from its mounted
position.
Lift motor control center (3) up from mounting pads and place on engine room
d.
deck.
Change 1
2-769


 


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