Time for New Vacuum Cleaner ?

"hr(bob) snipped-for-privacy@att.net" wrote in news:e063d8ec-b34c- snipped-for-privacy@c3g2000yqd.googlegroups.com:

I got the fan cover off, but the nut holding the fan to the shaft[?] won't release.

Even when I hold the shaft with a pair of vice grips, the nut turns but seems to be on some kind of press fitted device rather than threaded directly onto the shaft.

I did manage to cut myself, a bit, on the edge of the fan. :(

Even when I got tired of using the wrench and put my motorized screw driver/drill onto it, it just keeps spinning but not unscrewing. I think I may go with a new motor. :)

bz wrote in news:Xns9CCF759169BE1WQAHBGMXSZHVspammote@130.39.198.139:

By now I realize that I was turning the reverse threaded shaft nut the wrong way, stripped it out and ... I was right, I do need to go with a new motor. :)

I suspect that the two "2 springloaded opposing metal posts" are the brush holders that supply power to the comutator.

Photographs would help identify the various bits.

OK. Here is a test of sending up a pic of the removed shaft.

Yes the groove that you see near the commontator assembly is the remains of a formerly supporting ball bearing unit. Probably the bearings were ground up by friction because of lubricant retainer failure (the washer that you found near the nut) and ingested into the dust bag.

Looking at the housing past the brush assemblies you will find that the outer race is still embeded in the outer housing. It's the brass coluored ring in the end of the assembly there in the picture is the outer bearing race what is eft of it.

Since these bearings are usually pressed on the motor shafts it will probably be a hard thing to fix but you likely can find a sealed bearing that would do the job at most industrial or automotive bearing supply houses It should be exactly same dimensions as the other one.

Gnack Nol,

Thanks. Do you think I'll have to pay someone to press a new bearing unit on ? Need special tools? The brass colored race looks like it is part of something which is riveted onto the housing with 3 rivets. I would guess it would have to be "unriveted" somehow. Geez.

Gnack Nol,

Thanks. Do you think I'll have to pay someone to press a new bearing unit on ? Need special tools?

It would likely take a bearing press to remove the old damaged race and install a new one. You would probably do best to locate a starter and alternator repair shop and ask them they might even have a source for the bearing.

It looks like the old race (the brass component) should come out through the area where the brushes are into the motor windings not the other way. And is just lightly fitted into the housing. The rivets are likely part of the end retainer retainer cup and do not have to be removed since it comes out into the winding core.

Look at it carefully and it should be the same size as the complete bearing's outside race is.

Just my guess.

Gnack

Vacillator Inscribed thus:

Nice photos ! The bearing inner race is still attached to the commutator end of shaft behind the nut. The bearing outer race is fastened between the riveted plates just visible in the second pic.

You will have to drill out the rivets to remove the outer race. Then you will have to either replace the rivets with new ones, or use blind bolts and nuts. Its likely that these will only be available as part of a repair kit which will also include the bearing and probably a new pair of brushes.

Note the inner race should pull off the shaft without too much difficulty. A little heat will help. Sometimes a dab of superglue is used to prevent disassembly.

Gnack Nol Inscribed thus:

Note: The bearing that has failed has to be re-fitted into the housing first ! The shaft is inserted after the brushes have been lifted out of the way. It is a push fit into the bearing.

I took it to a repair shop. The repairman said it would be cheaper and better for me to buy a used motor from him. It was only $15 so I said OK. I still have the original motor for spare parts. Thanks for all the info, to all those who assisted me. BTW, I installed the used motor, and the vacuum is running fine again. Thanks.