97widerider
Active member
Yes so let’s stay tuned...
Royal 882 - Need quick advice
- Thread starter 97widerider
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Hey
The drop in motors doesn't have chrome carbon brush caps. Our 4000 is a commercial drop in motor vacuum. The motor yo mine is original motor since date code matches model plate but a this line of vacuums are serviceable. I found my royal example of drop in motor 5.0 amp. The vacuum looks like the Duke model I believe. Anyways the pictures if you look will explain drop in motor.
The drop in motors doesn't have chrome carbon brush caps. Our 4000 is a commercial drop in motor vacuum. The motor yo mine is original motor since date code matches model plate but a this line of vacuums are serviceable. I found my royal example of drop in motor 5.0 amp. The vacuum looks like the Duke model I believe. Anyways the pictures if you look will explain drop in motor.
Royal "drop-in" motors are, indeed, self-contained units. When you purchase a drop in motor, it includes the commutator, stator, both bearings, cooling fan, carbon brush assemblies, and more all in one package. For a "drop-in" motor replacement, the old motor simply emerges from the rear housing (the housing that looks like a space alien helmet) whole and the new one slides in its place. Essentially re-attach the wires and the suction fan, and you're good to go!
Non-drop in motors are not like this. I've never taken apart one of this type, so I don't know the exact procedure, but it is my understanding that components such as the rear bearing, brush holders, and stator are each independently fastened to the rear housing.
You can tell these motor types apart by looking at the rear housing. "Drop-in" type Royals have no externally accessible carbon brushes and no oiling ports. In contrast, non "drop-in" motors do have these features. The "drop-in" motors have sealed, maintenance-free ball bearings supporting both ends of the armature, whereas the other kind of motor has a sealed, maintenance-free ball bearing supporting the fan side and a sintered sleeve bearing at the other. The sleeve bearing requires occasional oiling with a non-detergent oil and thus has an oiling port with a red cap.
If I recall correctly, some of the oldest Royal motors may even have sleeve bearings supporting both ends and therefore have two oiling ports: one at the rear and one under the handle bail.
Non-drop in motors are not like this. I've never taken apart one of this type, so I don't know the exact procedure, but it is my understanding that components such as the rear bearing, brush holders, and stator are each independently fastened to the rear housing.
You can tell these motor types apart by looking at the rear housing. "Drop-in" type Royals have no externally accessible carbon brushes and no oiling ports. In contrast, non "drop-in" motors do have these features. The "drop-in" motors have sealed, maintenance-free ball bearings supporting both ends of the armature, whereas the other kind of motor has a sealed, maintenance-free ball bearing supporting the fan side and a sintered sleeve bearing at the other. The sleeve bearing requires occasional oiling with a non-detergent oil and thus has an oiling port with a red cap.
If I recall correctly, some of the oldest Royal motors may even have sleeve bearings supporting both ends and therefore have two oiling ports: one at the rear and one under the handle bail.
kirbyklekter
Well-known member
Glad I "stayed tuned" this was a good thread
I'll be watching for your comparison between the 5.4amp motor and the 10.5amp motor in their cleaning ability. Thank you Les and broomvac for sharing your knowledge, as always, I learned a lot!
I'll be watching for your comparison between the 5.4amp motor and the 10.5amp motor in their cleaning ability. Thank you Les and broomvac for sharing your knowledge, as always, I learned a lot!
Lesinutah
Les,
They changed to the drop-in motor design in 1995. I know, I have a 1994 model 9100 Preferred Collection, and it has the access caps for the carbon brushes on the motor housing.
~Ben
Les,
They changed to the drop-in motor design in 1995. I know, I have a 1994 model 9100 Preferred Collection, and it has the access caps for the carbon brushes on the motor housing.
~Ben
i figured they did change it. I knew they had drop in motors in late 90's and im pretty sure the commercial line with 5.4 had drop in motor. The vacuum i have is only drop in motor with no carbon brush and no oil ports. I know that the model i have wasnt the norm. It may be now but no way its fully enclosed motor.
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