Perhaps this unit had it's motor replaced or possibly a early revision.
Eithier way if this is an model AX, it is indeed a older one.
Brushless motors do exist, but...Model L wrote: ↑Sat Oct 13, 2018 6:19 amwell, even a clean brushed motor will spark slightly as the brushes are always being worn down. thats why vacuums have hepa filters. in addition to filtering out the fine dust, it has to filter out the carbon particles.
on a side note, 3 phase motors are all explosion proof.
(Brushless) (BLDC/BLAC)
IIRC Noie owns an RX, so he should bring up if that's true, but Federal made the Model PL/PD that had an elongated intake to fit a flapper mechanism used on the Pulsator series. There was also the JC that was (supposedly) a Model A/J inside a large conical housing with an extra electric input for a damper; there was a short video of one on YouTube, but it must have been taken downDarley Champion wrote: ↑Wed Oct 10, 2018 6:31 pmMust've been because of debris that would get inside the rotor, scraping against and possibly creating sparks.. Just a shot in the dark as I have no idea if the Model RX (rumor has it, the RX was a coded L not a explosion-proof one) was just a coded L or not.
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