belt sander

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Forum topic by woodnewbee posted 06-21-2010 06:10 AM 2059 views 0 times favorited 9 replies Add to Favorites Watch
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76 posts in 2528 days

06-21-2010 06:10 AM

Topic tags/keywords: question

not sure if I am posting this in right place but I have a craftsman belt sander and the drive belt keeps running off the drive pulley. I got it from a friend who was moving and he told me did not know what to do to make it work. Has anyone had similar or have ideas to fix. All shafts appear to be straight and solid.

9 replies so far

View Rick's profile


8287 posts in 2455 days

#1 posted 06-21-2010 08:57 AM

Is there no type of a small adjustment Knob or Lever to Adjust the Tracking? I’ve owned 3 BS and they’ve all had an adjustment somewhere. If it keeps running off the Drive Pulley it’s pretty well for sure that it needs Adjustment.

Has to be a Nut/Bolt on the Drive Pulley that you could loosen off and reset. Might even just be Dirt or Something in the release Mechanism that you slacken off to get the new Belt on.

Do you have a Model Number? Apprx. Age? Looked on the www for a Manual?

-- Hope Everyone Is Doing Well! .... Best Regards: Rick

View woodnewbee's profile


76 posts in 2528 days

#2 posted 06-21-2010 04:29 PM

Not sure on the age, mod #315.11720. Looking for manual find it is actually made by Ryobi all those years ago. The sanding belt stays on fine just don’t find much of a way to adjust drive belt. It may be that I need a new belt which I will try to get locally.

View a1Jim's profile


115177 posts in 2999 days

#3 posted 06-21-2010 07:40 PM

Like Rick said there should be knob that adjust tracking of the belt.

-- Custom furniture

View CryptKeeper's profile


132 posts in 2372 days

#4 posted 06-21-2010 08:29 PM

If you don’t have an obvious adjustment knob there may be an adjustment screw right behind the front roller.

-- Ron - Any day that I don't learn something new is a wasted day.

View drax0r's profile


18 posts in 2333 days

#5 posted 06-21-2010 08:53 PM

I’ve had a similar issue with my belt sander.

I turn the screw so that the belt rides in the appropriate track, but as soon as I apply the sander to some material the belt starts to run off. When I lift the sander off the board it auto-tracks itself back to where it should be.

I find that this only happens with Gator brand 3×18… the Norton brand 3×18 works just fine.

Maybe try a different brand of belt?

View woodnewbee's profile


76 posts in 2528 days

#6 posted 06-22-2010 05:35 AM

this is not a sanding belt issue it is the belt that drives the sanding belt. there is a knob to adjust the sanding belt but I haven’t located any for other belt. Am on quest for a manual which may help some. Think I might purchase new drive belt as well.

View jusfine's profile


2405 posts in 2348 days

#7 posted 06-22-2010 05:54 AM

So does the belt slip when you apply it to the lumber?

-- Randy "You are judged as much by the questions you ask as the answers you give..."

View Dadoo's profile


1789 posts in 3412 days

#8 posted 06-22-2010 08:37 PM

Take it apart and clean it, especially where the tracking knob meets the lever thingy.

-- Bob Vila would be so proud of you!

View woodnewbee's profile


76 posts in 2528 days

#9 posted 06-23-2010 08:38 PM

no slipping just kicks drive belt off. no time to work on now will get to asap and apply what I have learned here

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