Need Help Heeling (Paralleling) blade on Ridgid R4512 Table Saw

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Forum topic by ChrisK622 posted 12-27-2011 07:35 AM 5467 views 3 times favorited 5 replies Add to Favorites Watch
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2 posts in 1381 days

12-27-2011 07:35 AM

I am still a novice, but really enjoy woodworking and improving with every new project.
Just purchased my Ridgid R4512 about two months ago and love it. Started a new bookshelf project and noticed my blade is 1/16th out of parallel, measuring from the miter gauge slot. I did as the instruction books says and loosened the 4 bolts on the bottom of the unit and moved the back of the blade until it was square. When I re-tightened the bolts, it went back to the old position.
I tried to adjust my fence, but that did not work too good either. I ripped my wood and am not square. This is concerning me because I was having so much fun and my wife really wants a few projects done.
At the end of the day, I can’t make a square cut.

5 replies so far

View Lifesaver2000's profile


532 posts in 2150 days

#1 posted 12-27-2011 09:14 AM

Hi Chris. I don’t have a 4512, but have a Craftsman 21833. This is a very similar saw, and I believe the adjustment is very similar. I will give you a few points that I have picked up. I can’t promise you can get everything perfect, but I will say that my saw is well within the recommended tolerances as best as I can measure.

First, on the blade to miter slot alignment. On the top of the saw, there are two allen screws recessed into the top. These are the 45 and 90 degree bevel stops. These should be backed off while doing any alignment. The 90 degree one especially has caused a lot of problems for people in preventing them from getting the blade adjusted as far as they need it to go. Backing this off (I don’t remember which way to turn the screw, you will have to check your manual) will allow you plenty of room for adjustment.

Next, be sure you are NOT making your adjustments with the blade at its absolute full height. If you crank the blade all the way up, it will “rack” the blade to a slight angle when the crank handle stops. This isn’t a phenomenon isolated just to this saw though. I was reading the manual for the SawStop professional cabinet saw the other day, and it recommended also that the adjustments not be made with the blade at the full height for the same reason. If it can happen in a $3000+ saw, I don’t think having it in a $450 saw is surprising. I suggest making the adjustments with the blade down about a half inch from maximum, and if you know you will normally only be cutting 3/4 to 8/4 stock, then maybe even adjust it with the blade height at two inches.

When making the adjustment, be sure that you loosen three screws off, and then just slightly loosen the fourth. Even the three loose screws don’t need to be actually backed out loose, just enough to allow movement. That way there isn’t much movement when you tighten them. It might even be useful to slightly go past the zero point in your adjustment, so that when you tighten the screws it moves to where you want.

As for the fence, there is a recent thread about the fence on this saw, you might look there for some hints. I am not sure if the 4512 fence is exactly like mine, but I did not have any trouble adjusting it when I first got the saw, and have never had to readjust it.

Hope some of this helps.

View knotscott's profile


6325 posts in 2414 days

#2 posted 12-27-2011 03:04 PM

Lifesaver’s tips are excellent. When you retighten the trunnion bolts, don’t tighten each one fully one at a time. To prevent unwanted movement, tighten each one a little at a time, progressing towards fully tightening them.

What prevented you from getting the fence aligned with the blade?

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

View ChrisK622's profile


2 posts in 1381 days

#3 posted 12-27-2011 06:45 PM

Thanks. Your advise did the trick and I am back in business.
I wish the world had more people in it that is so willing to help.
Thanks again and will send pictures when done.

View Lifesaver2000's profile


532 posts in 2150 days

#4 posted 12-27-2011 07:08 PM

Great news Chris. Glad to be of help

View kommon_sense's profile


14 posts in 1379 days

#5 posted 12-28-2011 11:35 PM

Great tips! I just purchased a 4512. Finished setting it up last night and found the saw blade is 0.036” out of alignment with the mitre slot. Manual doesn’t mention any of the tips you guys mentioned, so you saved me a lot of headache and frustration!!!

-- Expert Sawdust Maker

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