(Topic ID: 76960)

Stepper motor help, please.

By Mk1Mod0

7 years ago

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  • 7 posts
  • 4 Pinsiders participating
  • Latest reply 7 years ago by Mk1Mod0
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#1 7 years ago

OK, gurus. Got what I hope to be an easy one for you. I have disassembled, cleaned, and reassembled the following item. When I got the machine, the springs were disconnected and I have tried 20 ways to Sunday to get it to work. No joy. It's from a '77 Sonic so should be identical to typical Williams player steppers of the era. ANY help will be appreciated in getting the springs in the right place and any advice on adjusting it to work best. Thanks!

IMG_6142.JPG IMG_6146.JPG
#2 7 years ago

use this as an example its from Pinwiki.com. Its from a 73 williams player unit

It looks like the arm is on the wrong side of the metal tab

This pic also shows the correct position of the two missing springs



also here is the whole gallery for that rebuild


#3 7 years ago

Ah! Just what the doctor ordered. Thanks!

#4 7 years ago

Looks like PB Resource has a spring kit if needed....also a pretty good placement diagram if you click on the picture/part.


#5 7 years ago

Well crap on crisco! I'm missing a spring. That makes a lot of sense. Knew something has to hold the pawl end down! Thanks more!

#6 7 years ago

I think this is the one you need and pic shows where they go
I got 2 of these and worked great for my space mission

good luck

#7 7 years ago

Agreed. Problem is, there is no place to secure the bottom of the smallest spring. Don't know if mine doesn't need it or I am missing something else. It seems to be working now, after a little more cleaning and adjusting. We'll see what it does once I reassemble. Thanks!

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