TM 5-4610-218-34
CHAPTER 5
REPAIR OF CHEMICAL FEED EQUIPMENT
Section I. CHEMICAL SLURRY FEEDER
WARNING
(8) Refer to figure 5-8 and remove the
slurry feeder agitators as illustrated.
Dry cleaning solvent, P-D-680,
c. Disassembly.
used to clean parts, is potentially
(1) Procedures for disassembly of the slurry
dangerous. Avoid repeated and
feeder agitators are illustrated in figure 5-9.
prolonged breathing of the vapors
and skin contact with the liquid.
Do not use near open flame or ex-
slurry feeder shaft, seals and bearings.
cessive heat. Use in a well-venti-
lated area. The flash-point of P-D-
(3) Refer to figure 5-11 and disassemble the
680 is 100-138F (38-59C).
slurry feeder housing.
d. Clean, Inspect and Repair.
5-1. Chemical Slurry Feeder.
(1) Wash all parts in dry cleaning solvent
a. General. The chemical slurry feeder con-
P-D-680 and dry thoroughly.
sists of an aluminum tank divided into two
(2) Inspect for cracks, breaks, wear, dis-
eq ua 1 watertight compartments. The two com-
tortion, and corrosion.
partments are covered with one hinged cover.
Each compartment has four agitators with two
(3) Repair or replace all damaged or de-
measuring cups attached to diametrically op-
fective parts.
posite agitators, a clear plastic window, drain
outlets, collecting funnel, filling connections,
and rate of discharge controller. The chemical
slurry feeder agitators operate from a common
shaft and rotate vertically. Each compartment
functions as a separate unit, permitting two dif-
ferent chemical solutions to be fed at the same
time. The chemical slurry feeder supplies lime-
stone slurry to the erdlator tank and diatomite
slurry to the diatomite dilution tank.
b. Removal.
(1) Remove the raw water piping as shown
in figure 5-1.
(2) Remove the filtered water piping as il-
lustrated in figure 5-2.
(3) Refer to figure 5-3 and remove the chain
guard, remove the chain and chain tightener as
illustrated in figure 5-4.
(4) Remove the slip clutch as illustrated in
(5) Refer to figure 5-6 for removal of tubing
between the dilution tank and erdlator tank.
(6) Remove all other parts as necessary.
(7) Refer to figure 5-7 and remove the chem-
Figure 5-1. Slurry Feeder Raw Water Piping, Removal
and Installation
ical slurry feeder tank as illustrated.
5-1
