Johnson Controls ANSUL 10, Руководство по эксплуатации, осмотру, обслуживанию и перезарядке

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ANSUL Cartridge Dry Chemical Fire Extinguishers
Models 10, 20, 30, Operation, Inspection, Service and
Maintenance, and Recharge Manual (Form No. F-7674)
2018-OCT-15 REV. 10 PAGE 13
MAINTENANCE
MAINTENANCE (Continued)
23. To check the hose for internal blockage, place the extin-
guisher on its side, with the outlet elbow in the up posi-
tion, and remove the hose. Note: If the hose contains a
hose seal, remove retaining ring and seal before running
pressure through hose as described in Step 24. With a
very small, flat bladed screwdriver, (approximately the
size used for eye glass screws), pry the retaining ring out
of the groove in the hose coupling. There is a small
cutout area in one end of the retaining ring for this
purpose. The ring can be prevented from flying out of the
groove by placing your thumb over a portion of the inlet
end of the hose during removal. Remove the retaining
ring and the metal bordered hose seal. Both can be
reused if they have not been damaged.
!
CAUTION
Before proceeding with removal of seal and retaining
ring, make certain eyes are protected with proper safety
glasses. Retaining ring can pop out during removal and fly
several feet causing eye injury.
24. Squeeze the operating nozzle handle and blow dry air or
nitrogen back through the nozzle.
!
CAUTION
Do not leave open end of hose unattended unless
adequately restrained to prevent whipping, endangering
life/safety. Use a regulated pressure source set to less
than 50 psi (3.45 bar). If the hose is obstructed, manipu-
late (flex) hose manually until free of dry chemical.
25. Examine the o-ring on the hose coupling. Replace if
brittle, cracked, cut or missing.
26. Ensure the extinguisher elbow is free of dry chemical
and then reinstall the hose to the elbow. Wrench tighten.
Note: If extinguisher contains a hose seal, install seal at
this time by following the procedures listed below.
a. Place a new hose seal in end of hose.
b. Place a new retaining ring (or reuse old one) on the
hose coupling and press it into the retaining ring
groove. The easiest way to do this is start the side
of the retaining ring opposite the gap in the ring into
groove and work the ring into the hose coupling
groove with both thumbnails.
c. Recheck the new hose seal to make certain it has not
been ruptured during installation.
d. Reinstall hose on extinguisher.
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