Question about Ryobi Tools & Hardware - Others
Ryobi belt sander model BE321: could not get belt to track. it ran about 3/4" our from housing and stayed there. at about the same time the sander started jumping as if the timing/drive belt were skipping cogs on the drive pulley. Replace the belt. Sander ran less than 5 minutes and belt quit moving even though motor was running. Removed drive pulley. It was wallered out so that drive shaft was spinning inside of it. Replaced pulley with new one. Very soon the sanding belt started running off again and sander started jumping as if timing/drive belt was skipping. Sander was very hot on bottom - housing, rollers, sanding belt, etc. Suspect something wrong in sanding belt alignment mechanism, causing strain on rollers, pulleys, etc. If so what's the fix? Or any other ideas?
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Posted on Jan 02, 2017
SOURCE: Loose sanding belt
Hi, Consult your user manual for the instructions to install a new belt. Follow these instructions selectively to tighten the belt tension. Here they are....
CHANGING DRIVE BELT
Using a phillips head screwdriver, remove the two screws
in the center of the pulley cover.
Remove the cover.
Raise sanding belt to the vertical sanding position.
Next, loosen the hex head set screw. Raising the motor
pulley releases the belt tension.
Remove the old drive belt.
Fit the new drive belt on the drive pulley first and then on
the motor pulley.
Test belt tension by squeezing the belt with your fingers.
Adjust the belt tension with the hex head set screw until
there is about 1/4 in. (6 mm) of give.
Tighten the belt tension nut securely.
Note: Excessive tightness on the drive belt may cause
increased noise and overload the motor. Excessive
looseness on the drive belt may cause the drive belt to
fail prematurely and make a severe chattering noise.
Using a phillips head screwdriver, reinstall the pulley cover
and the two phillips head screws. Tighten securely.
Good Luck! Middles
Posted on Jan 08, 2009
SOURCE: Sanding Belt Slips Badly
Check and see if the pulleys on the sander are not glazed this somtimes will cause the belt to slip. Give them a good cleaning. If this does not help there is a good chance the spring on the belt tensioner is weak and need changed.
Hop this helps
Posted on Apr 14, 2009
The problem is that you have not set the adjustment properly. Back off the adjustment screws,slide on the belt and center it over both rollers, addust a little at a time both screws, after belt begins to tighten up stop adjusting. Turn the power switch on for about 1 second. Is the belt tracking? Adjust as necessary. Try the power again for longer and longer periods untill belt tracks in the center of the rollers. Tighten nuts to keep adjustment screws from backing out.
Posted on Jun 12, 2009
SOURCE: Belt slipping
I have a Ryobi sander with a belt slipping issue as well. The problem seems to be in the design, not on the user end. The drive barrel is made of a semi-hard, non-gripping material. Wood dust becomes a final release agent that breaks any grip that the barrel may have had.
To compound the problem, the more the belt slips the smother the underside becomes allowing for greater slippage.
I now know why this model was the least expensive unit. >.<
Posted on Jul 11, 2009
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