Announcement

Collapse
No announcement yet.

No Spotting

Collapse

Adsense Classic 1

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • No Spotting

    82-70 MP chassis

    Problem is solenoid won't activate on spotting, not even slighlty.

    The problem started yesterday, we changed the solenoid then it worked for a while. One of the other mechanics then changed the spot relay in the chassis. Again in worked for a while.

    My next step is to check the cams. Does anybody have any other ideas ?

  • #2
    Re: No Spotting

    Check C1 and C2 plug for connections.

    Wang

    Comment


    • #3
      Re: No Spotting

      Swap your chassis with another machine.

      If problem moves, it would indicate you have a bad SP socket, relay, or the connection to socket or a burnt pin in C1 receptacle (C1-36Y).

      If problem doesn’t move check for continuity from solenoid wires going to TS-17 (white) & the other wire going to TS-3 (black). Then check the continuity socket (C1-36Y) in the C1 plug to TS-3. *Note…The socket itself could also be burnt inside and give a false reading when doing a continuity check.

      The solenoid wires are high voltage. Kill the breaker on the wall before doing this continuity test.

      Triac

      Comment


      • #4
        Re: No Spotting

        Check the C1 plug terminal 36y . That wire goes to TS3 and then to spot solenoid. Good luck.

        Comment


        • #5
          Re: No Spotting

          Well I will bear all that in mind. At the moment it is playing on it's own. Were now on 3.5 games. I remember someone once had this problem it the uk. Changing the master circuit breaker on the rear control panel solved the problem. At first I was dubious but the information came from my regional mechanic, who has worked on 82-70's since they were first used in the uk.

          As it's now 10.20pm in the uk, and tomorrow is my day off. It is unlikely that I can post back till sunday AM.

          So perhaps if someone knows why this works, or can come out any say replacing the breaker is just a coincidence and the problem is not fully fixed I'd be grateful.

          Many thanks for the quick response from the gentlemen above. You have given me something to work with on sunday, if the problem is still there.

          Comment


          • #6
            Re: No Spotting

            The BE CB is wired into the Spot Solenoid circuit. These crap out quite frequently. Take suspect unit apart and you will find some burn and/or broken legs inside.
            "Where are we going, and why are we in a hand basket?"

            --Kat

            Comment


            • #7
              Re: No Spotting

              Originally posted by hmmmm:
              82-70 MP chassis

              Problem is solenoid won't activate on spotting, not even slighlty.

              The problem started yesterday, we changed the solenoid then it worked for a while. One of the other mechanics then changed the spot relay in the chassis. Again in worked for a while.

              My next step is to check the cams. Does anybody have any other ideas ?
              <font size="2" face="Verdana, Helvetica, sans-serif">I had this to happen to me on a 90. Someone changed the plunger return spring on the solenoid. The spring was too strong and the solenoid would not pull in to spot pins, it didn't hum or show any indication that it was trying to operate, but when we went to a weaker spring it started to operate again. Also check the rest of spotting mechanism for a bind or rubbing on something. Unplug the wires from the solenoid, put your meter on the wires, cycle the machine and check for proper voltage when spotting should occur.

              Comment


              • #8
                Re: No Spotting

                Did we rule out the table coasting past zero? Does the table run during the spot cycle? Will it spot on a strike cycle and not on a second ball cycle? Shuttle stop bolt gap ?
                &quot;Gun control is the policy of tyrants&quot;
                Rep. Rob Bishop (R-UT)

                Comment


                • #9
                  Re: No Spotting

                  Thank's to all,

                  It's now sunday evening and the machine is still working fine. So it was the breaker on the rear panel.

                  Just to confirm the problem we had, was the solenoid was not activating at all. No voltage was present. But if you turned the machine off for a while, it would work for a short period.

                  Don't know about you guys but when something breaks on me I like to see the broken part in my hand. These "now I'll work, now I won't fault are a pain"

                  Comment


                  • #10
                    Re: No Spotting

                    Hi Laurie from AMF here. the CB switch in the back end control box allows the solenoid TS17 to be powered up .To test if this is the fault, turn off , take the wires from CD on the CB switch and join them together.These do break down. You can operate a machine with CD disconnected , but you do not have the protection of the switch.Where are you in the UK.I am in Scotland and can be contacted here or thro amf.
                    Best wishes.
                    Laurie.

                    Comment

                    Topic Starter RibbonScript

                    Collapse

                    Adsense Classic 2

                    Collapse
                    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...
                    Working...
                    X