Graco ULTRA AIRLESS 230-963 - Manual (Page 21)

BRIDGE RECTIFIER REPLACEMENT (See Fig 161
WARNING
Before doing this procedure, follow the Pressure
the risk of a fluid injection injury, splashing in the
Relief Procedure Warning on page 17 to reduce
eyes or on the skin, injury from moving parts or
electric shock.
1
1. Remove the pressure control cover and screws.
2. Disconnect all wires from the bridge at the ap-
propriate terminals.
.
CAUTION
The lockwashers must be in front of the
bridge to avoid overheating which will result in
bridge failure. Refer to the Detail in Fig 16.
6. Make sure the bridge is flush with the side of the box
7. Connect all wires. Carefully route the wires.
CAUTION
and tighten the screws securely.
3. Outside the pressure control box on the right side are
Be sure the flat blade of the insulated male
two screws Loosen, but don't remove the
nector is centered in the wrap-around blade of the
screw near the back mounting plate Then
female connector when the connections are
loosen and remove the front screw. Slide the bridge
made. Improper connections may cause the
out.
sprayer to malfunction.
4. Slide the new bridge into the box being sure
the lockwasher on the rear screw is
all wires carefully to avoid interference with
FRONT of the bridge. Refer to the Detail in Fig 16.
the movement of the bourdon tube, circuit board,
or control box cover which could cause a
5. Install the front screw, lockwasher and nut
8. Reinstall the pressure control cover and screws.
INSTALLATION DETAIL
Fig 16
307-671