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Balls riding against cushion ball door side

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  • Balls riding against cushion ball door side

    Hi,

    The balls will ride againt the cushion in the corner on the ball door side.

    Anyone else have this problem?

    In the past I have replaced the old worn rubber rivet in the bottom corner with AMF urethane rivets and it took care of 98% of those stops.

    I now have one machine that has this problem again regularly. It has the urethane rivet even changed out the cushion assembly. No Different

    No obvious bounce plate problems

    Does any one have any other solutions that you have found?

  • #2
    Re: Balls riding against cushion ball door side

    Hi Kevin,
    A simple, quick, and inexpensive fix that I have used is to put the bottom rivet in backwards. Pull the rubber pad away from the plank, and insert the rubber rivet through the back of the pad and pull it through .The protruding part of the rivet pushes the ball away from the cushion assembly. Make sure you use a flexible rivet (not one of those that has a nut threaded onto it. )

    Mark
    There is light at the end of the tunnel - just be sure it is not a train.

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    • #3
      Re: Balls riding against cushion ball door side

      Hi Mark,

      I may just try that, what the hay!

      Thanks, Kevin

      Comment


      • #4
        Re: Balls riding against cushion ball door side

        Your cushion shock assembly(the spring) is maybe out of adjustment.
        If it is too loose your hanger weldment will be too much to the rear of the machine, causing a ball getting stuck between the ball door and the cushion.
        This is if you are lucky...worse case...bounce plate loose or broken!!

        Martin
        So it goes.

        Comment


        • #5
          Re: Balls riding against cushion ball door side

          We sometimes put a 'cheater block' between the cushion and the tube. A piece of 1 by 2 will work just fine. You will need to drill holes for the bolts.

          This changes the angle and helps prevent balls from sticking against the cushion.

          Fever [img]/content/btubb/images/%%GRAEMLIN_URL%%/usflag.jpg[/img]
          I really enjoy the Simpsons. My problem is that I am starting to look like Homer. Doh!!!

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          • #6
            Re: Balls riding against cushion ball door side

            Check for a bad vibration dampener on the bounce plate.....or a broken bounce plate bracket.

            JK

            Comment


            • #7
              Re: Balls riding against cushion ball door side

              We sometimes put a 'cheater block' between the cushion and the tube. A piece of 1 by 2 will work just fine. You will need to drill holes for the bolts.

              This changes the angle and helps prevent balls from sticking against the cushion.

              Fever
              <font size="2" face="Verdana, Helvetica, sans-serif">We do this on certain machines as well, does work great. Also check what the King said, rear dampeners on the bounce plate could cause it also. They dont really have to be broken, just worn causes it too. Good luck!
              All I want in life is to turn wrenches and climb around pinsetters/pinspotters again :/

              Comment


              • #8
                Re: Balls riding against cushion ball door side

                hi guys,
                did you realize that the position of the cushion assy. is still in the same place as the original 82-30 with the vertical ball lift. on this model the ball exit hole was located right at the end of the cushion. when the kicker system was designed the exit hole was moved forward but the cushion stayed where it was. in theory the whole cush.assy. should have been moved forward about 5 inches.
                regards,
                len.
                Regards,

                Len.

                Comment


                • #9
                  Re: Balls riding against cushion ball door side

                  Originally posted by len marsden:
                  hi guys,
                  did you realize that the position of the cushion assy. is still in the same place as the original 82-30 with the vertical ball lift. on this model the ball exit hole was located right at the end of the cushion. when the kicker system was designed the exit hole was moved forward but the cushion stayed where it was. in theory the whole cush.assy. should have been moved forward about 5 inches.
                  regards,
                  len.
                  <font size="2" face="Verdana, Helvetica, sans-serif">Yes Len, I never thought about that. I guess AMF wanted it to be as easy as possible to convert over to kickers by keeping as much of the original setup as they could. I'm sure glad they changed the bounce plate design though!! [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img] I hate having to stick my arm under the bounce plate to unbolt the back corners on the vertical lifts. [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img]

                  Louie
                  Experience: Currently Help Maintain 44 82-30s and 50 82-70s.

                  Comment


                  • #10
                    Re: Balls riding against cushion ball door side

                    I too have had that problem. Two things I have found, and corrected the problem. !st... cushion pad cracked or split causing nice little indentation that the ball always seems to find. I like the idea of reverse rivot but I just beef up rubber to remove those little cushion pockets. Another problem i came across was a cushion shock that was a litle on the short side. Adjust spring collar to 11/2inches from top of shock... this will out cushion a little forward. If all else fails.. I get my "B" to tear out bounce plate. My "B" hates me.
                    Help me!!! My 70's have me by the nuts.

                    Comment


                    • #11
                      Re: Balls riding against cushion ball door side

                      [QUOTE]Originally posted by Joeyamfi:
                      [QB]I too have had that problem.

                      What a minute...I am the "B". I get the "C" mech to tear out bounce plate. I'm such an idiot. LOL
                      Help me!!! My 70's have me by the nuts.

                      Comment


                      • #12
                        Re: Balls riding against cushion ball door side

                        [QUOTE]Originally posted by Joeyamfi:
                        [QB]I too have had that problem.

                        lt me explain.... I use to be the "A" mech but I gave the title to the house owner because he don't pay me enough to be Head Mech. So I opted for "B" and things run so much smoother...thankyouverymuch.
                        Help me!!! My 70's have me by the nuts.

                        Comment


                        • #13
                          Re: Balls riding against cushion ball door side

                          No one mentioned the AMF velcro facings. We started useing them about three years ago. No problems.
                          &quot;Gun control is the policy of tyrants&quot;
                          Rep. Rob Bishop (R-UT)

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                          • #14
                            Re: Balls riding against cushion ball door side

                            what type of cushion shocks are some of you using
                            are you going to a auto parts store [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img]
                            with a amf shock it doesn't make it longer or shorter with more or less tension on the spring.
                            if things aren't going right just use a bigger hammer! DIRT

                            Comment


                            • #15
                              Re: Balls riding against cushion ball door side

                              1st.....AMF velcro facings suck....too much cost....buy the EBN top six hole unit.

                              The weldment on a 30 is different.......not useable on a 70 because of angle difference......that has something to do with ball door placement too.

                              JK

                              Comment

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