Graco 231-033 Instructions-Parts List Manual page 34

WARNING
To reduce the risk of serious injury, follow the Pres-
sure Relief Procedure warning on page 24 when-
ever you are instructed to relieve pressure.
NOTE: Read the GENERAL REP AIR INFORMATION
on page 24 before doing this procedure.
NOTE: Refer to Fig 35–1 for this procedure.
1. Remove the motor shield (59).
2. Remove the pressure control cover (63). Disconnect
the four motor leads.
3. Loosen the conduit connector nut (345) at the pres-
sure control (75).
4. Swing the conduit (1) away from the pressure control
elbow (31).
5. Remove the conduit seal (29) from around the con-
duit elbow coming into the pressure control. Pull the
motor leads through the elbow, one at a time.
CAUTION
Always pull the motor leads one at a time to avoid
loosening the terminals, which could result in a bad
connection and poor sprayer performance.
6. Loosen the connector nut (31) at the motor and pull
the conduit (1) away from the motor . Pull the leads
through the conduit, one at a time.
7. Unscrew the connector elbow from the motor.
8. Pull the wires through the elbow, one at a time.
9. Remove the front cover (49).
10. Remove the two drive housing screws (26).
11. Remove the two lower screws (13) and lockwashers
(20) and then the two upper screws (16) and lo-
ckwashers (20) from the front of the motor (73).
12. Tap the drive housing (67) with a plastic mallet to
loosen it from the front of the motor (73), and then pull
the drive housing straight off.
MOTOR REPLACEMENT
DO NOT drop the gear cluster (51) when removing
the drive housing (67). The gear cluster may stay
engaged in the motor front end bell or the drive
housing.
DO NOT lose the thrust balls (9) located at each
end of the gear cluster (51) or drop them between
gears. The balls, which are heavily covered with
grease, usually stay in the shaft recesses, but could
be dislodged. If caught between gears and not re-
moved, the balls will seriously damage the drive
housing. If the balls are not in place, the bearings
will wear prematurely.
13. While supporting the motor (75) to keep the sprayer
14. Install the new motor (75).
15. Liberally apply bearing grease to the gear cluster
16. Place the bronze-colored washer (67b) THEN the
17. Align the gears and push the drive housing (67)
18. Continue reassembling the sprayer . Use a turning
CAUTION
from tipping, remove the four motor mounting screws
(8). Lift off the motor.
(51). The gear area should have approximately 4
total ounces of grease, Grease is supplied with the
drive housing replacement kit. Be sure the thrust
balls (9) are in place.
silver-colored washer (67a) on the shaft protruding
from the big gear in the drive housing (67).
straight onto the front of the motor (73) and locating
pins.
motion on the conduit (1) when feeding wires through
it. Install the conduit seal (29) around the wires in the
conduit elbow (345) at the pressure control to keep
contaminants from entering the motor conduit. See
the Detail in Fig 35–1.