Eureka motor bearing repair

[durango159]

I have acquired a Eureka 1784B RotoMatic style power team canister. It works good but I want it to keep working well and possibly make it better. I want to oil the suction motor bearings, but couldn't figure out how to do that.

I got to the suction motor, I got the motor brushes disconnected and took out the two long screws which hold the armature and the main motor together. Normally taking those screws out I can hold the armature with fan encasement together in my hand, turn it, grease the bearings and put a vacuum to the fan, letting the whole thing spin and really clean it out. However the motor isn't separating.

Anyone else have experience with this. I should not have to do anything to the machined fan chamber. I've been able to oil bearnings in other machines taking out the bolts and hitting it where the armature and fan chamber meet.

Seeking advice thanks very much!!

 

[kirbykid63]

Lamb motor

Did you remove the bolt that holds the fans on?,I always remove the top fan housing and remove the fans and wash them,I think removing the bolt will solve this problem.

Richard
new2you vacuums on eBay.

 

[vacu-finder]

"I've been able to oil bearnings in other machines"
You should never actually oil bearings as most are sealed, some have a rubber end cover which can be removed giving you access to the roller bearings and able to grease them. Oil will just disipate because of the motor high speed and cetrifugal forces.

 

[durango159]

Wow I didn't know that about bearings. I've tried injecting Redn Tacky grease into some with a syringe but think that oil gets in better. I yard saled a Hoover PowerMax Supreme canister. The power nozzle was so gunked, the motor was hard to turn. I vacuumed as much dust off as possible and hit with WD-40 to free it, then oiled an greased it. Sounds great now.

I've thought about going into the fan, I always hate to bang and pry to get the cover off though, cause of the way the fan is all factory sealed. The backing of some newer motors is plastic like on Hoover PowerMax suction motors and the plastic tends to chip a little taking off the fan cover. Is there a better way of getting to the fan without knicking up the outer cover? I didn't think I'd have to disturb the fan to get to the bearings. I did blow the whole motor out with an air compressor, as much as I could without dismantling since its not separating.

I also somehow screwed up one time. I got a used Hoover Spirit, double fan motor. It had great suction but I wanted to clean it. I disassembled both fans, cleaned everything. Followed an online schematic very carefully, and looking at another Spirit motor without dismantling it much and with my own notes to reassemble it. I tried this several times. Taking it apart and putting it back together. Not once could I get to function the way it should. Sometimes I would hear metal rubbing, other times, it would sound fine, the way a Hoover motor would but there would be no suction. I went to my local vacuum shop for advice and they told me they don't take fan housings apart. I was completely upset and ended up getting rid of the machine. I think the problem was the fans not being held together as tight as they would with machines on the assembly line?