Weak hold coil on 1981 Bally Linear Flippers

[DRD]

I rebuilt the flippers on my Fathom. In league play it was noticed that the one of the flippers would occasionally "Reflip" when held in the up position. If the flipper was held up, and a ball bounced on it at speed it would slightly lower the flipper causing it to re flip.

A suggestion was made that the EOS might have too small a gap. I checked this but the fault lies elsewhere.

I checked all three flippers and two have weak hold coils - lower left and upper right. You can push the flipper down with your hand with modest effort. The lower right holds so strongly I could not push it down without risking snapping the flipper bat

All the flippers have new parts. I either cleaned up or replaced the eos. The return springs are fine, they are not super tight or anything like that. The coils match those specified in the manual. They are all receiving 44.1v

Any ideas please ??

Thanks

 

[JWG9999]

My best guess is a poor connection somewhere - I'm no electrician but I'd suggest you might be getting 44.1v but that doesn't mean the flippers can draw enough power, i.e. amps.

There again, if what I've just said is laughable I refer you to the statement above.

 

[backbox]

Maybe they're meant to be like that and the lower right has the problem of not recognising EOS and stays in high power.

 

[carl lawrence]

when you said you checked the gap on the EOS , did you put a much bigger gap on them ?

 

[DRD]

Hi. I widened the eos gap, but it made no difference.

I will just buy a new coil and try that. I know I could borrow one from vector, but I would rather avoid taking working games to bits to diagnose sick ones

 

[carl lawrence]

before buying new ones , how about swopping the lower coils over ?

to see if the fault moves ?

 

[DRD]

Good idea. Will give it a razz