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TM 07661B-14/1
APPENDIX A
electrical power for very cold weather operation the unit is self-contained and space-consuming auxiliary equipment is
not required. The unit is not heat-generating, and can be used in a relatively confined space, providing sufficient working
area for maintenance and servicing is provided.
(4)
The fire extinguisher is virtually corrosion free, due to the materials used in its construction and the
corrosion treatment used in its finish. This fact, coupled with the use of a blanket type heater for the AFFF liquid tank,
makes it satisfactory for unrestricted installation in unprotected areas. The unit and its controls are mostly metal. This
makes it desirable, when operating in extremely hot climates, to provide a shade of some sort. This will require the use
of gloves by operating and maintenance personnel.
d.
Tank Heater. The AFFF tank is equipped with a heater for cold weather operation. The heating system is
compatible with a 120/240 volt, 1 phase, 60 hertz, AC power supply, provided by the using organization.
A 1-9. SERVICING.
a.
Removal of Protective Compounds. No protective compounds are used in shipping the fire extinguisher. It may
become soiled during shipment, however.
WARNING
Use normal precautions when cleaning with compressed air to prevent injury to personnel.
Compressed air for cleaning purposes will not exceed 30 psi. User should wear safety
goggles, and should not direct the stream of air toward himself or other persons.
b.
Cleaning. Clean exterior of the fire extinguisher with any approved cleaning solvent, using a soft brush or cloth.
Inaccessible areas may be cleaned with compressed air.
c.
Lubrication. No lubrication is required prior to using the fire extinguisher. Swivel assembly of both hose reels,
local and remote, are lubricated at the factory prior to shipment, as are the bearings of the remote hose reel cart wheels.
A 1-10. INITIAL SERVICING WITH CHEMICAL AGENTS.
Initial servicing of the fire extinguisher is considerably more complex than normal replenishment. Initial servicing will be
fully covered in the next three paragraphs.
NOTE
When refilling dry chemical tank be sure NO water is introduced into the tank. If the funnel
has been used to fill the AFFF tank with water, ensure the funnel is completely dry prior to
using it with the dry chemical.
A 1-18
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