User guide

Dow Building Solutions
3. Dispense chemicals in an appropriate container and
examine the chemical streams. If the streams are
equal, the problem existed in the nozzle. Continue
with steps 47 below. If the problem is not corrected,
the blockage exists in the system. Continue with
CAUTION – below step 7.
4. Clean any chemical from the INSTAFLO™ Gun face
using a rag.
5. Insert an unused nozzle.
6. Dispense chemical in an appropriate container.
7. Check the quality of the foam. If the foam is good,
the system is ready to operate. If the problem is not
corrected, the blockage exists in the system.
(Continued from step 3)
CAUTION: When disconnecting chemical lines, always
cover the connections with a rag to minimize chemical
spray or spillage.
8. Turn off the “A” and “B” lines with the in-line on-off
valves. The valve handles should be perpendicular to
the chemical lines.
9. Depressurize the Gun/Hose Assembly by pulling
the trigger, dispensing chemicals in an appropriate
container.
10. Disconnect the INSTAFLO Gun from the in-line on-off
valve using two adjustable wrenches.
11. While holding the chemical line over an appropriate
container, carefully open the valve of the “A” hose
and dispense chemical into the container. Check the
flow. Repeat for the ‘B’ hose.
12. If the flow was adequate from both hoses, the problem
was with the INSTAFLO™ Gun/Hose Assembly.
Discard the old INSTAFLO Gun/Hose Assembly and
replace with a new one according to steps 1320.
If a blockage persists, continue with step 21.
13. Connect the new INSTAFLO Gun/Hose Assembly.
14. Tighten all connections with two adjustable wrenches.
15. Verify that all chemical line valves are on. The valve
handles should be perpendicular to the chemical lines.
16. Dispense chemicals in an appropriate container to
verify proper chemical flow.
17. Clean any chemical from the face of the INSTAFLO
Gun with a rag.
18. 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.
19. Dispense chemicals in an appropriate container.
20. Check the quality of the foam. If the foam quality is
good, the system is ready to operate. If problems
persist, go back to step 2.
21. Turn off the on-off valve located near the tank filter
of the blocked line.
22. Turn on the in-line on-off valve of the blocked line
to depressurize the hose, allowing the chemical to
dispense in an appropriate container.
23. Close the in-line on-off valve when the hose has
depressurized.
24. Disconnect the obstructed chemical hose from the
on-off valve located next to the tank filter.
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