(Topic ID: 288322)

Williams Double Play Issue

By eddiesolis

1 year ago

Topic Heartbeat

Topic Stats

  • 20 posts
  • 6 Pinsiders participating
  • Latest reply 4 months ago by pdxpinball
  • Topic is favorited by 1 Pinsider


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    #1 1 year ago

    I just acquired a Williams double play and the bat motor keeps running even when game is over. It works, bats, pitches, catches, the turrets all work, it resets correctly and scores properly but the bat motor never stops spinning. Do you know what it could be? I cannot find schematics. Does anyone have them?

    #2 1 year ago

    I had a similar problem on my DP. In my case it was a non releasing/sticking armature within the bat motor and an incorrect fan. Suggest you check that armature.

    #3 1 year ago

    check bat motor relay contacts

    #4 1 year ago

    Firstly be very wary about adjusting/tampering with anything on this particular machine. It is regarded as one of the more complex EM machines where getting everything to work the way intended is not always easy.

    When the bat is activated the armature is energised to engage the motor. Conversely when not energised the armature should drop away to disengage the motor. With the pf in the upright position and above the bat motor fan you should be able to see the armature. See if it seems to be in its energised position (up) when the machine is turned off-if it is that could be your problem. These armatures often get coated in gunk preventing their free movement.

    This is an extract from Clay Hurrells pinrepair guide which may explain the function of the armature better:

    "Be careful when removing the motor from the gearbox. Often there is a small lightweight spring on the armature, along with a brass bushing. Don't loose these parts! The spring is used to push the armature gear away from the first gearbox gear. This way when the motor first powers on, it does so in a "free-wheel" mode. As the motor comes to full power after half a second, the armature is pulled towards the center of the motor's layered frame plates. This compresses the spring and engages the armature to the gearbox. Likewise when power is removed, the spring pushes the armature gear away from the first gearbox gear, causing the gearbox to immediately "stop on a dime".

    #5 1 year ago

    Thank you so much. I will try this right now and keep you all posted on the progress. Me and Smitty1963 will embark on this project.

    #6 1 year ago

    Our progress so far......

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    #7 1 year ago

    Put everything back together and it is still doing the same thing. It cycles and you can hear the clicks from the wheels that open and closes the contacts. Any ideas?

    #8 1 year ago


    #9 1 year ago

    What was the result of your observation of the operation of the armature before dismantling the motor/gearbox-was it activating and releasing?

    #10 1 year ago

    Yes, it freely goes up when energized and drops down when no power is applied. For example, if I cut the power to the motor by opening a contact, it goes down when stopped. Once power is applied, I goes up.

    Upon turning on the machine, the motor starts spinning even before starting a new game. It's as if a contact somewhere is stuck on/closed that applies power constantly.

    It does stop for a fraction of a second when the ball is pitched, though. Then, it continues to be constantly on.

    #11 1 year ago

    I assume you have checked and cleaned the contacts from post 3. See if you can also find the bat release relay and check and clean contacts.

    #12 1 year ago

    Yes, checked and cleaned all contacts. What I noticed is that when the armature is all the way up it is engaged and turns the gears. But, when it is down it still turns the gears. The armature goes up and down in a cycle as it is forever spinning. Are the gears supposed to disengage in the downward position when the playfield is in horizontal (play) mode? Mine moves the top plate that triggers the contacts regardless if it is in the down or up position.

    #13 1 year ago

    It sounds then as though you have a closed switch within the bat circuit that is causing the continuous operation.

    #14 1 year ago

    williams Base Hit pin ball got it in ,when I bought the game the owner said he was playing the game and the bat just quit working..He tried unsuccesfuly to fix..Any suggestions.Thanks Smitty 1963

    #15 1 year ago

    How would I know the model number of the machine. There are different versions of this game and I wanted to find you which I had. The versions are Williams #302 (3/25/65), #326 (engineering update 8/16/65), #327 (novelty), 4/65. Where would I find this information on mine to see which version I have. I understand there is a "relay" that is part of one version but I don't know where it would be located, or which version number I have. Is it stamped somewhere in the cabinet?

    #16 1 year ago

    There is no indication on my Double Play of the model. However as best as I can recall at some point I was advised that the model 326 included a 'double play relay' (see pic) so I have always assumed mine was a model 326 but I cannot be absolutely sure.

    DPplay03 (resized).jpg

    #17 1 year ago
    Quoted from wayner:

    There is no indication on my Double Play of the model. However as best as I can recall at some point I was advised that the model 326 included a 'double play relay' (see pic) so I have always assumed mine was a model 326 but I cannot be absolutely sure.
    [quoted image]

    Apology’s if I misunderstand but the model # is on most labels on each game. Look at your picture it has a 326 prefix on the relay label.

    #18 1 year ago
    Quoted from SteveinTexas:

    Apology’s if I misunderstand but the model # is on most labels on each game. Look at your picture it has a 326 prefix on the relay label.

    Wow Steve I feel an absolute dimwit. Not since I forgot where reverse was on the old VW beetle have I had such a catastrophic thought failure. Thks for the clarification.

    1 week later
    #19 1 year ago

    Looks like its going to be the motor and/or armature that is worn out. In order to stop the motor from constant spinning is to remove the center brass grommet and manually stop it by tapping the armature and then it stops. You can then play the next pitch, bat, and score or out and repeat the process of manually stopping the motor by tapping the shaft where the fan normally is installed. I had to remove the fan or else it would not be possible. Sometimes when its cold it will work by itself for a game or two and then it will have to be reset manually. Anybody have any these parts or know where I could find them?

    1 year later
    #20 4 months ago

    Were you able to get it fixed? I had pretty much the same problem with one I’m working on and figured it out.In my case the switch on the bat unit that makes the motor run was too closely adjusted and with the old loose worn out parts,the motor would run an extra fraction of a rotation causing the switch to close again.I’ve had this happen with some old pinball score motors as well,when the get old and loose,sometimes the motor doesn’t stop immediately and then it keeps rotating after it closes the run switch again.


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