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WARNING
Follow the Pressure Relief Procedure Warning
on page 3 to reduce the risk of a serious injury.
NOTE: See Fig. 24 except where noted.
1. Remove the shield (14), the front cover (31), and
the pressure control cover (36). Disconnect the
hose (47).
2. Disconnect the motor's electrical leads. See Fig.
25, page 18.
3. Unscrew the connector (44) on the pressure con-
trol. Pull out the motor's electrical leads.
4. Unscrew the connector (54) from the motor.
Remove the conduit (22).
5. Remove the screws (51) from the drive housing.
Remove the screws (21,30) from the motor (1).
6. Tap the rear of the pump (39) with a plastic mallet
to loosen the drive housing (18) from the motor
(1). Pull off the drive housing.
Torque the screw to 34 N.m (300 in-lb).
The bronze–colored washer.
Apply 175 cc of bearing grease.
The silver–colored washer.
49
31
Fig. 24
Motor Replacement
9
18b
18
27
51
33
NOTE: Do not drop the gear cluster (9), which may
stay engaged in the front of the motor or in the drive
housing. Do not lose the balls (10) or drop them be-
tween the gears. The balls usually stay in the recesses
for the shaft, but the balls could be dislodged. If the
balls are not in place, the bearings will wear prema-
turely.
7. Remove the screws (37). Lift off the motor.
8. Mount the new motor on the cart. Install the
screws (37).
9. Slide the connector (54) over the electrical leads of
the new motor. Screw two or three threads of the
connector into the motor. Tighten the connector's
locknut until it contacts the motor.
10. Grease the gear cluster (9) and the pinion gear (G)
liberally. Pack all the bearings in the front of the
motor with grease. Be sure the balls (10) are in
place.
11. Place the bronze–colored washer (18b) and then
the silver–colored washer (18a) on the shaft which
protrudes from the large gear in the drive housing
(18).
12. Align the gears and push the drive housing (18)
straight onto the front of the motor (F) and its
locating pins.
13. Continue to reassemble the sprayer.
14
21
63
1
G
18a
10
47
54
37
44,22
36
30
63
40
41
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