Section XII. MAINTENANCE OF ERDLATOR RAW WATER PIPING VALVES, PRESSURE GAGE AND SIGHT GLASS

Figure 4-42. Erdlator Agitator Drive Shaft Assembly, Disassembly and Reassembly.

Figure 4-43. Slurry Feeder Raw Water Piping, Removal and Installation.

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(4) Inspect all threaded parts for damaged

c. Disassembly. Refer to figure 4-42 and disas-

threads.

semble the drive shaft, flexible couplings, and pil-

low block bearings.

(5) Inspect for worn key and keyways.

d. Clean, Inspect and Replace.

(6) Replace all unserviceable parts.

(1) Clean all parts with dry cleaning solvent

e. Reassembly. Refer to figure 4-42 and reas-

P-D-680.

semble the drive shaft, flexible couplings and pillow

block bearings.

(2) Inspect the shaft for misalignment.

f. Installation. Install the agitator drive shaft,

(3) Inspect the pillow blocks for cracks and

flexible couplings, and pillow block bearings as

rough or noisy bearings.

shown in figure 4-41 to insure proper adjustment.

Section XII. MAINTENANCE OF ERDLATOR RAW WATER PIPING VALVES,

PRESSURE GAGE AND SIGHT GLASS

amount of slurry ejected is controlled by the setting

WARNING

of the hand controlled variator.

Dry cleaning solvent, P-D-680, used to

b. Removal.

clean parts, is potentially dangerous.

(1) Remove the raw water piping between the

Avoid repeated and prolonged

main raw water line and slurry feeder (fig. 4-43).

breathing of the vapors and skin con-

(2) Refer to figure 4-43 and remove the lime-

tact with the liquid. Do not use near

stone slurry ejector.

open flame or excessive heat. Use in a

well-ventilated area. The flash-point

c. Disassembly. Refer to figure 4-44 and disas-

of P-D-680 is 100-138 F (38-69 C).

semble the slurry ejector.

d. Clean, Inspect and Repair.

4-43. Raw Water Piping Between Main Raw

(1) Clean all parts with dry cleaning solvent

Water Line and Slurry Feeder.

P-D-680.

a. Removal. Refer to figure 4-43 and remove the

(2) Inspect all parts for damage.

raw water piping between main water line and

(3) Repair or replace all damaged parts.

slurry feeder.

e. Reassembly. Refer to figure 4-44 and reas-

b. Clean, Inspect and Repair.

semble the slurry ejector.

(1) Clean all parts with dry cleaning solvent

f. Installation.

P-D-680.

(1) Refer to figure 4-43 and install the lime-

(2) Inspect all parts for damage.

stone slurry ejector.

(3) Replace all damaged parts.

(2) Install raw water piping between main

c. Installation. Refer to figure 4-43 and install

raw water line and slurry feeder.

the raw water piping between main water line and

slurry feeder.

4-45. Raw Water Flow Indicator.

a. General. The raw water flow indicator is lo-

4-44. Limestone Slurry Ejector.

cated in the raw water line between the inlet hose

a. General. The slurry ejector is located on the

and the top of the erdlator. It indicates in gallons

side of the slurry feeder. It ejects limestone slurry

per minute the amount of raw water being pumped

from the slurry feeder to the erdlator tank. The

to the erdlator tank.

4-87

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