TM 5-4310-276-14
c. Installation.
a. Removal.
to the handtruck (8) with the bolts (11), lock-
(1) Release air from the air receiver tank by
washers (10) and locknuts (9).
(2) Remove the safety and relief valve (4)
(3) Install the unloader valve (3).
from the air receiver tank.
(4) Install the air pressure gage (5), gage tube
(3) Remove the air pressure gage (5), gage
(6) and fittings (7).
tube (6) and fittings (7).
(5) Install the safety and relief valve (4).
(4) Remove the unloader valve (3).
(6) Remove the air receiver tank (1) from the
4-40. Air Discharge Assembly.
handtruck (8) by removing locknuts (9), lock-
a. Removal.
washers (10) and bolts (11).
(1) Release all air from air receiver tank by
b. Cleaning and Inspection.
(2) Remove inflator gage (12), air hose (13)
and adapters (14).
Drycleaning solvent, P-D-680, used to
b. Cleaning and Inspection.
clean parts is potentially dangerous to
personnel and property. Avoid re-
peated and prolonged skin contact.
Drycleaning solvent, P-D-680, used to
Do not use near open flame or exces-
clean parts is potentially dangerous to
sive heat. Flash point of solvent is
personnel and property. Avoid re-
100F(38C).
peated and prolonged skin contact.
Do not use near open flame or exces-
(1) Clean all metal parts with cleaning sol-
sive heat. Flash point of solvent is
vent, item 5, App. D, and dry thoroughly. Clean the
100F(38C).
glass on the gage with solvent and dry with a lint-
free cloth.
(1) Clean hose fittings with cleaning solvent,
(2) Clean the interior of the air tank with live
item 5, App. D, and dry thoroughly.
steam, if available, or with an approved cleaning
(2) Examine fittings for defective threads.
solvent. Dry thoroughly.
(3) Examine hose for cracks or leaks.
(3) Inspect metal parts for cracks, rust or
(4) Replace defective hose assembly.
damaged threads. Inspect the glass for cracks.
c. Installation.
(4) Inspect the interior and exterior of the
(1) Install adapters (14, fig. 4-25) air hose (13)
tank for cracks, broken welds, dents or corrosion.
and inflator gage (12).
Check threaded surfaces for damaged threads.
(2) Close drain valve (2).
(5) Replace defective parts.
Section XVI. MAINTENANCE OF FIRE FIGHTING EQUIPMENT
4 - 4 3 . Replacement of Cylinder.
To replace cylinder, perform the following:
The monogromotrifluoromethane type fire extin-
a. Press lever to release pressure from used
guisher is generally suitable for all types of fire, ex-
cylinder.
cept fires involved with LOX (liquid oxygen) gener-
b. Loosen swivel valve coupling nut and re-
sting equipment. The fire extinguisher is furnished
move valve assembly from used cylinder.
with a disposable type cylinder.
c. Remove instruction band from used cylin-
der.
4-42. Maintenance
d. Place new cylinder through instruction
Weight fire extinguisher every 3 months and re-
band.
place cylinder if gross weight has decreased 4
e. Replace safety pin in valve and seal pin
ounces or more. Lubricate cylinder neck threads
with sealing wire.
with one drop of OE HDO 30 oil before reassembly.