Ridgid R4511 Arbor Washer Issues

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Forum topic by elroyy posted 09-15-2010 05:14 AM 1678 views 0 times favorited 5 replies Add to Favorites Watch
View elroyy's profile


37 posts in 2242 days

09-15-2010 05:14 AM

Topic tags/keywords: r4511 arbor washer arbor nut torque tablesaw

Hi, I’ve searched and seen this topic posted to death! :) However, I’m having an issue w/ my arbor washer. First of all, my saw is not covered under the recall. The production code is CD0850. I’ve been taking blades on and off experimenting with cross cutting, ripping, and cutting dadoes. Evidently, I’ve overtightened the arbor nut and distored the shape of the washer. It’s very difficult to remove and I’m afraid that I’m going to damage the threads on the arbor. I’ve tried to file and hone the arbor washer, but am not getting any improved results.

I have a part number but, of course, can’t find the part online. I waited too late to call Ridgid customer service and will have to wait until tomorrow. If they can provide the part, I believe I’ll order 4 or 5 to have some spares.

I’ve read that I may have over torqued the arbor nut but I cannot find any reference to what torque specs I should use (I’ve searched Ridgid forums and the provided owner’s manual).

Can anyone provide some insight into the torque specs or where I could find the arbor washer, or an appropriate substitute?

By the way, thanks very much for the myriad welcome notes I’ve gotten since joining the site last week.


-- "Without lethality, it's just a parade."

5 replies so far

View DrewM's profile


176 posts in 2421 days

#1 posted 09-15-2010 05:29 AM

I always make the arbor nuts just sung on all my saws including my r4511. If I had to make a torque guess it would be no more than 30lbft. Hopefully that helps you.

-- Drew, Delaware

View elroyy's profile


37 posts in 2242 days

#2 posted 09-15-2010 05:52 AM

Drew, thanks. I’ll certainly not crank them down again. If the blade slips, then I’ll tighten a little.



-- "Without lethality, it's just a parade."

View Brandon's profile


4151 posts in 2373 days

#3 posted 09-15-2010 06:09 AM

I’d call Ridgid in the morning, but this site should also help:

(Look at page “B”)

-- "hold fast to that which is good"

View PurpLev's profile


8523 posts in 3070 days

#4 posted 09-15-2010 06:24 AM

I just tighten the the nut to a medium pressure, far less than on my router. this is true to all TS, not only ridgid.

FYI, the rotation of the arbor as the saw spins is counterclockwise – which will tighten the nut to it’s required torque all on it’s own as long as the nut is closed firmly. you do not need to over tighten it yourself.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View knotscott's profile


7146 posts in 2798 days

#5 posted 09-15-2010 07:03 AM

I hand tighten, then just give it a little snugging with the wrench. The arbor nuts are self tightening when the saw runs, so they don’t need to be cranked down.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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