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I personally believe the 5xx series should be considered two separate generations - Model C/505-515 (as Gen 1) 516-D80 (as Gen 2), considering the motor shell is significantly different between the 505-515 and 516-D80, as the 505-515's motor shell doubles as the outer shell, while the 515-D80...

Rebuilding a recently acquired 3CB and the old front bearing was a bear to remove. For a while, I thought that it was glued in, but the gluelike crud around the bearing was hardened grease, which I scraped away. The replacement is seemingly impossible to get into the recess. I've tried tapping...

Was disassembling newly-acquired Classic III for cleaning, sanitizing and rebuilding. Stripped one of the three screws on the discharge side of the fancase. I had two options...try to find my screw extractor set, or this: Since all the other screws were removed, the halves of the fan case...

So far I have cleaned three field/armature sets with Tide, obviously with the bearings off as I replace them anyway. In a 5 gallon bucket of very hot water, I add about a teaspoon of Tide. While tide isnt as harsh as a typical solvent based cleaner, I don't go overboard keeping in mind the...

As I was removing the field from the chassis, the baffle was heavily deteriorated and came out in pieces. 5xx baffles don't come up on a search. Do I need this or can I get by without it?

I'm halfway through with the restoration of a 514. The original metal fan has a chip in one of the blades, so I'm going to see if a machine shop can shave away the rest of the blades to make it more balanced because I'd hate to lose a six blade fan. In the meantime, I have an 119078A Amodel fan...

Got a brand new 103960 coil for cheap, bought on impulse since its price was very low compared to the average going prices for Kirby coils. I know it's a one-speed coil (so pre-Dual Sanitronic) but which models/armature #'s/amperages are compatible with this coil? Upon quick googling, some...

I acquired a Model 300 Hoover about a month ago and have questions. Motor - it appears to have sleeve bearings at the top and bottom of the motor. I've always heard about greasing classic Hoover bearings (but then I always thought that sleeve bearings took oil). What's the right lubrication for...

I had intentions to build a Hentria (Heritage bag Sentria) with a 10-blade metal fan but the Sentria is sitting in a tote, in my garage, still waiting to be built and polished. However, I came across a Model 514 with a six-blade metal fan. The six blade has a chip on one of the outer edges of...

Got around to tearing into it last night to clean it and assess its condition, but I have some questions. 1. Armature - I vaguely remember reading about 4A Kirby motors and the motors basically being the same from the late 513 to the S7. However, my armature resembles a 3A one, based on the...

I came across a 2090A ESP in wonderful condition, except for the motor, of which the bearings were pretty shot. I know that there is a two-speed Sanitaire upright (SC889), but for the life of me, cannot find a detailed wiring diagram for this machine. I'm only able to find exploded parts...

Have a sentria that has been sitting in my garage. Had the intention of turning it into a Hentria (Heritage bag w/ a metal fan) but was busy & preoccupied with other things. I know something has to be done with the front bearing plate to get a 500/Classic-series fan to work in a G-Series, but...

I knew the original motor was toast based on the grinding sound and extreme difficulty in spinning the fan (bearings were shot beyond repair, and Eureka/Sanitaire bearings aren't the easiest to service), however, the bag, base, hood and handle were in excellent condition and I knew that 2spd...

I have a 1CR that's in pitiful condition sitting in my garage, waiting to roam the carpet once again. I've been too busy to pay any attention to it. Pretty much, I've only sanded out the scratches and cleaned out the motor. Put new bearings on but the cooling fan seems to come in contact with...

If you pull on the shaft the cooling fan behind the bearing plate touches the bearing plate. Bearings are new. What gives?

I've had my 1CR apart and in pieces in preparation for reassembly for a while now. Not sure if I lost anything, something is telling me there's spacers between the rear of the coil and the motor shell where the field coil screws thread through, but I'm not positive. Does the field coil have...

I recently acquired a 1CR and had done my usual disassembly and cleaning. When reassembling the machine, one of the screws that holds the rear axle to the motor shell sheared off, almost flush with the hole. Common sense says to use an extractor but this is a real small screw and I've already...

I found a Sentria I in the dumpster area of an apartment complex I was working in, installing mini splits. The brushroll is shot, the bag is worn but the base machine is fine. I seen a video a while ago on YouTube of a modified Sentria I with a Heritage I orange bag and a metal fan. I was...

Is it Sanitaire? Windsor? Oreck? Nope -- it has to be the Walmart special Bissell PowerForce Helix. I recently stayed in six different mid-range hotels (Days Inn, Quality Inn, AmericInn, etc) while on a trip. Five used the Helix. One used a Shark Navigator. In fact, at one hotel (AmericInn) I...

My newly acquired Royal 6103b from the mortuary is finished after a teardown, cleaning and polish, but the handle tube is not staying in the clamp/fork attached to the motor, no matter how tight the wing nut is. So, whenever I pull back, the handle pulls out of the clamp and I'm unable to...