Drive Housing
WARNING
INJECTION HAZARD
To reduce the risk of serious bodily injury, follow the Pressure Relief Proce- dure Warning on page 11 before check-
ing or repairing any part of the spray system.
NOTE: Refer to Fig. 17 for this procedure.
NOTE: Stop the sprayer at the bottom of its stroke to get the crank (C) in its lowest position. To lower it manually, carefully rotate the blades of the fan with a screwdriver.
1.Remove the front cover (12).
2.Remove the four screws (9). Lightly tap the lower rear of the bearing housing (51) with a plastic mallet to loosen it from the drive housing (14). Pull the bearing housing/connecting rod/pump assembly off the drive housing (14).
3.Remove the screws (42) from the recess of the drive housing (14). Remove the screws (72,53) from the rear of the motor's front end bell.
4.Remove the screws (53) from the rear of the motor's front end bell.
14b
14 14c
C
A
51
10
9
12
13
5.Lightly tap the lower rear of the drive housing (14) with a plastic mallet to loosen it from the motor (16). Pull the drive housing (14) off the motor.
CAUTION
DO NOT drop the gear cluster (56) when removing the drive housing (14). The gear may stay engaged in the motor or drive housing.
DO NOT lose the thrust balls (14c, 16b), or allow them to fall between the gears. The balls, heavily covered with grease, usually stay in the shaft recesses, but could become dislodged. If caught between gears and not removed, the balls will seri- ously damage the drive housing. If they are not in place, the bearings will wear prematurely.
6.Liberally apply bearing grease to the gear cluster (56). Be sure the thrusts balls (14c,16b) are in place.
7.Place the dark washer (14b) and then the light one (14a) on the shaft protruding from the big gear in the drive housing. Align the gears and push the new drive housing straight onto the motor and its locating pins.
8.Continue reassembling the sprayer.
53
54
16
14a
16b
56
Fig. 17
16 78
01752C