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spotting solenoid


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  • spotting solenoid

    Has anyone ever used a 8-32 machine screw to attach the solenoid to the spring loaded mechanism? I mean a cheap screw with threads all the way up to the head of the screw. I'm having the domino effect where they are all wearing and causing a double shuttle or rather a half dry spot where the pins come back up in the cups pushing the bin up causing bent or broken cups. These screws are on all 24 lanes. I went to Fastenall and bought 8-32 socket hd cap screws that have a 3/4" body size shank & ground off the extra threads. I realize that a spring pin should be used but the holes are now egged out. Any comments would be appreciated. BTW I am not the one that did this and it really makes me angry to do substandard work like this. IMO
    Yeah but, We've always done it that way.

  • #2
    Re: spotting solenoid

    I would go with the larger hole and use a roll pin. I have drilled out some of the older style (sholder bolt) types. You will have to shave a bit off the center link or it will bottom out on the pin and wont lock. the part #'s are in the book, with directions of what to cut in the footnotes. Drilling out the existing stuff works fine.


    • #3
      Re: spotting solenoid

      only for a quick fix. But as soon as the lane shuts off it gets the right parts. It does not happen very often though. Are all the selonoids and links matched or are they mixed? if the spot sol. has .250 hole and the links are .156 that would defenitely cause sporadic problems.
      U.S. Army/AVN


      • #4
        Re: spotting solenoid

        They are all .156 which is the body size of an 8-32 screw and the grade 8 8-32 soc.hd. cap screw is 1&3/4 long, thats the only way to get a 3/4" long shank so it is not pulling on threads and by grinding off the threads so there is only enough room for an 8-32 nut to bottom out on the screw shank will get me by for the short term. To answer your question, they are all matched with the 5/32 hole but for now I will have to hurry and use the cap screw for all 24 because they are all starting to fail and when time allows, go back and do it the right way as you guys explained. Thank you for your help.
        Yeah but, We've always done it that way.


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