ITEM TO BE
A cylinder must be recharged or replaced if its
weight loss exceeds 10 percent of difference
between full and empty weight marked on
cylinder. Hydrostatic test cylinders if either
10 years have passed since last static test and
cylinders have not been discharged or cylinders
have been used within 5 years since last test.
a. Remove and weight each cylinder. Refer to WP 0400 00 for
removing, weighing, and installing instructions.
b. Inspect the fire extinguisher data plate to ensure that hydrostatic
tests have been performed on each cylinder in the past five years.
c. Clean cylinder discharge nozzles of foreign matter.
d. Before replacing fixed fire extinguisher cylinders, operate remote
Cable binds, or will not
control discharge handles to make sure that cables do not bind and
that they control discharge function properly.
e. Seal remote control handles before checking system.
f. Ensure fire extinguisher interlock switch assembly is operating
properly by pulling out safety pin and letting cover plate swing
down. A clicking sound should be heard.