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  • Alignment Issue

    I spoke too soon in my first post about my new 4512. Although I
    thought that it was perfectly square to the miter slots, I discovered
    that was in fact not square.

    I'm now trying to line up the blade heel to toe.

    I have the back cover off and had no problem loosening the adjustment
    bolts. The problem is that while I can get the trunnion closest to the
    back cover to slide back and forth in its adjustment slots, I can't
    get it to move far enough to the right to line up with the other
    trunnion. I have had no luck moving the trunnion at the front of the
    saw. Those of you with this saw know that it's pretty hard to get your
    hands in there anyway and there is certainly no room to swing a
    hammer inside the cabinet to move that front trunnion. For that matter
    I don't even know if the holes for the front trunnion bolts are
    machined oversized for adjustment purposes like the back ones are.

    Anyway, I can't move the one in the rear over enough to lineup and I
    can't move the front to give me some more room to adjust. Does anybody
    have an idea how to get the front trunnion to move? I'm pretty screwed
    adjustment wise if I can't do something.

  • #2
    Re: Alignment Issue

    I wish I could help with that, but that was a big issue for me when I had my sears contractor saw and vowed never again once I found out that hybrids and cabinet saws had the trunions mounted to the cab and not the table so all you had to do was loosen 3 out of 4 table bolts and gently nudge into alignment tighten and done!!

    Why Ridgid didn't pick up on that with their previous model R4511 design, as it would have been huge to home hobbyists in that regard I will never know. Just for that reason I kept my R4511 when I upgraded to a cabinet saw.

    Hopefully one of the more knowledgeable members that has successfully done the adjustment that you are working on will be able to provide some help. Hope you can get it aligned to your satisfaction.
    Bob

    Comment


    • #3
      Re: Alignment Issue

      Here is one of the places that helped me decide to get my 4512 and the setup, etc of it. This is his full review of the saw. He has a seperate blog on aligning the table. There are a lot of useful links in the blog.
      Hope this helps
      Mike

      edit, everything is in the first link, scroll down.
      Last edited by me5269; 03-05-2013, 05:19 PM.
      Mike

      Comment


      • #4
        Re: Alignment Issue

        have you loosened the bolts that secure the front trunion to the underside of the table? page 36 of the 4512 OM i have gives a good account of how to align the blade with a miter slot. i do not, however, agree with the OM's suggestion that the blade should be tapped to effect any adjustment. here is the OM from the the ts3612:

        http://www.ridgid.com/ASSETS/88E7884...le_Saw_Man.pdf

        check page 22, "Checking Heeling Adjustment or Parallelism of Sawblade to Miter Gauge Groove", for better tactical instructions on adjusting the trunions. be advised that the 3612 had 6 bolts attaching the trunions to the table, 3 on the front trunion and 3 on the rear trunion. the 4512 has 2 on each of the front and rear trunions. otherwise, the adjusting technique is the same. hope this helps.
        there's a solution to every problem.....you just have to be willing to find it.

        Comment


        • #5
          Re: Alignment Issue

          I'm pretty sure I fixed it. I turned the saw on its top. Without gravity working against me on the trunnion I was able to get in through the bottom and move the front trunnion. As long as its stays aligned I'll be happy.

          Comment


          • #6
            Re: Alignment Issue

            just curious how the position of the blade relative to the miter slot was evaluated when the saw was resting on it's top, up side down.
            there's a solution to every problem.....you just have to be willing to find it.

            Comment


            • #7
              Re: Alignment Issue

              When I flipped it over I was able to move the front trunnion in the direction that I knew it needed to go. After that I tightened everything down and flipped it and then did the alignment.

              Comment


              • #8
                Please help!!!
                right out of the box, my blade was about 1.5 mm off to the left (measured several times repeatably with a digital dial indicator)... I had followed Ridgid manual page 36, trying to align blade to the miter slot,
                When I loosened up 3 of the 4 trunnion bolt I was able to slighly move blade / motor assembly to the left, however not by 1.5 mm, but rather by 0.3 mm only, when I was tightening bolts up, the whole blade / motor aasembly moves out agan to the right, instead of staying in adjusted position...
                (1) Do I need to lower the blade down before loosening up 3 trunnion bolts? Why? Ridgid instruction Manual say so, but I don't see a reason, since in down blade position I will not know if I moved blade enough to the left or too much... I would need to raise blade up and down again and again after each dead hammer blow just to check alighment...
                (2) Where exactly on a trunnion do I need to hit / tap with dead blow hammer? There is not enough room under the table to tap onto trunnion... a litle sketch or picture wuold really help me! Thanks!
                (3) The other problem is with trunnion design - hole diameter size is 3/8 inch (checked with calipers), and threaded bolt diameter is 29/64 inch (checked with calipers), so the bolt / hole fit clearance is only 3/8 - 29/64 = 0.078125 inches or 1.98 mm (or 0.99 mm if shifted linearly to one side in one hole)... however, trunnion needs to pivot around 4th bolt, so I am not sure if there is enough angular clearance to shift blade motor by 1.5 mm to the left... I wish trunnion holes were adjustable and had a bigger hole size clearance with bolt...
                (4) I am thinking about removing rear trunnion (unfortunately front trunnion cannot be removed), and increasing both trunnion holes from 29/64" to 9/16". My main concern is about front trunnion - I cannot remove it and enlarge holes because it is very difficult to remove blade assembly, and get to it... I am worried about possible mis-alighment of trunion tilting tracks relative to blade assembly due to two enlarged 9/16" rear trunnion holes and two original 29/64" front trunnion holes...
                Any comments and feedback are very welcome!!! Thank you very much!
                Max

                Comment


                • #9
                  Please help!!!
                  right out of the box, my blade was about 1.5 mm off to the left (measured several times repeatably with a digital dial indicator)... I had followed Ridgid manual page 36, trying to align blade to the miter slot,
                  When I loosened up 3 of the 4 trunnion bolt I was able to slighly move blade / motor assembly to the left, however not by 1.5 mm, but rather by 0.3 mm only, when I was tightening bolts up, the whole blade / motor aasembly moves out agan to the right, instead of staying in adjusted position...
                  (1) Do I need to lower the blade down before loosening up 3 trunnion bolts? Why? Ridgid instruction Manual say so, but I don't see a reason, since in down blade position I will not know if I moved blade enough to the left or too much... I would need to raise blade up and down again and again after each dead hammer blow just to check alighment...
                  (2) Where exactly on a trunnion do I need to hit / tap with dead blow hammer? There is not enough room under the table to tap onto trunnion... a litle sketch or picture wuold really help me! Thanks!
                  (3) The other problem is with trunnion design - hole diameter size is 3/8 inch (checked with calipers), and threaded bolt diameter is 29/64 inch (checked with calipers), so the bolt / hole fit clearance is only 3/8 - 29/64 = 0.078125 inches or 1.98 mm (or 0.99 mm if shifted linearly to one side in one hole)... however, trunnion needs to pivot around 4th bolt, so I am not sure if there is enough angular clearance to shift blade motor by 1.5 mm to the left... I wish trunnion holes were adjustable and had a bigger hole size clearance with bolt...
                  (4) I am thinking about removing rear trunnion (unfortunately front trunnion cannot be removed), and increasing both trunnion holes from 29/64" to 9/16". My main concern is about front trunnion - I cannot remove it and enlarge holes because it is very difficult to remove blade assembly, and get to it... I am worried about possible mis-alighment of trunion tilting tracks relative to blade assembly due to two enlarged 9/16" rear trunnion holes and two original 29/64" front trunnion holes...
                  Any comments and feedback are very welcome!!! Thank you very much!
                  Max

                  Comment


                  • #10
                    First thing you need to remember is your measurements are off. Every fastener on this saw is metric no standard measurements at all. Depends on how much effort you really want to get into is how easy this can be. I recently tore my saw down to nothing to replace a worn worm gear for the height adjustment. When it was apart I drill out all the trunion holes to 17/32 and this was more then enough clearence to do any kind of work I needed to. I also modfied the front cover to make it easy to remove.
                    When I put my saw back together and measure to the miter slot I was only off ten thousands of an inch. A quick adjustment with my homemade pals and I was back in action in no time. Buy a pair of pals to see what goes into making a set. They did not make a set that fit the ridgid when I bought mine. I don't know if they make a set or not now.
                    If I can do these kind of things anyone can. One said someone said to me once was you can't break it, it is already broke. Give it a try.
                    Over the weekend I'll get time to take some pictures of my homemade pal set if you would like.
                    Enjoy the journey!
                    Don

                    Here is a link to my recent problem. https://www.ridgidforum.com/forum/po...t-for-the-4512
                    Last edited by Paarker; 07-15-2015, 04:14 PM. Reason: Added a link.

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