No announcement yet.

Rash of interlocks


Adsense Classic 1

  • Filter
  • Time
  • Show
Clear All
new posts

  • Rash of interlocks

    As of this week I am having a rash of interlocks developing throughout the house. I have been going to each lane that has had a problem and adjusted the sweep and table switches to correct them. Is this something that I should expect to run rampant throughout the house?

  • #2
    Re: Rash of interlocks


    Check C1 pins and socket, contactors in the chassis, and your problems will go away.


    • #3
      Re: Rash of interlocks

      first culprit would be sweep contactors. particularly if you have a certain vendors AB, or GE contactors.


      • #4
        Re: Rash of interlocks

        Sounds like you’re on the right track adjusting the cam switches first. Very important the sweep and table stop where they are supposed to.

        The sweep stopping properly at first guard is usually the most important. If you can’t achieve this with cam adjustments so the sweep stops dead and consistent, you got coasting problems.

        Most common coasting problems usually caused by:

        Lower contacts (sweep/ table contactors) bad
        Burnt (or loose)C1 pins
        Weak or bad motor capacitors
        Loose gearbox (or worn brushes for National motors)
        Sticking centrifugal mechanisms
        Cam switches going bad
        Bad wire in motor plug



        • #5
          Re: Rash of interlocks

          Cams and contacts are our biggest culprits for interlocks. 99/100 times when the cams get adjusted and new contacts are installed interlocks are byebye
          All I want in life is to turn wrenches and climb around pinsetters/pinspotters again :/


          • #6
            Re: Rash of interlocks

            Are they Natinal motors? if so don't forget to check the frictional braking of the motor, they have carbon brushes to help it to brake to stop the costing. That is if your problem is costing.
            There is always more to life, but would someone tell me what it is!


            • #7
              Re: Rash of interlocks

              What kind of chassis are you running? [img]/content/btubb/images/%%GRAEMLIN_URL%%/confused.gif[/img]
              I've had enough of hope & chains.


              • #8
                Re: Rash of interlocks

                The rest of the story... elco chassis with single board conversion. General Electric motors with the centrifical switch bypassed by a start relay. Found one lane to basically come down to a start relay that was mildly burnt up, causing motor to coast a little bit. Other lane that I was having problems with I replaced the sweep shaft, both cams, as well as the start relay. Not sure which part on the sweep replacement fixed the problem, but sweep now comes to a dead stop at all guards and at zero.


                • #9
                  Re: Rash of interlocks

                  Glad to here that you got it fixed. I hate when I have a continuos interlocking problem.
                  There is always more to life, but would someone tell me what it is!


                  • #10
                    Re: Rash of interlocks

                    Well done GPPL mech.


                    Topic Starter RibbonScript


                    Adsense Classic 2

                    widgetinstance 666 (Related Topics) skipped due to lack of content & hide_module_if_empty option.

                    Rake sweeping out of time, and pin launching onto lane.

                    I work on some nice old Brunswick A-2 pin setters. Most issues I've come across haven't been to problematic to figure out. But being I can't seem to get it to recreate the issue...

                    Strange sweep problem

                    I’m a rookie mechanic and have been working on pinsetters for 2 years. One of my lanes has a problem with a sweep possibly coasting. I don’t know what could be causing it...

                    GSX Distributor shaft bearings

                    Two part topic:
                    1. Plastic bearing (#66) used in place of regular sealed bearing (#51) -- thoughts?

                    2. ANY of these bearings with the black support mount...

                    The Legacy of the A2

                    I was recently disheartened to learn that a bowling center that I once serviced was actively looking to replace their A2's. I understand that most military bases and educational...

                    Table turning on short stroke.

                    Hello dear Bowltech members.
                    First let me say thank you for your time. am plagued by a big issue for three weeks now.
                    our technician is working full time on another...

                    Another pivot bearing broke.

                    One and a half year old GSX machines. This will be the 5th pivot bearing that has broke. This one decided to take out a few things with it. Snapped the stroke limiter shock stud...