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 TM 55-1905-223-24-18-1
MAINTENANCE OF PIPING SYSTEM, FOAM PROPORTIONERS
Repair Butterfly Valves.
Repair.
This task covers:
INITIAL SETUP
Tools
E q u i p m e n t Condition
Tool kit, general mechanic's,
At Ship Service Switchboard, set FIRE
PUMP 1 and FIRE PUMP 2 circuit
breakers to the OFF position. Tag
Materials/Parts
switches "Out of Service - Do Not
Operate."
Piping system, foam proportioners
P/N 8529048, refer to
TM 55-1905-223-24P
General Safety Instructions
Warning tags, Item 1, Appendix C
U t i l i t y p a i l , Item 13, Appendix C
WARNING
Ensure system is tagged to prevent
l
operation during maintenance.
Generated pressure could cause
injury.
Use extreme care when breaking
l
system connections. Escaping
pressure and/or fluids could cause
injury.
Clean up spills immediately with
1
d i s i n f e c t a n t . Spills create an
unsafe working area.
Exercise extreme caution when
l
working with flammbales.
REPAIR
Refer to paragraph 2-331 for procedures.
2-1040
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