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Bearing Housing and Connecting Rod
WARNING
Follow the Pressure Relief Procedure Warning
on page 3 to reduce the risk of a serious injury.
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 pump. Refer to page 11.
2. Remove the front cover (31). Remove the screws
(33).
3. Tap the lower rear of the bearing housing (27) with
a plastic mallet to loosen it from the drive housing
(18). Pull the bearing housing and the connecting
rod (29) straight off of the drive housing.
4. Inspect the crank (H) and all other parts for exces-
sive wear. Replace worn or damaged parts.
5. Lubricate the inside of the bronze bearing (K)
evenly with motor oil. Pack the roller bearing (J)
liberally with bearing grease.
6. Assemble the connecting rod (29) and the bearing
housing (27).
7. Clean the mating surfaces of the bearing housing
and the drive housing.
8. Align the connecting rod with the crank (H). Align
the locating pins in the drive housing with the holes
in the bearing housing (27). Push the bearing
housing on to the drive housing or tap the bearing
housing into place using a plastic mallet.
Replacement
9. Install the screws (33). Torque the screws evenly
to 34 N.m (300 in–lb).
10. Reinstall all the parts. Refer to page15 to install
the pump.
33
31
Fig. 27
Torque to 3 N.m (300 in-lb)
Lubricate
18
H
J
29
27
49
35
20
38
39
K
47
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