Quantcast Repair Screen Assembly. (FIGURE 2-9)

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TM 55-1905-223-24-11
2-14. Repair Screen Assembly. (FIGURE 2-9)
This task covers:
a. Removal
b. Replacement.
Equipment Condition
Tool kit, general mechanic's,
System flushed with water
Electrical power OFF and tagged to
the unit
External sewage inlet and outlet
valves closed
Disinfectant, Item 3, Appendix C
Backwash water supply valve closed
Screen assembly P/N 3500044
Grommet fasteners P/N
Bleach metering valve closed
Rivets P/N 3500043-002
Wire fabric P/N 3500044
Warning tag, Item 10, Appendix C
Toxic and flammable vapors are generated in the sewage system.  Provide
ventilation from outside source before removing treatment tank covers.  Avoid
open flames and prolonged breathing of fumes.
a. Remove the treatment tank cover and gasket (paragraph 2-11).
b. Remove the 12 nylon rivet and grommet fasteners that hold the wire fabric in place (2, 3, FIGURE 2-9).
Cut the fasteners if necessary. Discard the old grommets and rivets.
c. Remove the wire fabric screen (1).


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