Replacing the 3 Motor Bearings in the Rainbow D4, D4C, and D4-SE Vacuum Cleaners: PAGE 2


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Removing the Slinger Ring reveals the first motor bearing. This bearing is the one closest to the water source in the Rainbow vacuum's water pan. The vapor from this water can corrode the bearings, especially if the vacuum is stored with water left in the pan (it is best to store all models of Rainbow vacuums with the pan dry).

Next, remove the four Phillips screws that secure the two halves of the vacuum together. It may take a long Phillips screwdriver to reach these screws.

The halves of the vacuum will then come apart, but cannot be completely separated because of the wiring. This should be fine, so do not attempt to disconnect the wires.

Turn the motor assembly upright, and remove the four screws that secure the white Motor Shroud to the unit. Then once the white shroud is removed, remove the Motor Fan by turning it Clockwise. You can see this fan in the image above.

Removing the Motor Shroud and Motor Fan will reveal the top of the Rainbow's electrical motor, where the brushes and top bearing are located. You will now need to remove the contact brushes.

Start by disconecting the electrical wire that is attached to each of the two brushes with a spade type fastener. Grasp this spade fastener with a pair of pliers and carefully pull it free. Wiggle it gently as you pull if it does not want to come free. Do this for both brushes.

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Copyright 2009 Thomas Penrose