TM 5-4610-218-34
d. Clean, Inspect and Repair.
(5) Inspect the gear and worm for cracked
or broken teeth and worn keyways.
(1) Clean the speed reducer with dry clean-
ing solvent P-D-680.
(6) Inspect the shaft for damaged threads,
worn key ways, misalignment, and cracks.
(2) Inspect the input and output shaft seals
for wear, deterioration, bent or distorted casings
(7) Inspect the housing, side cover, and
and other damage.
bearing adapter for cracks and other damage.
(3) Inspect the bearings for corroded or pit-
(8) Replace all unserviceable parts.
ted surfaces and wear. Revolve the bearings by
e. Reassembly. Reassembly of the agitator
hand and check for rough spots.
speed reducer is the reverse of the disassemble y
(4) If the seals and bearings are in ser-
process as described in figure 4-4.
viceable condition, cover them with a thin coat
f. Installation. Install the agitator speed re-
of light oil and wrap them in a lint-free cloth or
ducer as shown in figure 4-3.
waxed paper.
Section III. ERDLATOR AGITATOR SHAFT ASSEMBLY
WARNING
(1) Disconnect the electrical connections
from the erdlator agitator drive motor as illus-
trated in figure 4-5.
Dry cleaning solvent, P-D-680,
used to clean parts, is potentially
(2) Remove the electrical cable clamps secu-
dangerous. Avoid repeated and
ring cables to the bridge rail assembly.
prolonged breathing of the vapors
(3) Remove the effluent launder connecting
and skin contact with the liquid.
tube and adjustable support rods from the
Do not use near open flame or ex-
bridge rail assembly as illustrated in figure 4-6.
cessive heat. Use in a well-venti-
lated area. The flash-point of P-D-
(4) Refer to figure 4-7 and remove the nuts,
680 is 100-138F (38-59C).
washers, and screws that secure the downcomer
tube to the bridge rail assembly.
4-3. Erdlator Agitator Shaft Assembly.
(5) Refer to figure 4-8 to disconnect the
union connecting the aspirator manifold assem-
a. General. The erdlator agitator shaft assem-
bly consists of a tubular shaft with five disks at-
bly to the raw water piping.
tached (fig. 1-4). A hub is riveted to each disk
(6) Remove the dust cover of the flexible
and the hubs are fastened to the shaft with
coupling shown in figure 4-8, and remove the
headless pins. A rubber sleeve bearing in the
chain to disconnect the two halves of the flex-
lower end of the shaft is held in palce by two
ible coupling.
setscrews. The shaft has holes drilled in it to
(7) Lift the bridge rail assembly (with at-
allow the water to circulate and cool the rubber
tached drive components) up and away from the
bearing. The agitator bearing support is moun-
ted to the bottom of the erdlator tank and the
erdlator tank.
stub shaft is secured in the bearing support with
(8) Lift the erdlator agitator shaft up
a setscrew. The stub shaft supports the lower
through the van body roof hatch opening.
end of the agitator shaft assembly and keeps the
(9) Lift the downcomer tube up through the
agitator disks and shaft centered in the erdlator
downcomer tube.
van body roof hatch opening.
b. Removal.
(10) Refer to figure 4-9 and remove the er-
dlator agitator shaft-bearing support.
WARNING
semble the agitator shaft and disks.
Be sure to disconnect the main
power supply before proceeding
with the following steps.
4-5
