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 TM 55-1905-223-24-18-1
2-294.
Ship Service Switchboard Indicators, Gauges, Meters, Switches,
Variable
Resistor, Rheostat, Circuit Breaker.
This task covers:
a. Disassembly, b. Repair, c. Assembly, d. Test.
INITIAL SETUP
Equipment Condition
Tools
Tool kit, electrician's,
Power to ship service switchboard OFF,
locked out, and tagged "Out of
Service - Do Not Operate."
Materials/Parts
All switchboard circuit breakers OFF.
Voltmeter P/N 50-103021PZRX
Incandescent lamps P/N 686-6120V
Wattmeter P/N 50-103221ARBU7CNA
Rheostat P/N SA502A
Variable resistor P/N 534
Rotary switch P/N 16SB1AA1 (Mod)
Rotary switch P/N 16SB1CA20
Rotary switch P/N 16SB1CF23
Rotary switch P/N 16SB1AA1 (Mod)
Ammeter P/N 50-103131LSSS
Manual voltage regulator P/N MVR-1
Light lenses P/N 80-0535-300
Frequency meter P/N 50-1033-72ANAN
Circuit breaker P/N AKR-5D-50
Warning tags, Item 1, Appendix C
WARNING
Electrocution, serious injury, or equipment
damage can result from contact with live
e l e c t r i c a l circuits. Before beginning work
on electrical systems, ensure electrical
power is OFF, locked out and tagged to
prevent turn on during maintenance.
Change 1
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