TM 9-2350-277-20-2
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS — Continued
0155 00
ITEM
NO.
INTERVAL
MAN-
HOUR
ITEM TO BE
CHECKED OR
SERVICED
CREWMEMBER
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE
IF:
70
Semi-
Annual
Fixed Fire
Extinguisher
CAUTION
Fire extinguisher control valve sealed with
steel wire will not work. Make sure seal
wire is made out of .020 light copper.
a. Remove and weigh fixed fire extinguisher
cylinder (WP 0898 00).
Extinguisher is
missing or
seal/lockwire
missing or
broken, bottles
are overdue for
hydrostatic
test. Lock wire
is not .020
light copper.
b. Recharge or exchange fire extinguisher if weight
loss is more than 10 percent of charged weight
stamped on bottle.
c. Inspect fire extinguisher cylinder data plate to
ensure that a hydrostatic test has been performed
within the past 12 years. Faulty extinguishers,
or those beyond the test time limit (12 years),
shall be declared unserviceable and replaced.
CAUTION
Fire extinguisher control valve sealed with
steel wire WILL NOT work. Use .020 thin
copper wire.
d. Before reconnecting cylinder, operate discharge
handles to be sure cables and controls work
properly.
e. Install cylinder and replace copper seal wires
(WP 0898 00).
f. Replace discharge tubes that are crimped,
plugged, or cracked (WP 0899 00).
0155 00-121
