Graco 231-032 A Series Instructions And Parts List page 24

BRIDGE RECTIFIER REPLACEMENT (Refer to Fig 17)
Before doing this procedure, follow the Pressure and tighten the screws
securely.
the risk of s fluid injection injury, injury from mov-
Relief Procedure Warning on page 13 to reduce
ARNING 6. Make sure the bridge is flush with the side of the box
7.
Connect all wires. Carefully route the wires.
1. Remove the oressure control cover and screws.
I c
Be
sure
the flat blade of the insulated male con-
nector is centered. in the wraD-around blade of the
~~
2. Disconnect ell wires from the bridge (308) at the ap-
~ ~~~~ ~ ~~~~ ~~~~~ I
female connector when the connections ere
soraver to malfunction.
made. Improper connections may cause the
propriete terminals.
I
3. Outside the pressure control box on the right side are
two screws
(331). Loosen, but don't remove the
screw near the beck of the control box. Then loosen
Route all wires carefully to avoid interference with
and remove the front screw. Slide tha bridge out.
the movement of the bourdon tube, circuit board,
or control box cover which could causes malfunc-
4. Slide the new bridge (308) into the box being sure
the lockwasher
(333)
on the rear screw (331) is IN
FRONT of the bridge. Refer to the Detail in Fig 17. 8. Reinstall the pressure control cover and screws.
~~
~,~~
~~ ~ ~~~~~~~~~ ~~
5. Install the front screw, lockwesher and nut (332).
NOTE: The most common cause of bridge failure is
CAUTION a faulty motor. Check the motor before
The lockwashers
(333)
must be in front of the
replacing the bridge to prevent damaging
bridge to avoid overheating which will result in
the new bridge.
bridge failure. Refer to the Detail in Fig 17.
BRIOQE INSTALLATION DETAIL
Before doing this procedure, follow the Pressure
it
out of the box.
Relief Procedure warning on page 13 to reduce
the risk
of
a fluid injection injury, injury from mov-
ing parts, or electric shock. Unplug rhe sprayer/
6. install the new circuit breaker in the reverse order of
7. Reinstall the pressure control cover and screws.
disassembly.
1. Remove the pressure control cover and screws.
2. Use a small screwdriver to slide the terminal adapter
3. Disconnect the single black wire from the circuit
4. -Use
a
5/8" socket wrench to loosen the nut and boot
off the circuit breaker terminal.
breaker (309) to the ON/OFF switch (303).
(310) on the circuit breaker button.
24
307-750