Electro Hygiene motor help

[gj9696]

So I have this beat looking Royal Electro Hygiene model 890 that I got as a Christmas gift almost 5 months and have it used it yet because the motor sounds slow and no agitation. I finally got inside the motor after using force to remove the fan and this what it looks like. What would best recommend to clean out the entire motor and make the vacuum work properly? Thank you.

 

[gj9696]

Carbon brushes have seen better days.

 

[madman]

Brushes are fine, make sure they are not oily. Armature looks ok, maybe hit the commutator with a scotchbrite pad. The field looks crispy, but it's hard to tell from the photo. Other than that, make sure it's wired right, since somebody has clearly been in there before. And make sure the bearings are ok and well oiled.

 

[gj9696]

Madman, thanks! I've never try to fix up a royal motor before. One thing, which one is the commutator and the field that looks crispy? Lol, I meant to say neat not beat.

 

[kirbyclassiciii]

Gj9696

Gabriel,

Here is a Royal 880 disassembly video (by Hank's Garage) that could be of some use to you -- the 890 is the same machine.


The date stamp on the armature (1-801001-000) I see appears to say 11-68 (November 1968), making your machine a 1969 model.

~Ben

 

[gj9696]

Kirbyclassiciii, thank you!

 

[gj9696]

What's the best oil to use for Royal metal uprights? Thanks.

 

[kirbyclassiciii]

Gj9696

Gabriel,

You want to use SAE 30 motor oil.

~Ben

 

[gj9696]

Kirbyclassiciii, thank you.

 

[repairman]

Royal uprights will usually have a ball bearing toward the fan and a bronze bushing in the rear. If you're going to use oil on that bushing, USE A NON-DETERGENT OIL. Detergent will destroy that bushing. I use the blue bottle on 3-in-1 SAE 20 Oil. For the front bearing, use Mobil Polyrex EM grease. Also, when you oil that rear bushing, don't turn the machine on for at least a few hours. It will go all over the place and wreck the motor.

 

[gj9696]

Repairman, it can either one right?

 

[gj9696]

Repairman, I don't seem to find the Mobil Polyrex EM grease anywhere. Can it be another brand of grease? Thank you.

 

[repairman]

No

That is detergent oil. I said 3 in 1 SAE 20. You should be able to find the Mobil grease at your local auto parts store or Amazon. If you can't find that one specifically, look for a bearing GREASE meant for electric motors.

 

[bikerray]

repairman

The SuperTech Oil pictured is a NON-DETERGENT oil.
It is sold at Walmart.
It's for compressors and hydraulic systems.
It's mineral oil based and NOT for automotive use.

It even tells you on the label that it is NON-DETERGENT.

 

[madman]

The field coil is the large ring-shaped iron core with copper windings. The photo makes it look crispy. Maybe take another picture?

The commutator is the round brass part the carbon brushes ride on.

Any non-detergent 30w oil will do.

 

[repairman]

My bad

I didn't read the label. My apologies. If you buy the 3 in 1, you have the convenience of adding it in drops rather than having to buy a separate container to house the oil in.

 

[gj9696]

Repairman, hi I already got the correct 3 in 1 motor oil a couple days ago and put a couple of drops in the vacuum and let it sit overnight.

 

[stephanb9]

To clean it I would go to an automotive store and pick up some spray cans of electrical contact cleaner and use a plastic bristle brush to scrub with ive used this trick many times on alternators and starters and it seems to work like a charm.

 

[gj9696]

Well, I have another problem. Just as I was taking apart the motor again, I was stupid enough to grab the screw of the fan with a pair of plyers and messed up the threading and the fan is stuck. I used some B'laster spray and let it sit for a little while. Anyone had that kind of problem?