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Drive Housing Replacement
WARNING
Follow the Pressure Relief Procedure Warning
on page 3 to reduce the risk of a serious injury.
NOTE: See Fig. 28 for this procedure .
NOTE: Stop the sprayer at the bottom of its stroke to
get the crank (H) in its lowest position. To lower the
crank manually, use a screwdriver to rotate the blades
of the motor's fan.
1. Remove the front cover (31). Remove the shield
(14).
2. Disconnect the spray hose.
3. Remove the screws (33) from the bearing
housing.
4. Tap the rear of the pump (39) with a plastic mallet
to loosen it from the drive housing (18). Pull the
bearing housing (27) straight off of the drive
housing (18).
5. Remove the screws (51) from the drive housing.
Torque the screws to 34 N.m (300 in-lb).
The bronze–colored washer.
Apply 175 cc of bearing grease.
The silver–colored washer.
49
33
31
Fig. 28
9
18b
18
63
51
27
39
47
6. Remove the screws (30, 21) from the motor (1).
7. Tap the drive housing (18) with a plastic mallet to
loosen it from the motor. Pull the drive housing
straight off of the motor.
NOTE: Do not drop the gear (9), which may stay en-
gaged in the front of the motor or in the drive housing.
Do not lose the balls (10) or drop them between 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 prematurely.
8. Use approximately 175 cc of the bearing grease,
supplied with the drive housing replacement kit, to
grease the gear cluster (9). Check to be sure the
balls (10) are in place.
9. Place the bronze–colored washer (18b) and the
the silver–colored washer (18a) on the shaft which
protrudes from the large gear in the drive housing
(18).
10. Align the gears. Push the new drive housing
straight onto the motor and its locating pins.
11. Continue to reassemble the sprayer. Torque the
screws (33) to 34 N.m (300 in–lb).
14
21
63
1
18a
10
H
30
63
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