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 TM 55-1905-223-24-18-1
Replace/Repair Control Unit Assembly (Bowthruster).
This task covers:
a. Removal, b. Disassembly, c. Repair, d. Assembly,
e. Replacement.
INITIAL SETUP
Equipment Condition
Tools
T o o l kit, electrician's,
Electrical power to bowthruster
control system secured and
tagged "Out of Service - Do Not
Operate." (TM 55-1905-223-10)
Materials/Parts
Light lens (red) P/N 1051399
Indicator light P/N 1054978
Incandescent lamp P/N 1063250
Pushbutton P/N 1054976
Lock switch P/N 1051704
Buzzer P/N 1032141
Cartridge fuse P/N 1069895
Relay P/N 1026045
Rotary switch P/N M522STK
Transmitter indicator P/N 4081468
Terminal box P/N 1011586
Level switch P/N 1012099
Rotary switch P/N S2JRM3B2
Lever switch P/N 10250T3011
Push switch P/N 10250T2
Warning tags, Item 1, Appendix C
U t i l i t y p a i l , Item 13, Appendix C
Wiping rags, Item 14, Appendix C
a. Remove Rotary Switch.
To avoid electrical shock, make sure power to switch is
secured and tagged "Out of Service - Do Not Operate."
(1) Remove four retaining screws (1) securing cover (2).
(2) Remove cover, tag and disconnect electrical leads to rotary switch (4).
(3) Remove hex head nut (3) securing rotary switch to cover.
Change 1
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