MIL-HDBK-1164
Table 35
Maintenance Checklist for Rapid Mix,
Flocculation, and Sedimentation Basins
Inspection
Action
(1), (2)
Rapid-mix basins
Drain, wash down walls, flush sediment
SA
to waste line. (3)
Repair spalled spots on walls and
bottom. Check valves or sluice gates,
lubricate, and paint as necessary.
Baffled mixing chambers
Clean baffles and repair as necessary.
SA
Flocculator basins
Check paddle rotation to ascertain
M
whether any flocculators are
inoperative.
Clean and lubricate drive, bearings,
SA
gears, and other mechanical parts.
Check underwater bearings for silt
penetration. Replace scored bearings.
Rapid (or flash) mixers
Check paddles. Clean bearings and
SA
drive shaft. Lubricate and paint as
necessary.
Revolving-sludge-collector
Drain tank. Check submerged parts.
SA
basins
Operating parts
Lubricate.
D or W
Speed reducers and Remove water and grit. Replace oil as
W
oil baths
necessary.
Drive head
Lubricate (but do not over lubricate).
D
Worm gear
Check oil level.
W
Drain water from housing.
M
Turntable bearings
Lubricate.
M
Change oil.
SA
174
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