19
Note: Brushes should be replaced when they are worn to less than
1/2 inch. Check and replace both brushes at the same time. Brush
Repair Kit, Part No. 978-050, consists of: 2 brushes, 2 springs, and
2 clips.
1. Remove both inspection covers on Motor. See Figure 1.
2. Push in the Spring Clip to unhook it and then pull it out. See
Figure 2.
3. Loosen the terminal screw. Pull the brush lead away, but leave
the motor lead in place. Remove the brush and spring.
See Figure 3.
4. Inspect the commutator for burning, excessive pitting or gouging.
A black color on the commutator is normal.
5. Install the new brush so its lead slides in the long slot of the
brush holder. Push the terminal under the terminal screw washer.
Insure the motor lead is still connected at the screw. Tighten the
screw. See Figure 4.
6. Place the spring on the brush as shown in Figure 4. Push in and
hook the spring clip. Repeat this procedure for the other side.
Reinstall the inspection covers.
PowrTwin 5500™
Electric Convertokits - Service Instructions
WARNING:
Before servicing the electric motor, follow the Pressure Relief Procedure on Page 10. Once you have completed this
procedure, unplug the power supply cord. Failure to reduce pressure can result in serious injury. Observe all warnings.
FIGURE 1
FIGURE 2
FIGURE 3
FIGURE 4
