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  • Motor contactor

    Lately one of my pinsetter have started to flicker. When I turn it on, the contactor will not quite close and it will flicker momentarely. Then during play it will do it ever so often. I know it could be several problems. Have cleaned all contacts. Its an A-2, field converted. Federal Pacific contactor. How about some input about best logical solution. Thanks PJ
    I'm going fishing and camping!

  • #2
    Re: Motor contactor

    Here's what I'd start with:

    Pull the main power plug and tighten/check all screws on both terminal strips, the breaker, and the contactor (this check, and vacuuming out the box, should be done as part of the annual part of your PM).

    If the breaker is one of the stab connection types (older machines like 20,000 range) be sure that the bottom connections on the breaker are making good contact, I've got one that liked to work loose ...

    Inspect the wiring that goes to the turret/deck jam switches (have seen a cc belt almost saw the wiring in half)

    Turn machine on and tap on the electrical box underneath the motor start relay (a weak MSR can cause this, too)

    With machine on, wiggle all wiring to masking unit and manager's line to see if you have a loose/partially broken wire.

    If the machine flickers at the same time the deck shifts to set new pins, cable tube springs could be weak, or dj switch slightly mis-adjusted.

    Hope something here helps:

    Kevin

    [ July 19, 2001: Message edited by: KL Kevin ]

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    • #3
      Re: Motor contactor

      You might want to also make sure that your turret jam microswich adjustment has not loosened up.
      41 years and still learning....
      lanedoctor@hotmail.com

      Comment


      • #4
        Re: Motor contactor

        Kevin once again offered some great advice, I would make sure you check all micro switches if it's not the contactor.

        Drill
        Drill

        David Bolt
        Champaign, IL
        USBC Silver Coach
        IBPSIA BOD
        IBPSIA Advanced
        Technical Certified
        Pro Shops

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        • #5
          Re: Motor contactor

          PJ:
          All good advise; would also check the overcenter springs in the motor start relay.
          With power disconnected, gently push down on phenolic of motor start and observe whether springs snap point up, (the springs tend to get lazy). This allows points to misconnect.
          Hope of some help.
          Roscoe.

          Comment


          • #6
            Re: Motor contactor

            Quote:]Originally posted by KL Kevin:
            Here's what I'd start with:

            Pull the main power plug and tighten/check all screws on both terminal strips, the breaker, and the contactor (this check, and vacuuming out the box, should be done as part of the annual part of your PM).
            DONE THAT!
            If the breaker is one of the stab connection types (older machines like 20,000 range) be sure that the bottom connections on the breaker are making good contact, I've got one that liked to work loose ...
            CHECKED!
            Inspect the wiring that goes to the turret/deck jam switches (have seen a cc belt almost saw the wiring in half)
            DONE!
            Turn machine on and tap on the electrical box underneath the motor start relay (a weak MSR can cause this, too)
            TAPPED JUST SLIGHTLY AND THE RELAY LOST CONNECTION. CHANGED RELAY WITH A NEW ONE. STILL DOES IT BUT I HAVE TO TAP IT HARDER. THE SPRING IN THE OLD RELAY WERE WEAK!
            With machine on, wiggle all wiring to masking unit and manager's line to see if you have a loose/partially broken wire.
            CHECKED ALL WIRES!
            If the machine flickers at the same time the deck shifts to set new pins, cable tube springs could be weak, or dj switch slightly mis-adjusted.
            IT ONLY FLICKERS WHEN I FIRST TURN IT ON AND SOMETIMES DURING PLAY!
            Hope something here helps:

            Kevin

            [ July 19, 2001: Message edited by: KL Kevin ]
            [/QUOTE]

            THANKS KEVIN FOR YOUR HELP, MAYBE IT IS THE CONTACTOR OR THE TRANSFORMER? WHERE IT ALL STARTED, THE MOTOR OVERHEATED AND THE OVERLOAD KICKED OUT. AFTER COOLING OFF I TRIED TO RESET IT WOULDN'T. HAD TO PULL OUT THE BIMETAL WITH A SCREWDRIVER. THANKS PJ
            I'm going fishing and camping!

            Comment


            • #7
              Re: Motor contactor

              PJ:

              What do you mean by "pull out" ... did you have to bend it back into shape or remove totally??

              If you had to bend it, odds are it's shot, and at that point, unless yours are replaceable, it sounds like the contactor and overload need to be replaced.

              In general, transformers are go/no go, they either work or they don't.

              The first rule of troubleshooting: When something stops working that worked for a long time, look for WHAT CHANGED in the system. You'll get there a lot quicker ...

              Kevin

              Comment


              • #8
                Re: Motor contactor

                if you have subway ball returns make sure you check the wires down there , ihad the same basic problem last year and that is where the answer was!!!!!!! [img]/content/btubb/images/%%GRAEMLIN_URL%%/eek.gif[/img] [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img]

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                • #9
                  Re: Motor contactor

                  Quote:]Originally posted by lanedoctor:
                  You might want to also make sure that your turret jam microswich adjustment has not loosened up.[/QUOTE]

                  Check the rods that support the front of the turret. I have had pinchasers grab them to pull themselves up, bending them slightly in the middle, kind of giving them a spring action that causes the turret jam microswitch to chatter which in turn causes the start relay and contactor to chatter. Usually the right rod gets bent on the odd lane and the left rod gets bent on the even lane.

                  Ken

                  Comment


                  • #10
                    Re: Motor contactor

                    Quote:]Originally posted by KL Kevin:
                    PJ:

                    What do you mean by "pull out" ... did you have to bend it back into shape or remove totally??

                    If you had to bend it, odds are it's shot, and at that point, unless yours are replaceable, it sounds like the contactor and overload need to be replaced.

                    In general, transformers are go/no go, they either work or they don't.

                    The first rule of troubleshooting: When something stops working that worked for a long time, look for WHAT CHANGED in the system. You'll get there a lot quicker ...

                    Kevin
                    [/QUOTE]

                    I found what happened. The reset plunger in the overload is broken and it wouldn't release the the flat plunger that is attached to bi-metal. The slot where the bi-metal is attached is also broken and had to pull it out with a pair of needle nose. New contactor on order! Thanks for all your help. This web site is just like television, how did we ever get along without it. I wish it was here 18 years ago. PJ
                    I'm going fishing and camping!

                    Comment


                    • #11
                      Re: Motor contactor

                      First of all, thanks for all the help. You are all great. Installed my new contactor, and between the old FP and an old one I had in the shop was able to create a good one. Thanks again PJ
                      I'm going fishing and camping!

                      Comment

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