User's Manual

Service

3A1164B 37

Replacing Solenoids

The Fluid Station Control Box has a minimum of 4 sole-

noids. If you have options installed, you have additional

(optional) solenoids for each. See Table 6 and Sche-

matic Diagrams, page 26.

To replace a single solenoid:

1. Follow Before Servicing, page 30, and shut off

power at main circuit breaker.

2. Disconnect 2 solenoid wires from control board

(302). See F

IG. 17 and System Electrical Sche-

matic, page 29.

3. Unscrew 2 screws and remove solenoid (318). F

IG.

19.

4. Install new solenoid (318).

5. Connect 2 wires (N) to control board (302). Solenoid

wires are polarized (red +, black –). Refer to Sys-

tem Electrical Schematic, page 29.

Replacing Control Board Fuse

1. Follow Before Servicing, page 30.

2. Locate fuse F1 on the control board. See F

IG. 18.

Remove the screw and metal strap.

3. Pull the fuse away from the board.

4. Install the new fuse (343).

Replacing the fuse with a non-Graco fuse voids the IS

system safety approval.

Fuse Part No. Description

F1 123690 Fuse; 125 mA, intrinsically safe

Table 6: Control Box Solenoids

Solenoid Actuates

Standard

1 Dose Valve A

2 Dose Valve B

3 Air Purge Valve

4 Solvent Purge Valve

Optional

5 Third Flush Valve

6 Dump Valve A

7 Dump Valve B

IG. 19: Replacing Solenoids

318

TI15917a