I just upgraded from a 4224 to an American Beauty this summer. I wish I had done it a long time ago.
My 4224 had a lot of different problems. The biggest issue was the motor. I was new and had nothing to compare it to, so after struggling with it (stalling, bogging down) for years. Sometimes it wouldn't reset and I call Powermatic and they suggested it was poor technique, overly aggressive cuts, wrong belt position, poor tools or sharpening, etc. It was never their product, it was somehow my fault. I finally learned those times were usually the poor design for the switches and accumulated dust inside would disable one of them.
I attended my first symposium in St Paul and was shocked to see the deep cuts demonstrators were taking. It was clear there was something off. The lack of power was still an issue and now their technicians suggested things like checking that I had the proper breaker and wiring and voltage, (I did) checking all connections on the VFD, motor, and plug, (I did) then replacing all the wiring between plug, motor, and VFD. (which I also did) They claimed they had a bad batch of wiring that had caused some issues for others.
The same issues continued until one day, the spindle stopped, but I could still hear the motor running. The pulley was off the motor and I though maybe a set screw had come out. After raking thru the dust and shavings inside and under the lathe, I realized the motor shaft had just sheared off. I was out of warranty and they wanted just over $1000 for a new motor and pulley. I bought a used metal lathe and made a hub/adapter to put the pulley back on the stub instead.
Along the way, there were other issues. Bearings got noisy so I found the size and ordered a set of better quality. The speed control rheostat failed, the reverse switch failed. One of the feet bent and broke, so I made new ones. Adding a shelf and weight helped keep it from dancing around. At some point, the frustration hit a breaking point. I removed the motor and took it to a local motor shop. The guy laughed when I said it was 3hp. He said there was no way a 6 amp motor would make 3hp. He told me to pull out the VFD and check the label. Sure enough 2hp maximum output.
I bought a 3hp Baldor motor on eBay and modified the mounting for it. I bought a cheap 3hp VFD on Amazon and it was a transformed machine. Replacing the cheap plastic switches with simple light switches has cured the occasional dust shutdown issue.
If I were keeping it, I'd probably look into having the ways ground flat and upgrading the banjo (One-Way or Robust) As it turned out the used American Beauty deal just 4 hours away was too tempting.
My old Problematic is loaded on my truck to deliver tomorrow; a donation to a local charity that has set up a woodworking shop in town. I wouldn't buy a Powermatic anything. They treated me like shit and NEVER admitted to anything or made any adjustment for an undersized motor and a defective shaft in the motor. (it never should have broken off ever) Maybe their products are better now, but I would guess there's not the quality control that this kind of investment deserves. Yea, I got a lemon, a giant ugly mustard yellow lemon and I'm telling anyone who will listen DON"T BUY A PROBLEMATIC.
A Robust is made here in the US, by people who take pride in their work. It shows. It's a work of art with perfect welds and finish. Stainless steel ways. A banjo that doesn't arm wrestle with me is a joy to use.
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