Graco Gun Flush Box 570046 Instructions-Parts List Manual page 20

Gun Flush Box Controller 570262 Operation (continued)
NOTE: The following instructions are not for use with the PrecisionMix II system. See your PrecisionMix II system
manual 308916 for operation instructions.
Purging the System
1. Follow the General Operation instructions on
page 19.
2. Turn the Operator Switch to PURGE. The red
alarm light will flash on and off until the purge is
complete.
3. When the alarm light stops flashing, turn the Oper-
ator Switch to STANDBY.
STANDBY
MIX
Typical Remote Operator Station
Fig. 23
Loading the Material
1. Follow the General Operation instructions on
page 19.
2. Turn the Operator Switch to MIX.
3. The red alarm light will flash on and off until a
preset amount of mixed material is loaded through
the gun.
4. When the alarm light stops flashing, turn the Oper-
ator Switch to STANDBY.
5. When ready to spray, remove the gun from the
Gun Flush Box and close its door.
20 684019
Operation
Alarm Light
Operator
PURGE
Switch
6. Turn the Operator Switch to MIX to start spraying.
NOTE: The Gun Flush Box door must be closed for the
atomizing air valve to open.
Color Change
Steps 2 to 5 must be completed within the set purge
sequence time or the old color may be reloaded or the
PrecisionMix may have an I/O error. The operator can
turn the color change autofill option OFF on the Gun
Flush Box controller. With this option off, the operator
can fill the guns by turning the Operator Switch to MIX
after the color change is complete.
1. Follow the General Operation instructions on
page 19.
2. Turn the Operator Switch to PURGE. The red
alarm light will flash on and off until the purge is
complete.
3. While the unit is purging, turn the solvent switch
ON and then press the dump valve on the color
change control box.
4. After the old resin dumps through the valve, select
the new color, then turn the solvent switch to OFF.
5. Press the dump valve again to load the new color
from the color stack to the PrecisionMix manifold.
05122
6. The Gun Flush Box controller will purge the mixed
material and load the new color to a preset vol-
ume.
7. When the alarm light stops flashing, turn the Oper-
ator Switch to STANDBY.
8. When ready to spray, remove the gun from the
Gun Flush Box and close its door.
NOTE: The resin dump valve must be activated to
automatically load the new color.
9. Turn the Operator Switch to MIX to start spraying.
NOTE: The Gun Flush Box door must be closed for the
atomizing air valve to open.