Graco Fluid Automation 633, Operation

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Setup
38 332078C
e. Prime Metering Cylinder and Material Supply
Line by pressing the Inlet Valve A solenoid but-
ton located on the machine frame. Purge until it
appears that no air is remaining in the hose.
f. Connect and tighten the hose back on the Out-
let valve located on the dispense manifold.
g. Repeat steps b through f for the B side.
Purging through the Manifold and Mixer Assembly.
a. Verify the Screw Rotate Signal is in the low
state.
b. Disengage the rotation screw assembly with the
static mixer assembly from the press.
c. Manually refill the metering unit by holding the
“Manual Refill” button on the “Mode Select
Screen”.
d. Press the “Manual Feed” button, and dispense
into a waste container. Repeat the refill and
feed process until material cures properly.
e. Press the stop button.
f. Engage the rotation screw assembly with the
static mixer assembly from the press.
3.
Adjust the Colorant Injector Shot
Size
To properly deliver the correct percentage of colorant to
the “A” and “B” material streams, the color injector must
be set correctly. Use these procedures to correctly set
the “Color Injector Shot Size” on the “Preset Screen”.
a. Perform Pressure Relief Procedure , page 42.
b. Disconnect the color injector from the manifold
assembly.
c. Set the desired stroke length on the injector
using the following information:
• Color Injector Maximum Shot Size - 0.226 cc’s
• Volume per turn of the adj. Screw - 0.01884 cc’s
• Number of turns maximum - 12
d. Set the shot as large as possible to prevent air
from interfering with the injectors performance.
NOTE: No material will flow until about 3/4 to 1 turn of
the screw because of the check mechanism inside the
injector.
e. Prime the injector.
NOTICE
To avoid machine damage, do not cycle the screw
without any lubrication. Refer to press manufacturer
procedures for more detail.
A
B
Screw Adjustment