Graco HydroShield WABL00, Instructions - Parts Manual

Page: 105 / 140

Repair
Service Service Service the the the Electrical Electrical Electrical Controls Controls Controls
Use the procedures in this section to service
components of the electrical controls as
needed. The procedures refer to the figures in
Electrical Schematics, page 107 .
Prepare Prepare
Prepare the
the
the Electrical
Electrical
Electrical Controls
Controls
Controls for
for
for Service
Service
Service
1. Prepare the isolation system for service. Follow
of the steps in
Prepare the Isolation System for
Service, page 89 .
2. Remove power from the isolation system.
3. Use a flat blade screwdriver to open the isolation
cabinet door.
4. Loosen the cover screws (416) and remove the
cover (402).
5. Open the electrical control assembly.
Replace Replace
Replace a
a
a Solenoid
Solenoid
Solenoid Valve
Valve
Valve
1. Prepare the electrical controls for service. Follow
the steps in
Prepare the Electrical Controls for
Service, page 105 .
2. Remove the connector (433) from the color
change board (403).
3. Disconnect the solenoid wire.
4. Remove the solenoid valve (407) from the
manifold (406) by turning it counter clockwise.
5. Install a new solenoid. Lubricate the o-ring.
6. Reconnect the solenoid wire to connector
(433). Reinstall connector (433) on the color
change board (403). For location details, see
Electrical Schematics, page 107 .
7. Use Maintenance screens 3-6 to verify the
operation of the solenoid.
Replace Replace Replace a a a kV kV kV Board Board Board
1. Prepare the electrical controls for service. Follow
the steps in
Prepare the Electrical Controls for
Service, page 105 .
2. Disconnect the wires from the kV board assembly
(428).
3. Pull the tab with a screw driver to release the
board from the DIN rail (436).
4. Install a new kV board assembly.
5. Snap the board on the DIN rail (436).
6. Reconnect the cable (445) as shown in
Electrical Schematics, page 107 .
7. Connect the wires to the kV board as shown in
Electrical Schematics, page 107 .
Replace Replace Replace an an an Electro/pneumatic Electro/pneumatic Electro/pneumatic (V2P) (V2P) (V2P)
Regulator Regulator
Regulator
1. Prepare the electrical controls for service. Follow
the steps in
Prepare the Electrical Controls for
Service, page 105 .
2. Disconnect the splitter cable (446).
3. Disconnect the air lines.
4. Remove the screws (408) to remove the regulator
bracket (434) and V2P (415) from the panel.
5. Move the regulator bracket (434) and fittings to
the new V2P (415).
6. Reinstall the regulator bracket (434) and V2P
(415) onto the electronics panel (401).
Note
Do not use liquid thread sealant. Use
tape instead.
7. Reconnect the air lines as shown in
Pneumatic Connections, page 109 .
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