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Idiomas disponibles
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15 . Remove the empty "B" tank and position the new "B" tank
in its place .
16 . Write "EMPTY" on the empty "B" tank .
9.3 Tank Return
1 . Complete the bill of lading on the empty tanks as described
on page 5 of this manual .
9.4 System Pressurization
1 . Open the nitrogen bottle valve by turning the knob on top
of the cylinder counter-clockwise . If a hissing sound occurs,
further tighten the nitrogen regulator valve stem with an
adjustable wrench .
2 . Verify that nitrogen cylinder pressure using the center
gauge of the nitrogen regulator assembly . The system
WILL NOT operate efficiently if the pressure falls below
500 psi . If below 500 psi, replace the nitrogen cylinder .
3 . Re-calibrate the system referring to section 4 .2
4 . Turn the left regulator stem clockwise to the proper
pressure setting of the "A" tank . If a hissing sound occurs,
further tighten the yellow-coded nitrogen line connection
to the nitrogen regulator assembly and/or the nitrogen
intake connection on the "A" tank using an adjustable
wrench . If the left gauge fails to indicate a pressure
setting, contact your DuPont Sales Representative .
5 . Turn the right regulator stem clockwise to the proper
pressure setting of the "B" tank . If a hissing sound occurs,
further tighten the yellow-coded nitrogen line connection
to the nitrogen regulator assembly and/or the nitrogen intake
valve connection on the "B" tank using an adjustable wrench .
If the right gauge fails to indicate a pressure setting, contact
your DuPont Sales Representative .
6 . Slowly open the nitrogen intake valve of each tank . The valve
handles should be parallel with the nitrogen lines .
7 . Slowly turn on the chemical valve of each tank and the on-off
valve of each chemical line . The valve handles should be
parallel to the chemical lines . Verify that the filter connection
of each tank is tight and that no chemical leaks are present .
9.5 System Purging and Testing
1 . Dispense chemicals in an appropriate container . This is to
verify proper chemical flow . Check the flow with a calibration
nozzle attached for 120' hoses .
2 . Clean any chemical from the Insta-Flo
3 . Insert an unused nozzle with the key slot down . Push in firmly
until the nozzle ejector is seated over the back rim of
the nozzle .
18
Section 10
Troubleshooting
The Froth-Pak
many problems can be corrected through simple trouble-
shooting techniques . When troubleshooting, confirm that the
system is pressurized correctly, and that all nitrogen and chemi-
cal valves are in the open position . One closed valve can cause
a system shut-down .
10.1 Temperature
Chemical temperature can affect foam quality . If the chemical
temperature is below 65°F (18 degrees C), poor quality foam
may result . The ideal temperature range is 75-90 degrees F
(24-32 degrees C) , minimum 65 degrees F (18 degrees C) .
10.2 Foam Color and Quality
Changes in foam quality indicate an off-ratio foam . If the foam
is crusty after curing, the foam is "A" rich and a blockage of
"B" chemical exists .
If the foam is mushy, and remains soft after two minutes,
the foam is "B" rich and a blockage of "A" chemical exists .
To identify and correct the problem, initiate the following
procedure:
1 . DO NOT breathe vapor or spray . Proper PPE and ventilation
Gun face using a rag .
™
2 . Remove the used nozzle by pushing down the nozzle ejector .
4 . Dispense foam to verify proper chemical mixing . If imprope
mixing or poor foam quality, refer to the Troubleshooting
section, Section 10 of this manual .
Refill System is virtually maintenance-free and
™
are required . See product SDS and Section 2 of this manual
for further information . Follow all precautions for product .
Use only in well ventilated areas . With insufficient ventilation,
wear suitable respiratory protection .
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