How do I clean the machine
Once in a while you need to open the top cover (3 screws at the top) and remove it together with the metal topcover (to assure the tube is kept in place). When it's open, you can clean the tube with a cotton stick and remove the grit from the centre of the impeller (the part with the 6 blades in).
When reassembling the top, make sure the tube runs through the plastic and metal cover AND make sure the end of the slider (with the 2 pins) is well inserted in the fork that controls the gritflow.
IN "MANUALS" YOU CAN FIND PICTURES HOW TO OPEN THE TOPCOVER
You do not need to unscrew the blades in the impeller!
The body of the machine (with the motor in it) should never be opened nor cleaned!!
In case of doubt, email info@blstrsander.com