IM 25.055AC UA (C/6-01)
AUTOMATIC CHLORINATOR - 3000LB/24HR
43
• Cleaning Injector Unit Diaphragm Backcheck.
a. Shut off injector operating water.
b. Take steps to prevent water flowing back toward the injector from
the point of application.
c. Unscrew gas line tubing nut and remove tubing.
d. Unscrew injector body union nut (10).
e. Unscrew valve stem (8) in the center of the top of the upper body
(32). Wipe the surface of the spherical tip of valve stem with a
clean cloth or paper towel to remove any loose material. Soak
briefly in 10% muriatic (hydrochloric) acid if there are any depos-
its that do not wipe away with plain water. If the spherical surface
is indented, worn, eroded, or scratched, replace valve stem.
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY
OR EQUIPMENT DAMAGE WHEN USING HYDROCHLORIC
ACID, OBSERVE ALL SAFETY PRECAUTIONS RECOM-
MENDED BY THE ACID MANUFACTURER/SUPPLIER.
f. Using a blunt tool, remove the O-ring (31) from the valve seat (9)
(diaphragm clamping screw). Discard the O-ring.
g. Reassemble the valve stem to the upper body and replace the valve
seat O-ring and diaphragm clamping O-ring (outer) prior to as-
sembling the injector body union nut.
• Cleaning Poppet Check
a. Unscrew the inlet adapter and discard O-ring (2).
b. Remove the poppet and remove the O-ring (3) from the poppet.
Discard the O-ring.
c. Replace the poppet O-ring.
d. Replace the inlet O-ring. Wipe a thin film of Halocarbon grease
on the O-ring before installing it.
e. Reassemble the poppet and inlet adapter.
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