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TM 9-2330-272-14
5-12. FIXED FIRE EXTINGUISHER MAINTENANCE (Con’t).
a.
CONTROL VALVE AND PULL BOX REMOVAL
1.
Disconnect control valve (4) from cylinder (7).
2.
Remove tube (6) and pull cable (5) from control valve (4).
3.
Remove pull handle (23) and pull cable (5) from tube (6).
4.
Remove tube (6), straight adapter (29), nut (28), and washer (27) from pull box (25).
NOTE
M131A5 is not equipped with cover.
5.
Remove retaining pin (24), pull box (25), and cover (26) from frame.
b.
CYLINDER REMOVAL
1.
Remove discharge line (1) from cylinder adapter (2).
2.
Remove two nuts (10), Iockwashers (9), mounting bracket (8), and cylinder (7) from cabinet. Discard
Iockwashers.
c.
LINES AND FlTTINGS REMOVAL
1.
Remove three discharge lines (1, 19, and 20) from two tees (21). Remove tees from two nozzles (22).
NOTE
Step 2 applies to M131A4C and M131A5C only.
2.
Remove two discharge lines (17 and 19) from straight adapter (18).
3.
Remove discharge line (17), straight adapter (16), and elbow (15) from nozzle (14).
d.
NOZZLES REMOVAL
Remove six screws (11), Iockwashers (1 2), two nozzles (22), and nozzle (14) from three brackets (13). Discard
Iockwashers.
e.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open flame or excessive heat.
The solvent’s flash point is 100°F-138°F (38°C-59°C). If you become dizzy while
using cleaning solvent, immediately get fresh air and medical help. If solvent contacts
eyes, immediately wash your eyes and get medical aid.
1.
Clean parts with dry cleaning solvent.
5-30
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