Graco 312759R Home Theater Screen User Manual


 
Setup
40 312759R
Phasing Adjustment
When the machine executes a shot, materials from
Tank A and Tank B enter the static mixer where they are
mixed and then dispensed. In order for the materials to
mix at the desired ratio, both materials must enter the
static mixer at the same time. The timing of the materials
entering the static mixer is dependent on the adjustment
of the phase adjustment screw for each piston.
Prepare Machine
1. Place a waste container under the dispense valve to
catch dispensed material.
2. Remove static mixer from dispense valve.
3. Install ratio check nozzle onto dispense valve.
4. If necessary, place a stand under ratio check nozzle
to support waste container close to nozzle.
5. Navigate to the Calibration screen. See Screen
Navigation Diagram, page 16.
Adjust Dispense Quantity
6. Press the Enter/Exit Phasing button ( ) to enter
phasing mode.
7. Press the Start/Stop Shot button ( ) or the foot-
switch to dispense a very small amount of material.
8. Adjust the displayed percentage if more than a cou-
ple drops of either material was dispensed or if no
material was dispensed from both sides.
If too much material was dispensed, decrease
the phasing percentage. If necessary, use the
+/- button ( ) to switch the percentage from
positive to negative.
If no material was dispensed, increase the dis-
played percentage. If necessary, use the
+/- button ( ) to switch the percentage from
negative to positive.
F
IG. 25: Phasing
F
IG. 26: Ratio Check Nozzle
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