madman
Well-known member
(If I made a thread for this machine before, I couldn't find it.)
Got it from an estate sale, marked $50, paid $5, elderly owned, dings and scratches, bag was full, etc, etc.
I completed a mechanical restoration. The back motor bearing was dry and making noise. I replaced both. However, the back bearing is an open roller bearing, which is kind of dumb because this is a machine handling dust - which would easily contaminate the bearing grease? I dunno, that seems like planned obsolescence to me. I replaced it with a SEALED roller bearing JTT-67. It's a bit longer, 7/16" as opposed to the original 3/8". Only a 1/16th bigger. I has careful to make certain the bearing seals would land on a usable part of the motor shaft, since the shaft gets smaller near the bearing. Also, the bearing is pressed into a bakelite housing, and rather fortunately for me, the shoulder meant to hold the bearing in was already broken off. Thus I was able to press in the new, longer bearing past where the old one was supposed to stop. I coated it in threadlock before installing, so it should stay put, and because it has seals, it should stay lubricated!
Has anyone else made this mod?
Also, I wanted to go ahead and replace the brush roll bearings and the two transmission bearings that are the same part as the brushroll bearings. Here's the problem. These bearings were rough and noisy. Well, so are the new ones. You can feel the roughness when you turn them in your hands, I thought maybe - just maybe - they had to be broken in but it doesn't seem like the case. As a result, the vacuum is still very noisy. It sounds like it has bad brushroll bearings. I wonder why lol.
Has this been an issue for anyone else? Is there a better replacement bearing for it?
I also thoroughly went through the transmission. It did not have much power drive effort in the forward 'gear' but had enough in reverse. I basically found that the clutch and disc had too much air gap for the forward 'gear.' While I was in the transmission, I added washers as spacer shims to take up the slack. And it has mostly worked well. I think it could to with a hair more, but the washers would have to be pretty thin. I might use paper or card stock, but really, I think it's good enough so I probably won't take it apart again any time soon.
https://www.amazon.com/gp/product/B007EDO9DA/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1


Got it from an estate sale, marked $50, paid $5, elderly owned, dings and scratches, bag was full, etc, etc.
I completed a mechanical restoration. The back motor bearing was dry and making noise. I replaced both. However, the back bearing is an open roller bearing, which is kind of dumb because this is a machine handling dust - which would easily contaminate the bearing grease? I dunno, that seems like planned obsolescence to me. I replaced it with a SEALED roller bearing JTT-67. It's a bit longer, 7/16" as opposed to the original 3/8". Only a 1/16th bigger. I has careful to make certain the bearing seals would land on a usable part of the motor shaft, since the shaft gets smaller near the bearing. Also, the bearing is pressed into a bakelite housing, and rather fortunately for me, the shoulder meant to hold the bearing in was already broken off. Thus I was able to press in the new, longer bearing past where the old one was supposed to stop. I coated it in threadlock before installing, so it should stay put, and because it has seals, it should stay lubricated!
Has anyone else made this mod?
Also, I wanted to go ahead and replace the brush roll bearings and the two transmission bearings that are the same part as the brushroll bearings. Here's the problem. These bearings were rough and noisy. Well, so are the new ones. You can feel the roughness when you turn them in your hands, I thought maybe - just maybe - they had to be broken in but it doesn't seem like the case. As a result, the vacuum is still very noisy. It sounds like it has bad brushroll bearings. I wonder why lol.
Has this been an issue for anyone else? Is there a better replacement bearing for it?
I also thoroughly went through the transmission. It did not have much power drive effort in the forward 'gear' but had enough in reverse. I basically found that the clutch and disc had too much air gap for the forward 'gear.' While I was in the transmission, I added washers as spacer shims to take up the slack. And it has mostly worked well. I think it could to with a hair more, but the washers would have to be pretty thin. I might use paper or card stock, but really, I think it's good enough so I probably won't take it apart again any time soon.
https://www.amazon.com/gp/product/B007EDO9DA/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1


As an Amazon Associate we earn from qualifying purchases.