Johnson Controls ANSUL 10, Operation, Inspection, Service And Maintenance, And Recharge Manual

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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)
PAGE 8 REV. 10 2018-OCT-15
SERVICE AND REPAIR
SERVICE AND REPAIR (Continued)
COMPONENT DISORDER CORRECTIVE ACTION
Cartridge Guard Rust spots, pits or corrosion deposits Replace guard or clean corroded areas and repaint.
Dents or abrasions Repair and refinish; or replace guard.
Paint peeling Remove loose paint with a wire brush and repaint or replace
guard.
Broken clip attachment Drill tw Refer to Parts List. o 3/16 in. holes in location of existing
composite weld pins. Pop rivet clip into guard using 3/16 in.
stainless steel pop rivets.
Cartridge Receiver Bent, binding, corroded or dull puncture pin Replace puncture pin. See page 27.
Obstructed pressure vent hole Clear vent hole with a stiff, unbreakable wire probe of lesser
diameter than vent hole.
Threads corroded, nicked, cross- Replace cartridge receiver destroying affected receiver to
threaded or worn prevent reuse. See page 23.
Hose Cut, cracked, abraded or deformed exterior Replace entire hose assembly.
Corroded or cracked coupling, swivel Replace entire hose assembly.
joint or ferrule
Corroded, cross-threaded or worn Replace entire hose assembly.
coupling threads
Internal blockage Clear by flexing or blowing dry air or nitrogen through the hose
at 50 psi (3.45 bar).
!
CAUTION
Do not leave open end of hose unattended unless adequately
restrained to prevent whipping, endangering life/safety.
Coupling O-ring, brittle, compression Replace, lubricating new o-ring lightly.
set, cracked, cut or missing
Nozzle Wrong nozzle Replace with proper model nozzle recommended by Johnson
Controls. Refer to Parts List.
Nozzle body corroded, cracked or dented Replace nozzle.
Operating handle broken or deformed Replace handle.
Operating handle binding or immovable See ‘‘Leaking Nozzle’’ below.
Leaking nozzle, plugged tip and/or Disassemble and clean deposits from internal passages and
discharge passage parts with a small, stiff bristle brush; examine internal parts
and replace if cut, checked, deformed, stiff, brittle or worn.
Reassemble nozzle and pressure test at 250 psi (17.24 bar).
Threads nicked, worn or cross-threaded Replace nozzle.
Gaskets brittle, compression set, cracked, Replace, lubricating gasket lightly.
cut or missing
Plunger tip evidencing cuts, abrasions, Replace.
degrading rubber, brittleness, or
separation from plunger
NOTICE
All old, molded rubber plunger type tips
(without screw) should be replaced during
maintenance with the captured style tip.
See page 25.