IM 25.055AC UA (C/6-01)
AUTOMATIC CHLORINATOR - 3000LB/24HR
44
f. Proceed to paragraph c for the anti-syphon portion of the injec-
tor.
• Cleaning Anti-Syphon Injector Lower Portion
a. Unscrew lower union nut (10), carefully remove bottom cap, and
take out diaphragm assembly. Clean off any deposits with warm
(110°-125°F) water. It is not necessary to disassemble the dia-
phragm unit to do this.
b. Remove O-rings (17) from guide pins (13). Clean O-ring groove
on guide pins. Do not scrape with a knife blade or any such instru-
ment. Only warm water (110°-125°F) is permissible. Wipe a thin
film of Halocarbon grease on the new O-rings before installing
them on the guide pins (13). Loosen screws (20) 3/4 of a turn
from their tight position, if disassembled.
c. Remove spring (22) and wipe off any deposits found.
d. Reinstall spring and diaphragm assembly into bottom cap. Reas-
semble bottom cap to body with union nut.
4.11.8 Cleaning 1" Fixed Throat Injector (Standard) (See Dwg. 25.200.002.030)
• Cleaning Injector Unit Diaphragm Backcheck
a. Turn off the gas supply. Allow the gas feeder to run until the float
drops and settles on the bottom stop.
b. Shut off injector operating water.
c. Take steps to prevent water flowing back toward the injector from
the point of application.
d. Unscrew stem (11) in the center of the top of the injector. Re-
move and discard O-ring (5).
e. Wipe the surface of the spherical tip of stem with a clean cloth or
paper towel to remove any loose material. Soak briefly in 10%
muriatic (hydrochloric) acid if there are any deposits that do not
wipe away with plain water. If the spherical surface is indented,
worn, eroded, or scratched, replace valve stem (11).
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY
OR EQUIPMENT DAMAGE WHEN USING HYDROCHLORIC
!
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