Graco ProMix Auto Series, Service Parts

Page: 23 / 48

Service
311189L 23
Replacing Control Board
1.
Follow Preparation procedure, page 22.
2.
Loosen 6 screws (5) on bottom of panel to remove
control board cover (6). F
IG
. 20 (RoboMix Fluid
Panel only.)
3.
Disconnect fiber optic wires and all cables (J1, J3,
J4, J5, J6, J9, J10) from control board (706). F
IG
.
21.
4.
Remove 4 screws (707). Remove control board
(706). F
IG
. 21. (RoboMix Fluid Panel not shown;
use same procedure.)
5.
Install new control board (706) with 4 screws (707).
6.
Connect cables to control board (706). F
IG
. 23.
Insert fiber optic cable connectors (J4, J6) into
board connectors (E), matching blue with blue,
black with black, and hand-tighten connectors (E).
F
IG
. 23 and F
IG
. 23.
7.
Reassemble control board cover with 6 screws (5).
F
IG
. 20. (RoboMix Fluid Panel only.)
8.
Reassemble Fluid Panel (page 24).
9.
Turn EasyKey™ power on to test operation.
Replacing Solenoids
The Fluid Panel has a minimum of 4 solenoids. If you
have a color change valve option installed, you have
additional (optional) solenoids for each color dump valve
and dump valve and catalyst dump valve. Refer to
Pneumatic Diagram , page 28.
To replace a single solenoid.
CAUTION
To avoid damaging circuit board when servicing, wear
grounding strap on wrist and ground appropriately.
F
IG
. 20
F
IG
. 21
5
6
707
706
TI7223a
F
IG
. 22: RoboMix Fluid Panel Circuit Board
F
IG
. 23: Wall Mount Fluid Panel Circuit Board
E
E