Graco PR70e, Instructions Manual

Page: 29 / 70

Setup
334135B 29
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 the Machine
1. Place a waste container under the dispense valve to
catch dispensed material.
2. Remove the static mixer from the dispense valve.
3. Install the ratio check nozzle onto the dispense
valve.
4. If necessary, place a stand under the ratio check
nozzle to support the waste container close to the
nozzle.
5. Navigate to the Phasing Shot Calibration Screen .
Adjust Dispense Quantity
6. Press the Phasing shot button ( ) to enter
phasing mode.
7. Press the Dispense Request button ( ) or the
footswitch to dispense a very small amount of mate-
rial.
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
arrow keys to switch the percentage from posi-
tive to negative.
• If no material was dispensed, increase the dis-
played percentage. If necessary, use the arrow
keys to switch the percentage from negative to
positive.
F
IG
. 6: Phasing Calibration Screen.
F
IG
. 7: Ratio Check Nozzle
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