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 TM 55-1905-223-10
gas shall be accomplished using the sampling pump which has been issued at the time of
FM-200 system installations. Maintenance instructions for the sampling pump are
contained in TM 55-1905-243-24&P. A minimum of three (3) samples at two (2)
minute intervals shall be taken.
j.
Re-Entry
(1) Engine Room Re-Entry Procedures. Upon issuance of re-entry authorization by the person
in charge at the scene and authorization to ventilate space, the following actions shall be
taken:
- Open Port and Starboard Engine Room Supply Fan openings
- Reset Plunger on Pressure Switches
NOTE
FM-200 pressure switches must be manually reset by pushing down
on the plunger, on top of pressure switch. Plunger must be returned
to "set" position to reactivate all systems shutdown by pressure
switch.
- Start all available powered ventilation within the protected space
- Washdown complete interior and all equipment, within the protected
space with fresh water.
(2) Tunnel Re-Entry Procedures. Upon issuance of re-entry authorization by the person in
charge at the scene and authorization to ventilate space, the following actions shall be
taken:
- Open tunnel supply fan opening
- Open tunnel vent watertight closures openings (3)
- Reset pressure switch plunger
NOTE
FM-200 pressure switches must be manually reset by pushing down
on the plunger, on top of pressure switch. Plunger must be returned
to "set" position to reactivate all systems shutdown by pressure
switch.
- Start all available powered ventilation within the protected space
- Washdown complete interior and all equipment, within the protected
space, with fresh water
(3) Bow Thruster Room Re-Entry Procedures. Upon issuance of re-entry authorization by the
person in charge at the scene and authorization to ventilate, the following actions shall be
taken:
- Open bow thruster room supply and exhaust vent opening
- Reset plunger on pressure switches
NOTE
FM-200 pressure switches must be manually reset by pushing
down on the plunger, on top of pressure switch. Plunger must
be returned to "set" position to reactivate all systems shutdown
by pressure switch.
Change 10
2-739
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