Graco HydroShield, Instructions Manual

Page: 111 / 148

Repair
Convert Convert Convert a a a Standard Standard Standard System System System to to to be be be Equipped Equipped Equipped
for for for a a a Gun Gun Gun Flush Flush Flush Box Box Box
Use Gun Flush Box Installation Kit 26B420 to install
a gun flush box on a standard system that was not
equipped for a gun flush box. Kit 26B420 is listed in
Accessories, page 132 .
1. Prepare the electrical controls for service. Follow
the steps in
Prepare the Electrical Controls for
Service, page 109 .
2. On electrical control (14), install pressure switch
(19B745) to the right of the existing pressure
switch (420).
3. Connect wires D1 and D2 as shown in
Wiring Connections, page 116 .
4. Remove the cap plug by the gun flush box icon
label on the controls enclosure and install a
bulkhead.
5. Use air tubing (598095) to connect
the gun flush box pressure switch
(19B745) to the bulkhead (121818). See
Pneumatic Connections, page 114 .
6. Install a solenoid valve (16P316) in the
number 8 position on the solenoid manifold.
Remove the plug in this location. To
install a new solenoid, follow the steps in
Replace a Solenoid Valve, page 109 .
7. Install an air fitting (114263) at the solenoid
manifold.
8. Remove two cap plugs on the right side of the
unit next to the gun flush box icon labels. Install
two bulkheads (121818) in these locations.
9. Connect the air tubing from the solenoid 8
position to the correct bulkhead. Connect the
air tubing from the bulkhead on the controls
enclosure to the correct bulkhead. See
Pneumatic Connections, page 114 .
Replace Replace Replace the the the Color Color Color Change Change Change Board Board Board Fuse Fuse Fuse
Fuse Fuse Fuse Part Part Part No. No. No. Description Description Description
F1 17U084 Fuse; 500 mA
1. Prepare the electrical controls for service. Follow
the steps in
Prepare the Electrical Controls for
Service, page 109 .
2. Remove electrical power from the system.
3. Remove the electronic controls cover (402).
4. Locate fuse F1 on the color change board. Pull
the fuse away from the board.
5. Install the new fuse.
6. Reinstall the cover. Restore electrical power to
the system.
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