TM 55-1925-284-14&P
0025 00
WARNING
Toxic and flammable vapors are generated in the sewage system. Provide venti-
lation from outside source. Avoid open flames and prolonged breathing of fumes.
Failure to comply with this warning can result in serious injury to personnel and
damage to the vessel.
Sewage is a common mode of transmission for parasitic organisms that may
have the capability of causing communicable diseases. After coming in contact
with sewage or contaminated equipment, be sure to clean yourself with a disin-
fectant soap. Avoid sewage contact with skin abrasions, punctures, cuts, and
other open wounds. Wipe up and clean any spills and/or contaminated equip-
ment using a disinfectant soap. Failure to comply with this warning can result in
serious illness.
! CAUTION
Never attempt to disconnect union connections with only one wrench. Damage to the
vessel's standing piping could occur. Always use the two wrench method to disconnect
piping unions.
4. Disconnect the inlet union (figure 2, item 1) and outlet union (figure 2, item 2) from the pump (figure 2, item 3)
using the two wrench method.
5. Remove the four bolts (figure 2, item 4), four nuts (figure 2, item 5), and four lockwashers (figure 2, item 6)
that secure the motor (figure 2, item 7) to the mounting plate (figure 2, item 8). Discard the lockwashers.
6. Remove the entire Marine Sanitation Device (MSD) discharge pump (figure 2, item 3) and attached motor
(figure 2, item 7) to a suitable work area.
7. Disconnect the inlet fitting (figure 2, item 9) and outlet fitting (figure 2, item 10) from the pump (figure 2,
item 3).
0025 00-3
