Graco ULTRA AIRLESS 230-963 - Manual (Page 31)

Use a plastic mallet to gently tap the displacement
pump from the rear to loosen the drive housing
ing away from the front end bell.
(6) from the front end bell. Then pull the drive
CAUTION
DO NOT allow the gear cluster to fall when
removing the drive housing It is damag-
ed if dropped. The cluster may stay engaged in
either the front end bell or the drive housing.
DO NOT lose the thrust balls located at each
end of the gear cluster or allow them to fall
with grease, usually stays in the gear recesses, but
between gears. The ball, which is heavily covered
could be dislodged.
If caught between gears and
not removed, the balls will seriously damage the
drive housing. If the balls are not in place, the
bearings will wear prematurely.
14. Use a 6 mm hex key wrench to remove the
two screws and lockwashers from the
underside of the motor mounting frame. Be sure to
support the motor to keep the sprayer from
15. Lift the motor assembly off the frame.
16. Place the new motor assembly on the frame and
align-with the frame mounting holes. Install the
screws and lockwashers tightly.
17. Liberally grease the gear cluster and pinion
gear and pack all bearings in the motor front
end bell. Check to be sure the thrust balls are in
place.
18. Be sure the bronze-colored bearing and the
silver-colored bearing are properly placed on
the crank shaft
19. Align the gears and push the drive housing
straight onto the front end bell and locating pins.
Starting at Step 13 and working backwards, con-
tinue to reassemble the sprayer.
NOTE: Use a turning motion on the conduit when
feeding wires through it.
Reinstall the motor shield and pressure control
cover.
Fig
32