(Topic ID: 280695)

Missing teeth on small stepper

By Silverstreak02

1 year ago


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  • 11 posts
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  • Latest reply 1 year ago by Silverstreak02
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#1 1 year ago

I decided to start cleaning a few of the stepper units on my Around the World pin. The metal is very oxidized and of course it is sluggish to the point of saying it doesn’t move. Normally not a problem. As I was taking it apart I noticed the gear for the mechanism is missing a tooth. I believe there should be one there, but it is completely gone. Is it possible this is the way it’s supposed to be or am I looking at a part order.

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#2 1 year ago

The same stepper unit has some pretty deep grooves in the contacts. Is this still serviceable?

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#3 1 year ago

I would suspect the "missing tooth" is factory. what type of stepper unit is it ? "increment/decrement" like a bonus unit -or- "full reset" like a player-up unit?

Yeah those rivets look pretty worn , myself I would probably try to fill them with solder but apparently they can be replaced https://pinside.com/pinball/forum/topic/gottlieb-stepper-switch-rivet-tool-help-pls

#4 1 year ago

It’s call a ball played unit. Not sure of the terminology but I’d say it is a full reset type.

#5 1 year ago

That is factory.

The ball in play unit is a step up/reset unit.

That is on the edge on the rivets. You could try flowing solder into the grooves and smoothing it out.

#6 1 year ago

Silver solder is harder and will likely hold up a little better in rivet repairs.

https://pinside.com/pinball/forum/topic/hearts-and-spades-always-a-ball-short#post-4519175

/Mark

#7 1 year ago

Yes factory.

Rivets need fixing for sure so options are:

1. Flow solder, silver is harder agree. Then use dremel wirebrush to smooth.

2. Next-level: replace rivets with new ones from PBR but you’ll need a special (expensive) tool for this (or some do manually with cheaper methods). Lots of threads on pinside on this - best to use google.

3. Next-level: replace disc (sometimes Steve at PBR has them in stock - just ask)

#8 1 year ago

You might want to check the end float on your toothed wheel. I recently had to rebuild those rivets because the spring-loaded snowshoes that ride over them were scoring the disc itself too because there was no end float. So I set it so there was just little end float so in turn, the snowshoes were not scraping as much so as to give more wear in future.

#9 1 year ago
Quoted from spinal:

Yes factory.
Rivets need fixing for sure so options are:
1. Flow solder, silver is harder agree. Then use dremel wirebrush to smooth.
2. Next-level: replace rivets with new ones from PBR but you’ll need a special (expensive) tool for this (or some do manually with cheaper methods). Lots of threads on pinside on this - best to use google.
3. Next-level: replace disc (sometimes Steve at PBR has them in stock - just ask)

Well, you don't really need an expensive special tool to do it, just a press will do it. But it's not an easy job. You have to desolder the entire disk and then hope that you get the right rivets. I tried this on a Gigi, ordering the rivets from PBR. MikeO on here has the press and was going to do the work, only the rivets ended up being the wrong rivets. In the end, we ended up flowing solder into the grooves and smoothing it out. The game is yet to be finished but it's far enough along that I've been able to test it and it works fine.

#10 1 year ago

Thanks for all the responses. It’s good news on the gear. I’m not sure where I was going to get a new one. The rivets sound like a problem. I’m not sure about replacing the rivets so I’ll try to fix them. Is there a post or video showing how to fix them with solder?

#11 1 year ago

I called Steve Young yesterday to order new springs and a coil for the stepper. While on the phone he checked to see if he had a new disc. He didn’t but offered a cheap and easy solution for the rivets. He suggested bending the contacts slightly so they ride in a different place on the rivet. He also said the solder solution wouldn’t last very long.

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