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Rachet Drive Pulley Problem

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  • Rachet Drive Pulley Problem

    Hi lads, on lane 3+4 of our 90XLi machines the rachet drive pulley will not kick in unless it is turned first manually by hand. The belt itself is not loose or stretched and it has been checked for oil on it. Any ides on how to solve the problem would be appreciated or if the is a trouble shooting page on the web would be helpful as it doesnt seem to be any of the problems in our 90XLi manual. Cheers!

  • #2
    Re: Rachet Drive Pulley Problem

    Well the ratchet wheel is its own little belt that comes off of the outside sheave of the PBL. Is this your setup? Is the spring missing? There should be a spring from the tensioner pulley attached to the PBL that keeps downward force on that belt. Did you try swapping belts with the pair next to it? Without the belt even on, does the ratchet wheel spin freely? Does your lower yoke of your PBL spin freely? If either end is frozen, I guess you'd know it already, just some thoughts.
    The impossible often has a kind of integrity to it which the merely improbable lacks.

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    • #3
      Re: Rachet Drive Pulley Problem

      the tensioner pulley is keeping force on the belt that part is ok. I did not take the belt off and see if the wheel spins but now that u say it I can hear a slight noise that would sound like the wheel is trying to spin. I have not got a spare belt for it at the moment

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      • #4
        Re: Rachet Drive Pulley Problem

        Sounds like lack of lubrication. Take the belt off….It should spin freely with little effort. If not….Tear it a part clean the shaft and bushings and re-lube. While you have it apart drill a hole in the center of the top of the tube so that it can easily be oiled.

        Triac

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        • #5
          Re: Rachet Drive Pulley Problem

          Triac one of the boys just told me that the PBL was took out today and that it was all re-lubed. They didnt however switch it on without the belt off to see if the wheel would rotate so I will try this.

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          • #6
            Re: Rachet Drive Pulley Problem

            When I said the pulley should spin freely without the belt, I meant by hand. You cant always believe that your guys lubed something when they said they did…I know. They might have but didn’t do it properly.

            Triac

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            • #7
              Re: Rachet Drive Pulley Problem

              When the lift is running the pulley should also be spinning. It stops when a ball is on the lift arm and the rod accuates the ratchet assembly ?
              If that is the case it sounds like a tension problem on the belt or the key for the ratchet pulley mounting shaft is out of place or missing.

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              • #8
                Re: Rachet Drive Pulley Problem

                If that is the case it sounds like the key for the ratchet pulley mounting shaft is out of place or missing.
                <font size="2" face="Verdana, Helvetica, sans-serif">I go for M.Rees SJ's answer.
                So it goes.

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                • #9
                  Re: Rachet Drive Pulley Problem

                  sometimes it might be your lifter assembly is bindind,I have found that when the 3/8-16x9 bolt that goes through the shaft is tightened causes the lifter to bind,what I have done is grinded down the brass flange bearings so the shaft 070-011-063 stick out 1/16 futher than the flange bearing so when the 3/8 bolt is tightened the lifter assembly will be able to actuate more freely cause the 070-008-191 brkt will thightened up against the 063 shaft and not the flange bearings.Works great for light weight balls.Feliz Dia.

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                  • #10
                    Re: Rachet Drive Pulley Problem

                    The lifter should sit aproximatly 1/8 to 1/4 inch above the ball door. If this is too low, the ball will not ba able to actuate the ratchet.

                    Comment

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