1

Unplug the machine.

Undo the 4 screws on the motor end cover and remove the cover.

2

Remove the circlip and the plastic fan from the top of the motor

3

Using a philips screwdriver, undo the 2 screws for the sheetmetal cover for the sensor

4

The sensor can be removed by undoing 2 more scews

5

The sensor can be removed.

To clean the sensor, use a cotton swab and some cleaning alcohol to clean the gap between each of the three black U shaped sensors.

Put the sensor back after cleaning to test if the error is cleared. If the error still persists, replace the RPS sensor.

6

Perform the steps in reverse to reassemble the machine. You can test the operation of the drill before putting the plastic fan back and end cover back onto the machine.

7

NOTE:

If the sensor connector is too short, you can loosen the sensor cable gland and push the cable in towards the sensors. A short cable may cause some pins to note connect properly.