MAINTENANCE OF PIPING SYSTEM, BOWTHRUSTER
3-255. REPLACE/REPAIR WELDED VALVES.
This task covers:
Tool kit, general mechanic's,
At Ship Service Switchboard, set FWD
DECK MCHRY MCC circuit breaker to
Torch outfit, cutting and
OFF position. Tag switch "Out of
welding medium duty, oxygen
Service- Do Not Operate."
and acetylene, 3433-00-357-8116
Tool kit, welder, 5180-00-754-0661
General Safety Instructions
Piping system, bowthruster
Ensure system is tagged to prevent
P/N 8561034, refer to
operation during maintenance.
Warning tags, Item 1, Appendix C
Generated pressure could cause
Utility pail, Item 13, Appendix C
Use extreme care when breaking
system connections. Escaping
pressure and/or fluids could
Clean up spills immediately. Spills
create an unsafe working area.
Exercise extreme caution when
working with flammables.
Refer to paragraph 3-228 for procedures.