TM 5-4610-218-12
Figure 4-49. Raw Water Sight Glass Assembly, Disassembly and Reassembly.
4-50. Low Water Level Alarm Float Assembly.
4-49. Aspirator Manifold Assembly.
a. General. The low water level float in the wet
a. General. The four aspirators are located at
well operates a valve in the raw water line, This
the ends of the raw water piping above the erdlator
valve regulates the amount of water going into the
tank, They direct the raw water into the influent
erdlator tank. When the float drops, the operating
launder and provide aeration of the raw water.
mechanism opens the valve and makes contact with
a sensitive switch and actuates an alarm system.
aspirator manifold assembly.
low water level alarm float assembly.
semble the aspirator manifold assembly.
d. Clean, Inspect and Repair.
semble the low water level alarm float assembly.
(1) Clean all parts with dry cleaning solvent
d. Clean, Inspect and Repair.
P-D-680, Be sure the aeration holes in the aspirator
(1) Clean all metal parts with dry cleaning
are freed of mineral deposits. A wire bush may be
solvent P-D-680.
used to aid cleaning.
(2) Clean the rubber float with water or a non-
(2) Inspect all parts for damage.
mineral base solvents.
(3) Replace all damaged or defective parts.
(3) Inspect the float for holes or other dam-
age.
semble the aspirator manifold assembly.
(4) Inspect the float rod lever and forks for
misalignment.
the aspirator manifold assembly.
(5) Inspect all threaded parts for damage.
4-94
