Squeaking Cman belt sander

[pwschuh]

Model 113.226420. It's a table mounted version.

Got this thing at a rummage sale for $20. Seems to work fine but it squeaks sumthin' fierce. Of course I don't have a manual and I can't find an on-line version. Should, I just turn it on and start shooting WD-40 at everything that's moving?

 

[frankush]

Somethings probably rubbing or you have a bad bearing. Try and localize where the noise is coming from and check it out. Try pulling the belt and removing the disk table and see if the noise persists.

 

[Pumpman1968]

Sounds like the smoke is almost ready to come out. Probably a bad (non repairable) bearing. .....but check it out and clean it up, you might get lucky

 

[pwschuh]

So if the bearing goes, this is a throw-away?

 

[WWIIjeep]

So if the bearing goes, this is a throw-away?

Make that plural. There's at least 4 bearings in it, and probably 6.

A bad bearing doesn't necessarily make it a throw-away. You can learn the rapidly-disappearing art of power tool maintenance and repair. You should find and fix the problem before it makes something else break; i.e., if it's one or both of the motor bearings, replace them before they seize, or before they cause extra wear on the brushes and commutator, or damage the armature.

It's probably got a mix of ball bearings and sleeve bearings. The bearing at the commutator and brush end of the armature is a common culprit. Also the bearings on the belt wheels, which are probably sleeve bearings on your sander. The other bearings are generally more protected and don't fail as often. Hit those places with some WD-40. Ideally, you'd want to take the wheels off so you can get to the wheel bearings. If WD-40 stops the noise, you've found the problem but haven't really fixed it. Next step is to fix it. Sometimes sleeve bearings just need re-lubing (depends on how long they've been running without lubrication); noisy ball bearings should be replaced.

 

[frankush]

That's an older unit that should have an Emerson motor in it. Most of the parts are no longer available thru Sears. That doesn't mean you can't find generic parts for it. I have an older unit with the Emerson motor as well and I know for a fact that the motor is NLA. Most of the newer belt/disc sanders in the under $300 range are junk. I think that's a good enough reason to try and maintain the older stuff. Here's the parts diagram and breakdown.

http://www.searspartsdirect.com/par...00015882/00001?blt=06&prst=0&shdMod=113226420

 

[pwschuh]

Thanks. I've been to that Sears page. Wish the diagram was more clear, but it's better than nothing. Just need to find the time to take it apart a little and investigate. I'm pretty sure the noise is not coming from the motor.