TM 5-4610-218-12
Heater controls.
Figure 2-22.
dicators on the lever arms determines the amount of
ferric chloride and calcium hypochlorite supplied to
the water treatment section.
b. Driving Arms.
(1) Location. The driving arms are attached
to the chemical solution feeder by a main shaft that
extends through the feeder housing.
(2) Purpose. The driving arms drive the two
lever arms.
c. Lever ARms.
(1) Location. There are two lever arms at-
tached to the top of the chemical solution feeder.
(2) Purpose. The lever arms are used to actu-
ate the diaphragm push rods and springs, and oper-
ate the diaphragm pumps of the chemical solution
feeder. When necessary, after two wingnuts and
washers have been loosened, the lever arms can be
used to prime the diaphragm pumps.
2-17.1. Chemical Solution Feeder Controls and
Figure 2-23. Thermostat, installed.
Indicators (Raider Model only).
(2) Purpose. The position of the two control
a. Control Knobs.
knobs determine the amount of ferric chloride and
calcium hypochlorite supplied to the water
(f) location. Two control knobs are mounted
treatment section. Rotating the knobs to the 100%
on the main housing. Each knob is labeled with a
setting provides maximum pump output; rotating
scale indicating the percentage of stroke of the
the knobs to a lower setting decreases output.
internal diaphragm pumps.
Change 3
2-52
