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  • Table Shaft

    Is there any way to fix the key way on the table shaft for the table drive when it becomes worn. I was once told that when I put the key in to take a punch and hit the shaft around the key to pinch it in but, is there another way without changing the shaft.
    David Cliffe
    Asst. Mgr.
    Mechanic
    Youth Advisor
    Pro Shop Mgr.

  • #2
    Re: Table Shaft

    There unfortunately arent any fixes that I know about to repair the worn keyway. For a temporary fix i have removed the key and beat on the shaft to mushroom the edges of the keyway, and replaced the key. But thats only temporary.

    Comment


    • #3
      Re: Table Shaft

      Fix it correctly or it will let loose on Saturday night when you are out to dinner.

      Comment


      • #4
        Re: Table Shaft

        King is correct; this thing will dump at the least opportune time.

        I’ve repaired key housings on 30’s with liquid steel, but wouldn’t recommend it on a 70. This is where the table shaft usually breaks.

        Chances are if the keyway is worn the splines are not far behind and the shaft is already under extra stress at this point.

        Triac

        Comment


        • #5
          Re: Table Shaft

          Yup
          Replace it !! Little work doing it. But it'll save you alot of cussing down the road.
          Even a old dog can bury a bone

          Comment


          • #6
            Re: Table Shaft

            Cut a shim from an aluminum can; you can add one to each side if you need it. Will lenghten the life of the shaft.

            If the freeplay starts to show up again, it will compromise the keyway in the body of the table drive. So, as soon as it starts to show up again, get rid of it.
            Pinspotters do not break down when they are not running!

            Comment


            • #7
              Re: Table Shaft

              Dave you are getting lazy!!!!!!!!!!

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              • #8
                Re: Table Shaft

                Of course, make sure you inspect the shaft thoroughly for cracks or stress at the keyway.

                Slide a key through the key slot on the table drive body to make sure that no damage is there.
                Pinspotters do not break down when they are not running!

                Comment


                • #9
                  Re: Table Shaft

                  Remove the shaft.Cut 3 new keyways then,OH HELL just put in a new shaft.

                  Comment


                  • #10
                    Re: Table Shaft

                    Bump for David
                    Pinspotters do not break down when they are not running!

                    Comment


                    • #11
                      Re: Table Shaft

                      Luster King you for one no that I am not lazy because you know what I do each summer to my machines to get them ready for leagues each year. For those of you that don't I have 24 lanes and each summer I take 4 machines and shut them done. I remove pits, rollers, roller brackets, ball lifts,respot cells, table drives, and check all assemblies. I also check all chassis and plugs.
                      With all the mods and new ideas on this site I thought someone out there might have found a way to save the shaft. I guess only a few people on here can ask a question on here without being called lazy. I have 30 years in this business I know when to change a table shaft.
                      David Cliffe
                      Asst. Mgr.
                      Mechanic
                      Youth Advisor
                      Pro Shop Mgr.

                      Comment


                      • #12
                        Re: Table Shaft

                        David...

                        I've had the same problem. Went through tightening the TDA body many times before finally just replacing the shaft. Once the TDA starts slipping on the shaft there's no real way to stop it for very long.

                        If you decide to try saving the shaft, Mike's way is the best to deal with it, IMO. But you'd better have a spare on hand.
                        -- Larry

                        Comment

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