Troubleshooting
312787G 11
Replace a Solenoid
1. Remove air supply pressure from the system.
Remove the color change module cover (30).
2. Disconnect the 2 solenoid wires from the color
change board (15). See F
IG. 7, the Color Change
Module Electrical Schematic on page 15, and the
System Electrical Schematic on page 17.
3. Unscrew 2 screws (P) and remove the solenoid (4).
See F
IG. 6.
4. Install the new solenoid (4).
5. Connect the 2 solenoid wires to the color change
board (15). Solenoid wires are polarized (red
+12Vdc, black –). Refer to the Color Change Mod-
ule Electrical Schematic on page 15 and the Sys-
tem Electrical Schematic on page 17.
6. Reinstall the cover (30).
Replace the Color Change
Board Fuse
NOTE: Replacing the fuse with a non-Graco fuse voids
the IS system safety approval.
1. Remove electrical power from the system. Remove
the color change module cover (30).
2. Locate fuse (F1) on the color change board. See
F
IG. 7. Remove the screw and metal strap.
3. Pull the fuse away from the board.
4. Install new fuse (F1). Reinstall the strap over the
fuse.
5. Reinstall the cover (30). Restore electrical power to
the system.
Fuse Part No. Description
F1 123690 Fuse; 125 mA, intrinsically safe
FIG. 6: Color Change Solenoids
TI12826a
Manual Solenoid Overrides
Solenoid
Identification
Label
Solenoid
Identification
Label
Color
Color Catalyst
P
