Sherwin-Williams ULTIMATE 824-032 - Manual (Page 20)

20 824-033
Motor
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 7.
WARNING
ELECTRIC SHOCK HAZARD
To reduce the risk of Electric Shock: wait
5 minutes after turning sprayer off before
servicing to allow stored current to dis-
charge.
NOTE: Refer to Fig. 18 and parts list, except as
noted.
1. Relieve pressure.
2. Remove motor shield (14). Remove front cover
(31). Disconnect hose (47) at pump. Disconnect
drain hose (101) from pump (39).
3. Remove outlet cover on pressure control wiring
box. Disconnect four motor leads. See Fig 14.
4. Unscrew conduit connector (125) from motor and
pull motor leads from conduit (22).
5. Remove screws (51) from recess of drive housing.
6. Remove screws (21 and 30) from motor bell (F).
7. Use a plastic mallet to tap displacement pump (39)
from rear to loosen drive housing (18) from motor
bell (F). Pull off drive housing.
NOTE: To avoid damage to the drive housing: Do not
drop the gear cluster (9), which may stay engaged in the
motor bell or in the drive housing. Do not lose the thrust
balls (10) or drop them between gears. The balls usually
stay in the shaft recesses, but could be dislodged. If the
balls are not in place, the bearings wear prematurely.
8. Lower pressure control (116) by unscrewing motor
mounting screws (37).
9. Lift off motor (1).
10. Mount and center new motor on frame and attach
pressure control (116) with motor mounting
screws (37).
11. Insert motor leads through connector (125) and
conduit (22) to pressure control. Screw connector
(125) two or three threads into motor. Tighten
locknut up to motor. Connect four motor leads.
See Fig. 14.
12. Liberally grease gear cluster (9) and pinion gear
(G) and pack all bearings in motor bell. Be sure
thrust balls (10) are in place. (One ball is included
with a replacement drive housing.)
13. Place bronze–colored washer (18b) and then
silver–colored washer (18a) on shaft protruding
from big gear in drive housing (18).
14. Align gears and push drive housing (18) straight
onto motor bell (F) and locating pins.
15. Continue to reassemble sprayer.