Electromechanicals with aluminum sleeves

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I seem to be finding more and more of these. They either have aluminum sleeves or a brass type sleeve. I just clean them real good, but was wondering if it is just better to replace them with the standard nylon type. I do however realize, if it ain't broke don't fix it......

Let me know your thoughts!
 
I seem to be finding more and more of these. They either have aluminum sleeves or a brass type sleeve. I just clean them real good, but was wondering if it is just better to replace them with the standard nylon type. I do however realize, if it ain't broke don't fix it......

Let me know your thoughts!
What exactly are you talking about and i'll try and help?
 
I seem to be finding more and more of these. They either have aluminum sleeves or a brass type sleeve. I just clean them real good, but was wondering if it is just better to replace them with the standard nylon type. I do however realize, if it ain't broke don't fix it......

Let me know your thoughts!

Wow!, I must have been asleep at the wheel. I am refering to the coils in the various electromechanical pins and such. Sorry about that.
 
It's generally a good idea to replace them if you can (IE it's a standard size) - as they wear, you end up with metal dust/shavings inside the cabinet - which of course is conductive, not to mention messy and a pain to clean up.

If they look to be in great shape, and it's a home use machine, probably not a huge deal (I've left some in as well in the past myself), but generally a good idea to get them out as noted.
 
Yes, the aluminum and the brass sleeves as they wear shed a fine metal "dust" which is conductive. Usually the dust likes to fall across relay contacts and short things out.

If you have a machine with metal coil sleeves, replace them with modern nylon sleeves of the correct style/length.
 
I'd replace them. My experience in commercial use is the metal ones wear to one side and eventually the plunger shorts the coil.

I've never lost a coil to wear with a nylon coil sleeve.

LTG :)
 
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