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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.
CAUTION
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 will wear
prematurely.
1. Remove the motor shield (14). Remove the front
cover (31). Disconnect the hose (47).
2. Remove the pressure control cover (36). Discon-
nect the four motor leads.
3. Unscrew the connector (54) from the pressure
control. Pull the wires through the connector.
32
31
Bronze
Apply 6 oz.
bearing grease
Silver
Fig. 43
Motor
18a 10
18
9
18b
51
39
4. Unscrew the connector (54) from the motor and
remove the conduit (22).
5. Remove the screws (51) from the recess of the
drive housing.
6. Remove the screws (21 and 30) from the the mo-
tor bell (F).
7. Use a plastic mallet to tap the displacement pump
(39) from the rear to loosen the drive housing (18)
from the motor bell (F). Pull off the drive housing.
8. Remove the screws (37) holding the motor to the
frame. Lift off the motor.
9. Mount the new motor on the frame.
10. Slide a connector (54) over the conduit (22) of the
new motor and screw two or three threads of it into
the motor. Tighten the locknut up to the motor.
11. Liberally grease the gear cluster (9) and pinion
gear (G) and pack all bearings in the motor bell.
Be sure the thrust balls (10) are in place. (One ball
is included with a replacement drive housing.)
12. Place the bronze-colored washer (18b) and THEN
the silver-colored washer (18a) on the shaft pro-
truding from the big gear in the drive housing (18).
13. Align the gears and push the drive housing (18)
straight onto the motor bell (F) and locating pins.
14. Continue to reassemble the sprayer.
14
64
21
63
F
G
40
41
63
54
47
22
37
54
36
30
63
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