Rigid 3650 blade flutter

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Forum topic by yammi450 posted 03-06-2012 06:18 AM 1113 views 0 times favorited 8 replies Add to Favorites Watch
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25 posts in 2684 days

03-06-2012 06:18 AM

I bought a used rigid 3650 about a year ago. I had no problems with it ( that I noticed) until one day I had a kickback. Ever since then it’s had a blade flutter or more of a hermonic (it comes and goes once I hear it comming I stop the feed but it amplifies enough to ruin the cut and then stops). It doesn’t happen when Im plowing through a cut at a good rate, It’s only when I’m going slow, trimming less than 1/8”, or on thin material. I’ve tried new blades, aligning everything to .002” or less, new bearings, new arbor, adjusting the belt tension, tightening all bolts, and checking for any runnout or excess play. I’ve got this thing adjusted perfectly. The only other thing I can think of is maybe getting a stablizer for the blade. If anyone can give some other options I’m open for sugestions.

Oh, the blade is a new Freud 1/8’” kerf, but it does it with other full kerf blades too.

8 replies so far

View 1yeldud1's profile


301 posts in 3065 days

#1 posted 03-06-2012 10:38 AM

Have you replaced the belt ? —It may have a “weak” spot in it

View ShipWreck's profile


557 posts in 3775 days

#2 posted 03-06-2012 11:06 AM

I am shooting from the hip here, but….....

1. Is the belt glazed over, or any strange looking wear patterns?
2. Trunnions tight to the table?
3. Motor secure on it’s bracket?
4. Possible pulley loose?

Really hard to tell without seeing it up close and personal.

Good Luck Yammi, I hope you get it figured out.

View knotscott's profile


8055 posts in 3398 days

#3 posted 03-06-2012 11:40 AM

No idea really, but belt was one component that entered my mind….it’s cheap and easy too.

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

View Howie's profile


2656 posts in 2946 days

#4 posted 03-06-2012 11:52 AM

What Shipwreck says.
If you find out what it is, let me know. I have a 3650. So far no problems though.

-- Life is good.

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25 posts in 2684 days

#5 posted 03-06-2012 03:01 PM

I’ll try replacing the belt, but everything else is tight.
Thanks for the input. I wonder if the belt is a special order thing.

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301 posts in 3065 days

#6 posted 03-06-2012 06:05 PM

A lot of times a well stocked auto supply store might have a replacement belt for machines

View DIYaholic's profile


19623 posts in 2698 days

#7 posted 03-06-2012 06:22 PM

Try a link belt. HF has an inexpensive (notice I didn’t say cheap) one, that gets great reviews. I just recieved one that will go on my TS.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

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25 posts in 2684 days

#8 posted 03-06-2012 07:34 PM

The belt isnt a v belt, it’s a 1/2” ribbed belt like a serpentine belt

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