Kinzo 8E116 Motor Bearing Replacement

Introduzione

The electric motor shaft is attached to the motor housing with two bearings. During its lifetime, these bearings can wear down, leading to friction and imbalance in the motor shaft.

This guide will show you how to replace these bearings.

Cosa ti serve

Passo 1 remove the head

Kinzo 8E116 Motor Bearing Replacement, remove the head: passo 1, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, remove the head: passo 1, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, remove the head: passo 1, immagine 3 di 3

Make sure the drill press is turned off and the power cord is unplugged.
Loosen tension set screws (on both sides) and make sure tension pulling handle is pushed left.
With the 4mm hex key, loosen the set screws holding the head in place on the column.
Remove the vertical adjustment handles to prevent them from damaging when removing the head.
Remove the v-band from the pulley.
Pick up the head from the column and lay it on a table with the on/off buttons facing up.

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Passo 2 disconnect power cable

Kinzo 8E116 Motor Bearing Replacement, disconnect power cable: passo 2, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, disconnect power cable: passo 2, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, disconnect power cable: passo 2, immagine 3 di 3

With the small flathead, remove the screw holding the cover for the motor power cable inlet.
Take off the cap protecting the connectors.
Loosen the screws holding the cable ends in place and remove the cable from the connector housing.
Put the cap back and attach the cover to protect the connector during the rest of this procedure.

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Passo 3 disconnect motor from mount

Kinzo 8E116 Motor Bearing Replacement, disconnect motor from mount: passo 3, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, disconnect motor from mount: passo 3, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, disconnect motor from mount: passo 3, immagine 3 di 3

Using the 12 and 14 mm wrenches, loosen the mounting bolts.
Turn over the head and loosen the mounting bolts on that side as well.
Place the head with back facing up, remove the bolts and remove the motor from the mount.

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Passo 4 remove pulley

Kinzo 8E116 Motor Bearing Replacement, remove pulley: passo 4, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, remove pulley: passo 4, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, remove pulley: passo 4, immagine 3 di 3

Remove the set screw from the pulley with the small flathead.
Remove the pulley from the shaft using a pulley removal tool.
The pulley has a diameter of 9 cm at its base.
Make sure the inside of the pulley is free of dirt or particles for easy reassembly.

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Passo 5 remove fan

Kinzo 8E116 Motor Bearing Replacement, remove fan: passo 5, immagine 1 di 2

Kinzo 8E116 Motor Bearing Replacement, remove fan: passo 5, immagine 2 di 2

Remove the screws holding the fan cover and remove the cover. A few mallet taps might be needed to encourage the cover.
Use a small crowbar to leverage the fan from the shaft.

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Passo 6 remove rotor

Kinzo 8E116 Motor Bearing Replacement, remove rotor: passo 6, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, remove rotor: passo 6, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, remove rotor: passo 6, immagine 3 di 3

Unscrew the fan side motor housing bolts.
Use the mallet to tap around the cover edges and get it to loosen.
Once it is loose, the shaft, rotor and housing cover can be pulled from the motor housing.

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Passo 7 remove fan sided bearing

Kinzo 8E116 Motor Bearing Replacement, remove fan sided bearing: passo 7, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, remove fan sided bearing: passo 7, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, remove fan sided bearing: passo 7, immagine 3 di 3

Carefully tap off the cover from the bearing with the mallet.
Pull the bearing from the shaft using the pulley removal tool.

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Passo 8 remove pulley sided bearing

Kinzo 8E116 Motor Bearing Replacement, remove pulley sided bearing: passo 8, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, remove pulley sided bearing: passo 8, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, remove pulley sided bearing: passo 8, immagine 3 di 3

The pulley sided bearing is located in the motor housing.
Clamp the bearing from the pulley side with the bearing removal tool, and use the mallet to hit it from its seat.
Clean the bearing seat.

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Passo 9 replace pulley sided bearing

Kinzo 8E116 Motor Bearing Replacement, replace pulley sided bearing: passo 9, immagine 1 di 3

Kinzo 8E116 Motor Bearing Replacement, replace pulley sided bearing: passo 9, immagine 2 di 3

Kinzo 8E116 Motor Bearing Replacement, replace pulley sided bearing: passo 9, immagine 3 di 3

Before replacement, make sure the shafts, bearing seats, and bearings are clean and lubricated for easy reassembly.
Insert the new bearing into the empty seat in the motor housing.
Use the bearing removal tool to grip the inside.
While centering the bearing, tap the bearing around the outside to press it a little into the seat.
Remove the bearing removal tool, and keep tapping around the outside of the bearing until it is fully in.

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Passo 10 replace fan sided bearing

Kinzo 8E116 Motor Bearing Replacement, replace fan sided bearing: passo 10, immagine 1 di 2

Kinzo 8E116 Motor Bearing Replacement, replace fan sided bearing: passo 10, immagine 2 di 2

After cleaning the bearing seat and lubricating the bearing, press it in by hand, or use tapping method from the previous step.
Press the cover containing the bearing on the shaft.

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