I am talking about how loctited in that grub screw is. What size allen is it even?
Then reassembly and covering the screw again or na? I simply am asking for the same guide as before but showing how to uncover the grub easiest. Any other tips related to the changes in the later revs.
I used my backup iron to melt through rather than hit it with generalized heat and risk damage elsewhere. Took a few minutes of digging, but got through to this:
I always wondered if the FS-BH motors had the possibility for mounting screws going too deep and shorting on the windings. I tried - it seems like the mounting holes aren’t fully threaded. The fasteners stop right at the edge.
The reason I tore this one apart is that I have had a high pitched ‘cricket chirp’ sound coming from this motor. I noticed the bell taps the stator at one point, just barely, in every revolution.
I confirmed this - there’s a very slight amount of wiggle to the axle. The bottom of the axle has a hole, which at first glance appears to be a hex head. I tried every allen key I have - metric and imperial - no dice. Upon closer inspection, it is not a hex. It’s a round hole with a lead-in chamfer. My guess is that it’s used to press-fit the axle in place during assembly.
So… now what?! I could try to press the axle out with a hydraulic press, but I’m not sure how I would even fix this. Or how I would line everything up correctly to epoxy it in place.
Orrr I can just take the bell to a belt sander and grind off 2mm and live with it… it works perfect otherwise.
Anyone want to throw an opinion in here? @Fosterqc you ever get around to swapping shafts?