I am surprised a company such as Flex does not include a spare set of brushes in the box.
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I am surprised a company such as Flex does not include a spare set of brushes in the box.
I Do think it would indeed be great if they did but I can see why they don’t. Check this thread out and do some math. The brushes do last.
Flex 3401 died :(
To the OP b4 mine died, the RPMs were varying as you are seeing. I also think these machines sitting and not being used is bad as internals can rust. Perhaps taking it apart and giving it a good spray/soaking with WD40 may help the issue and push any possible moisture/rust out.
Ok
Just replaced brushes with new ones. Old ones looked great. Still doing the same thing with the new brushes. I’d just like to try and troubleshoot so I can replace only the broken piece and not throw parts at it. Everything inside looks great from what I can see. Anyway to bypass the speed selector switch? Thanks
Pics attached
Might be a silly question, but since you say you bought it used, are you sure it is a genuine Flex tool and not a Chinese clone?
Yep
Just wanted to update the thread, replaced speed controller and it’s now working like it should .