Bridge.rectifier Replacement - Graco E Series Instructions-Parts List Manual

Before doing this procedure, follow the Pressure
Relief Procedure Warning on page 21 to reduce
the risk of a fluid injection injury, splashing in the
eyes or on the skin, injury from moving parts, or
electric shock.
Fig
Refer to
24-f .
Disconnect all wires from the bridge (308) at the ap-
2.
propriate terminals.
3. Outside the pressure control box on the right side are
two screws (331). Loosen, but don't remove the
screw near the back mounting plate
loosen and remove the front screw. Slide the bridge
out.
Slide the new bridge (308) into the box being sure the
4.
lockwasher (333) on the rear screw (331)
FRONT of the bridge.
Fig
24-1
24
BRIDGE RECTIFIER REPLACEMENT
Then
is
IN
5. Install.the front screw (331), lockwasher (333) and
nut (332).
CAUTION
The lockwashers (333) must be in front of the bridge
to avoid overheating which will result in bridge
failure. Refer to the Detail in Fig 24-1.
6. Make sure the bridge is flush with the side of the box
and tighten the screws securely.
7. Connect all wires. Carefully route the wires.
CAUTION
Be sure the flat blade of the insulated male
connector is centered in the wraparound blade of
the female connector when the connections are
made. Improper connections may cause the sprayer
to malfunction. Route all wires carefully to avoid
interference with the movement of the bourdon tube,
circuit board, or control box cover which could cause
a malfunction.
8. Reinstall the pressure control cover and screws.
1