AUEngineer
Model 4390-3

Based on the attached image, do I need to install the spacing washers that come with the replacement brushes?

Planning to use the end of a paint stir stick and scotch bright pad to polish the slip rings while I have apart.

Thank you!

[ATTACH]1842[/ATTACH]


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CARRIER 15kW Model ASPAX1CCA015 on NG (re-stickered Generac 4390-3)
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Peddler
No, I think you’re ok, you could though, it is marginal


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Birken Vogt
I'd install spacers. No guarantee the new brushes are made exactly the same to land in exactly the same spot. Better to be as centered as you can be.
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78buckshot
My vote is to add the shims.
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cookelec
I would add the shims
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