TO 1-1-700 - Robins Air Force Base

TO 1-1-700
7.3.1.2.3 Portable, 45 gallon, Foam Generating Cleaning
Unit. This cleaning unit is a simplified, portable, pressure
operated foam-dispensing system. It uses available air supply
for its power source without using pumps. Air is metered
directly into the pressurized solution chamber which forces
cleaning solution into the hose to create foam. These machines
shall be operated per these instructions and the directions in
the specific equipment operating manual:
slightly. If the foam is too dry, open the cleaning compound
metering valve slightly and/or close the air valve
slightly.
e. Apply the foam to the surface and allow it to dwell for a
minimum of one minute, but not long enough to dry on
the surface, and then scrub with a cleaning kit, brush, or
cloth and rinse. See Table 7-1 for additional instructions.
7.4 LUBRICATION.
Do not service the 45 gallon foam generating cleaning
unit without releasing the tank pressure.
• When the cleaning operation is completed, drain
the tank and flush with fresh water to prevent
forming an extremely concentrated solution by
pouring additional cleaner into the solution remaining
in the tank which could damage the
equipment being cleaned.
• Release the tank pressure prior to servicing. Close
the cleaning compound metering valve and the air
valve, and open the air dump valve to bleed off
retained air pressure.
a. Open the tank by removing the cover retaining bolts and
lifting off the cover. Fill the tank with an authorized,
pre-diluted cleaning solution, while leaving an adequate
air space at the top of the tank. Replace the cover and
bolt it firmly in place.
NOTE
Refer to Table 7-1 for the proper cleaner to use.
b. Make sure the cleaning compound metering valve and
the air valve are closed; attach an airline to the air inlet/
dump valve on the side of the unit; and fill the void in
the tank with air until the pressure is within the range of
30 to 70 PSI as indicated at the air regulator.
c. Open the air valve, and then open the cleaning compound
metering valve slowly while pointing the nozzle
at the surface to be cleaned. Adjust the cleaner compound
metering valve until the desired foam consistency
is reached.
• Not all lubricating materials are compatible with
each other and/or metals used in Air Force C-E-M
equipment. Some are known to promote galvanic
corrosion or cause paint or acrylic plastics to deteriorate.
Using the correct lubricating material is
critical. Do not use greases or oils with solid film
lubricants. Use only lubricants specified by appropriate
system specific manuals and/or cards.
• Do not lubricate Teflon bearings or bushings.
Clean Teflon bearings and bushings with A-A-
59601, Type II or III, MIL-PRF-32295, Type II, or
MIL-PRF-680, Type II or III degreasing solvent.
• Lubricants containing graphite, both alone or in
mixture with any other lubricants, shall not be
used, since graphite is cathodic to most metals and
will cause galvanic corrosion in the presence of
electrolytes.
Lubrication performs a dual purpose: to prevent wear between
moving parts; and also to fill air spaces, displace water, and
provide a barrier against corrosive elements. The lubrication
requirements contained in system specific maintenance manuals
and/or cards are usually adequate to prevent corrosion of
most lubricated surfaces under normal operating conditions. In
the event that the specified lubricant is not available, request
substitutions from the equipment SPM.
NOTE
Comply with re-lubrication time frame requirements
outlined in the system specific maintenance manual.
7.4.1 Conventional Lubricants. Table 7-2 contains the
title, specification, intended use, and temperature range of the
most frequently used conventional lubricating materials.
d. If the foam is too wet, close the cleaning compound
metering valve slightly and/or open the air valve
7-14 Change 3