Thread: Power tool servicing

I don't take them apart unless they fail. A solid blast of compressed air, followed by a quick squirt of WD40 up the guts every few months. Seems to work.

Thanks Bodgy,

Pity, I don't actually have any compressed air, but I was thinking that WD40 might actually add to the problem of accumulating internal gunk and thought I might try some of that dry silicone lube stuff where appropriate. Depending on what I find when I take it apart I guess.
Norm

If you are going to dismantle them, sometimes it pays to take a few shots with a digital camera.

When you re-assemble them you can view the photos to see where that thingamajig really fits!!! Sometimes the time delay between dismantling and putting back again causes you to forget what seemed to be logical and obvious.

Belt sanders accumulate a lot of dust internally and over time the bearings seize.
Pull the machine apart blow out the dust and replace the armature bearings.
If you are not capable to do it take it to a proper service agent. That way they can check over the rest of the machine for you.
Do not spray any lubricant into an electrical tool or machine as you could short out the machine or as indicated earlier accumulate more gunk in the tool.

Old makita belt sanders are a great Tool (especially model 9401) but the 9924db and shorter belted 9900 are good too!. My advice is that bearings are the most common item that fails along with Bush Bearings at rear drum You will need a bearing Press to remove and re fit Bearings. I have a press and have worked profesionally as a power tool repairer for 10 years if you are near the central coast nsw and would like some help call Russ0418408150

Changing the brushes and a good cleaning should prolong its life. Many manufacturers will provide the schematics to old tools if you ask. ( I have a 1952 HomeCraft (now Delta) drill press and that is where I got the diagram