Motor
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. 18.
1.Remove the four screws (13) and front cover (12). Disconnect the hose (30) and drain hose (80).
2.Remove the pressure control cover (21). Discon- nect the four motor leads.
3.Unscrew the connector nut (103) at the pressure control. Swing the conduit (27) away from the connector.
4.Remove the conduit seal (18) from around the wires in the pressure control. Pull the motor leads through the elbow, one at a time.
CAUTION
Always pull the motor leads one at a time to avoid loosening the terminals.
5.Loosen the nut of the connector (25) at the motor. Pull the conduit (27) away from the motor and then pull the wires through the conduit, one at a time.
6.Remove the connector (25) elbow from the motor, and then pull the wires through it one at a time.
7.Remove the screws (42) from the recess of the drive housing (14). Remove the screws (72) and washers (54) from the rear of the motor's front end bell.
8.Remove the screws (53) and washers (54) from the rear of the motor's front end bell.
9.Lightly tap the lower rear of the drive housing (14) with a plastic mallet to loosen the assembly from the motor (16). Pull the drive housing assembly 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.
10.While supporting the motor to keep the sprayer from tipping, remove the capscrews (35) which hold the motor to the cart. Lift the motor off the cart.
11.Mount the new motor to the cart.
12.Liberally apply bearing grease to the gear cluster (56). Be sure the thrusts balls (14c,16b) are in place.
13.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.
14.Continue reassembling the sprayer. Follow the NOTE and WARNING, below.
NOTE: Use a turning motion on the conduit when feeding wires through it.
WARNING
All wires connected to the
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