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Operation
32 3A2012J
7. Turn the main air supply ball valve to the open posi-
tion. See F
IG
. 28.
8. Slowly turn the main air supply pressure regulator
clockwise until the main air supply pressure gauge
reads the desired pressure. See F
IG
. 28.
9. Disengage trigger lock on the gun. See F
IG
. 29.
10. Pull trigger to begin dispensing. See F
IG
. 29.
NOTE: In the following step, to minimize catalyst over-
spray, use as little catalyst atomization air pressure as
possible to achieve desired spray pattern. See the spray
gun manual for instructions.
11. If the spray pattern has not already been set up to
perform as desired, see RS gun manual for detailed
instructions for how to optimize the spray pattern,
including adjusting the AAC air pressure at the sys-
tem or gun, and adjusting the catalyst atomization
air.
12. After all pressure adjustments are made, spray a
final test shot on a clean piece of paper. This shot
should be approximately 5 ft long. Check desired
gel times and uniformity of curing.
13. For internal mix proportioners only: When finished
spraying engage trigger lock then point the gun into
a waste container and use the solvent knob on the
gun to move solvent through the gun to flush the
gun.
14. For external mix proportioners only: When finished
spraying, squirt the tip of the gun with solvent to
remove any mixed material.
15. If necessary, use a brush to remove cured material
from front of the gun.
16. If finished spraying for an extended period of time:
Follow Pressure Relief Procedure and Shutdown
on page 24.
F
IG
. 28
F
IG
. 29
F
IG
. 30: AAC Air Adjustment
no air too little air
correct amount
of air