BRUSH DRIVE SYSTEM
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BRUSH DRIVE MOTOR - CARBON BRUSH INSPECTION
1
Remove the brush drive motor. See the
Brush Drive Motor Replacement
section for instructions.
2
See Figure 3. Place the brush drive motor in a vice as shown. Be careful not to damage the pulley.
FIGURE 4
FIGURE 3
3
See Figure 4. Remove (2) “F” nuts and remove the end bell from the motor.
4
Remove and measure the carbon brushes. If they are worn to 3/8 inch (9.66 mm) or shorter, replace
both carbon brushes. Remove all loose carbon and dirt from the inside of the motor.
5
Follow steps 1-3 in reverse order to reassemble.
6
Test the motor to make sure it operates properly.
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BRUSH DRIVE MOTOR REPLACEMENT
1
Drain the solution and recovery tanks and remove the solution tank from the machine.
2
Tip the recovery tank to the side and disconnect the batteries.
3
Remove the vacuum motor. See the
Vacuum System
section
for instructions.
4
Disconnect the wires from the brush drive motor. Take note of which wire color goes to each terminal for
reassembly.
F
F
BA 500
Service Manual
8
