XM Wheeled Dry Chemical Fire Extinguisher
Operation and Maintenance Manual
(Part No. S-50651)
2023-AUG-30 REV. 02 PAGE 21
SERVICE AND REPAIR
SERVICE AND REPAIR (Continued)
Table 17: Hose (expellant gas and agent) service and repair instructions
Disorder Corrective Action
Exterior cut, cracked,
abraded, or deformed
Replace hose assembly.
Swivel joint or ferrule
corroded or cracked
Replace hose assembly.
Coupling threads corroded,
cross-threaded, or worn
Replace hose assembly.
Coupling gaskets brittle,
compression set, cut, or
missing
Replace, lubricating new gaskets with a good grade of silicone grease before insertion.
Table 18: Agent hose safety release service and repair instructions
Disorder Corrective Action
Internal blockage Refer to Hose Pick-Up Tube Blow-Down Procedure (Manual No. 53141) to clear tube. If tube will
not blow clear, replace hose and visual hose inspection disc.
Table 19: Nozzle service and repair instructions
Disorder Corrective Action
Wrong nozzle Replace with type referenced in parts list.
Valve body or barrel abraded,
corroded, cracked, or dented
Replace valve body or barrel if in any way damaged or deformed.
Operating handle broken or
de-formed
Replace operating handle.
Operating handle loose Tighten securement screw.
Operating handle binding or
immovable
Replace or repair valve.
Consult Johnson Controls Technical Services, Marinette, WI 54143-2542.
Valve leaking Replace or repair valve.
Consult Johnson Controls Technical Services Marinette, WI 54143-2542.
Plugged tip or discharge
passage
Disassemble and clean deposits from internal passages and parts with a stiff bristle brush; then
reassemble.
Threads nicked, worn, or
cross-threaded
Replace thread-bearing component (barrel, valve body, or adaptor).
Gaskets or O-rings brittle,
compression set, cracked,
cut, or missing
Replace, lubricating gaskets or O-rings with a good grade of silicone grease before insertion.
To Next Page
Loading...