(Topic ID: 138959)

Tron - right flipper sticks


By fisherdaman

4 years ago



Topic Stats

  • 13 posts
  • 8 Pinsiders participating
  • Latest reply 4 years ago by Crash
  • No one calls this topic a favorite

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#1 4 years ago

Recently purchased a Tron pro. I've noticed that after a few games the right flipper begins to stick up during game play. It goes down after the game ends or if you engage the opposite (left) flipper. I'm just wondering what I should be checking before I just randomly buy parts. Thanks.

#2 4 years ago

Pull the coil stop off. Has it's parts loosened. Feel the plunger end, sharp edge or mushroomed ?

Probably time for a new part or two.

LTG : )™

#4 4 years ago

Rebuild time!

#5 4 years ago
Quoted from LTG:

Pull the coil stop off. Has it's parts loosened. Feel the plunger end, sharp edge or mushroomed ?
Probably time for a new part or two.
LTG : )™

I get to disagree with Lloyd The Great? Uh oh...

Because he said it goes down at the end of game, it sounded electrical to me. Like the cab switch.

OP, when it happens, shut off the game. If the flipper goes down, it is electrical. If it stays up, it is mechanical (parts time).

#6 4 years ago
Quoted from DaveH:

it sounded electrical to me.

Quoted from fisherdaman:

or if you engage the opposite (left) flipper.

LTG : )™
Disclaimer : Vibration doesn't knock down electrical sticking.

#7 4 years ago
Quoted from fisherdaman:

It goes down after the game ends or

Most likely Lloyd is right... But I'll still keep my guess on electrical for now.

Disclaimer: Lloyd knows more about pinball than I do.

#8 4 years ago

my spiderman was doing that also, i took the coil stops off and filed them smooth and no more sticking. i also had speaker buzz when holding the flipper button in and that went away also.

#9 4 years ago
Quoted from LTG:

LTG : )™
Disclaimer : Vibration doesn't knock down electrical sticking.

No, but it is often a sign of a magnetized plunger.

#10 4 years ago

I'm going to take it apart tonight and order parts ASAP. Thanks for the help so far.

1 month later
#11 4 years ago

So I finally had some time yesterday to pull the coil out and look at the coil stops. The coil sleeve was grimy. So I cleaned the sleeve and fired the game back up. I've played multiple games on it and it seems to have done the trick as the flipper doesn't stick anymore.
The new issue I now face is the right flipper makes a loud humming sound when its engaged. The left side doesn't do it, only the right side. This wasn't an issue before I cleaned out the sleeve, so I'm puzzled. I was planning on buying a rebuild kit but now I'm curious what could have caused the loud sound.

Any input is greatly appreciated.

#12 4 years ago

I've checked the EOS in test mode and thats working just fine. any ideas?

#13 4 years ago

The coil stop is probably worn and is allowing play in the plunger, causing it to rattle. Touch the plunger while the flipper is engaged (playfield in service position for your safety) and see if it stops. Stern uses an annoying type of power modulation to drive the flipper coils.

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