Pop Bumber Sticking

Walkamo

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Hi Everyone,

I am currently restoring a Williams Toledo Pinball Machine.. This is a EM machine and the only problem left is that the upper left pop bumper stick down sometimes. I assumed it was a bad coil and got a replacement... I installed the new coil and the same thing happens.. I can't see anything physical that would cause the sticking....

I cleaned all of the leaf spring contacts with no luck...

Any help would be appreciated..

Thanks,

Chris
 
When the coil is staying down, is it powered, or is it just stuck until you bang the playfield or lift it back up manually? if so, then check your pop-bumper switch. It might be too close together and is making the pop bumper stay on.

When you replaced the coil, did you replace the coil sleeve or plunger/link assembly? Sometimes the sleeve end that goes through the coil stop gets a groove in it, or the plunger link does, and it sticks together when it fires in.

Also, I've seen a stickiness between the pop bumper skirt and the playfield cause it to stick down.

And if one or both of the nuts that hold the plate underneath that contacts the switch to the pop bumper above is missing, it will cause that plate to drop down and trigger the switch...
 
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Thanks for the info.. I will take it apart and clean it tomorrow.... Everything else is working now...

Chris

When the coil is staying down, is it powered, or is it just stuck until you bang the playfield or lift it back up manually? if so, then check your pop-bumper switch. It might be too close together and is making the pop bumper stay on.

When you replaced the coil, did you replace the coil sleeve or plunger/link assembly? Sometimes the sleeve end that goes through the coil stop gets a groove in it, or the plunger link does, and it sticks together when it fires in.

Also, I've seen a stickiness between the pop bumper skirt and the playfield cause it to stick down.

And if one or both of the nuts that hold the plate underneath that contacts the switch to the pop bumper above is missing, it will cause that plate to drop down and trigger the switch...
 
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