Any drum sander needs constant cleaning due to the nature of the machine. Dust and other debris can get into almost every area of a drum sander, so it is important to clean after every use. No matter what type drum sander you use, dust is its number one enemy.
Employ a Vacuum Attachment
Many drum sanders from floor to bench have the capability to accept dust containment systems or vacuum attachments. This will greatly help reduce any dust flying that might clog moving parts. However, a containment or vacuum system will help to reduce, not eliminate.
It is still a good idea to inspect your drum sander after each use even if you do have some sort of dust eliminator. Keep in mind it is extremely important to properly dispose of collected dust and clean the bag or collection container before another use.
Clean the Paper
A great deal of built-up wood debris, or sawdust residue, can accumulate on a sandpaper sheet or belt that you need to remove to get better results. This can be accomplished using what is akin to a rubber eraser. Use a piece of hard rubber and press it to the paper while operating the sander. This will loosen the residue and if employing a vacuum or dust containment system should suck it up, removing the paper and making it more effective while also giving it longer life.
Check the Brushes
Electric motors have brushes that conduct the current between stationery wires and moving parts collect dust quite easily. The motors are also accessible – usually behind a cap or cover that can be unscrewed for inspection or replacement. Brushes may be attaché to a spring so be careful when inspecting these. A great idea is to blow out the brush chamber with compressed air. If you do not have an air compressor in your shop or garage, purchase individual cans of compressed air that can get the job easily done. These cans of compressed air typically are packed with long, platic extension tools making them a great tool for blowing out many different areas of your floor sander tool to keep it as dust free as possible.
Any motor needs to have its moving parts lubricated somewhat. Unfortunately, oiled motor parts attract dust, dirt and other debris quite easily. When doing your after session inspection, always look at any bearing load areas that are lubricated to make sure there is no excessive build up of wood debris. Sometimes all that needs to be done is a quick wipe with a dry, clean cloth followed by a little replacement lube.
Check to see no sawdust enters inside a drum that could make it off balance.