Forget the cap - that isn't your issue.

Your pictures show the switch leaf hard against the rubber. It should be about 1/4" away from the rubber AT LEAST - probably more.

Then, adjust the switch accordingly.

When the leaf is against the rubber, as in your picture, the switch never gets a chance to rest because the rubber is "springy" and so it will continue to trigger. When the ball belts the rubber you would be surprised how far the rubber deflects.

Guys check my earlier post. This is not rocket science.

We test this all the time in the factory. Move the switches away from the rubber by a good margin.

Go and have a look at any brand new (never played) machine if you doubt me.

Thanks for your input. It has confirmed to me that I need to include the exact way of adjusting these switches on a Homepin machine. Ours certainly do not touch the rubber, not by a long shot (pun intended LOL).

Could be different for older machines, I don't remember. Fact is, it is 95% likely that switch adjustment of some sort is most likely the issue here. You could be spot on about the helper plate - many don't realise what it is for or understand how to bend it. More fodder for our manual, again thankyou.

Here is the spacing and distances we use. Yours may well be different but but this works for us.

Note that the rubber ring does NOT rest on the switches.

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