Sanitaire S645: Old School But Not Exactly Old...

VacuumLand – Vintage & Modern Vacuum Enthusiasts

Help Support VacuumLand:

human

Well-known member
Joined
Jan 29, 2013
Messages
3,915
Location
Pines of Carolina
My name is Human and I'm a vacuholic...

I thought I had my addiction under control until I went out to run some errands this afternoon and stopped by a Goodwill store. They had about a half dozen modern, plasticrap vacs but one old school chrome metal handle was sticking up among them and caught my eye. When I pulled it out, I found the handle connected to a blue Sanitaire upright, model S645 made by Electrolx with an F&G bag setup. They had it priced at $15 and it had enough to likely put the average Goodwill shopper off of it, but an addict like me? No way. So while I did think about it for a few minutes, I realized I had pretty much all of the parts needed to fix it up so I shelled out $15 and brought it home and spent about an hour fixing most of its issues:

•Upper cord hook was broken off—I had a couple at home, albeit in white plastic for my red Sanitaire SC686, so no big deal.
•Spring that holds the bag assembly to the cord hook was all stretched out from being held in place with gaffer tape and twine—I harvested one from the dump bag I took off my SC686. Glad I didn't throw it away. I seriously considered putting the entire bag header from the dump bag on it but that would have required destroying the dowel that was sewn into the blue outer bag so I opted simply to replace the spring and keep it closer to original. But hey, the other is always an option at a later date.
•Had a big, flat, totally wrong belt on it—I have plenty of proper round belts on hand so again, no biggie.
•The cord is a little buggered up—I untangled it and put electrical tape on the bad spots for now. I've got a 30-footer on my eBay watch list for just under $14 including shipping.
•Headlight is burned out—First, I've got to figure out how to take the headlight lens off to get to the bulb—overall, it's a low priority item.
•I broke the bag tube spring, trying to take the full bag out—I've already got a couple on my eBay watch list or I may just try an old fashioned radiator hose clamp.

The bottom line is I totally didn't need it but now I've got it. The machine does run but I've not been able to take it for a proper test drive yet. Once I get a new bag securely into place, I'll see how it performs. In the meantime, it definitely needs a little more of a cleanup. The underside is absolutely caked with dirt and it smells faintly of dog. It's not bad but it is noticeable. The photo below is of the machine after I spent about an hour working on it after I got home. You can see the white cord hook and the taped spots on the cord. One thing's for sure, I will end up spending far less on this one than I did my SC686.

Now, if you'll excuse me, I need to find that vacuholics anonymous meeting and pick up another white chip.

human-2021011321175902031_1.jpg
 
Slight Update: I fixed the Bag Tube Spring...

So, I was looking at one of the eBay listings for a bag tube spring and I noticed the spring appeared to be fed onto itself to form a circle so I retrieved the one I thought I'd broken from the trash and put it back together in about a second. I don't know why I didn't think of that before. Somehow, I just assumed it was a continuous spring and I'd snapped it. I guess I was just waiting for something to go wrong. So now, the machine has a new F&G bag in it and is ready to run. Maybe tomorrow. I'm glad I was able to save myself $5 by not having to buy a spring. Once I give it a run and am satisfied with it, I'll make a decision about whether to replace the cord. Knowing my addict ways, the decision will most likely be yes.
 
Good advice...

Thanks for the information. I'll have to look into how to remove the top. I'm going to need to do that anyway to replace the cord. Might as well do both operations at the same time. I'm guessing there are screws on the underside or does it just pry off? It can't be terribly difficult. Sanitaires are designed kind of like military assault rifles—to be quickly field stripped, serviced, and put back into action. I tried gently prying the headlight lens off with a screwdriver but I stopped immediately when it didn't readily disengage. After the experience with the tube spring, I wasn't in the mood to unnecessarily break anything else.
 
Edgar I think the last one that I took the top off was held in with springs that come through, I just used needle nose to pull them loose and the top came off. of course that may not be with every model.
 
Two different designs...

Thanks David. It appears you are correct regarding metal-hooded machines but the plastic-hooded ones are different. I just watched a YouTube video of a plastic-hooded 'red line' Sanitaire being torn down and then examined my two Sanitaires to confirm the information. Apparently, the metal-hooded ones like my SC686 have the springs and the plastic-hooded ones like my S645 have screws in the same relative positions.

I'm not sure if it's variation between the 'red line' and 'blue line' machines or just something that changed over time as with Kirbys but the 'red line' machine in the video had Torx screws holding the hood in place while my 'blue line' machine has Phillips screws. Another interesting difference is my SC686 has a three-prong plug while the S645 has a two-prong plug. I was looking at a parts list for the S645 and it shows the cord as having a ground wire at the machine end although the plug has two prongs. Presumably, one of the power prongs is grounded inside the plug. I'm thinking I may take the hood off mine and see if there's a ground wire coming off the cord. If so, I may upgrade it to a three-wire cord with a three-prong plug as the cord I have on my eBay watch list right now is a two-wire cord with a two-prong plug.

In looking at the ratings sticker on the bottom of my S645, it was made in Mexico in 2012 and has a 7amp motor. Should be a brute once I get it all fixed up.
 
'Exploratory Surgery'

Okay, so I got the cover off of the blue Sanitaire and found the headlight bulb is well and truly dead. I also determined the cord is indeed a two-lead and not a three-lead. That means the inexpensive generic cord on my eBay watch list will work just fine. The only thing I'm slightly concerned about is getting the strain relief grommet out of the little L-shaped bracket into which it is inserted without tearing it up beyond the point of usability. Perhaps I should consider cutting the cord on either side of the grommet and then pulling the insides out first. I've got a little shopping to do and I'll be looking at spending an additional $20 on the machine but for a vacuum that retails for $200-300 new, that isn't too bad. The important thing is I have a game plan now.
 
Sounds good, I normally use needle nose pliers , not sure if that's normal. I'm sure replacement is available too. 👍👍 Good luck buddy.
 
Cut

On wire next to the grommets. Cut both sides slit to strip back the wire. This should free up the grommets. If not take out electrical wires from the grommet. This would leave pieces of original cord to cut off. .it can be done just a little patience.
I went to harbor freight and got their larger hose clamps for cheap. I use them to attach the bellows to the bag. The bailing wire isn't something I like.
 
Les, that's exactly the procedure I was envisioning. I figure once I've got the 'innards' out of whatever piece of cord is left going through the grommet, the outer insulation can be easily collapsed and removed, leaving an empty grommet that can be dislodged and placed on the new cord. I hadn't thought of slitting the outer insulation but that's a good idea.

I've ordered a new cord and a headlight bulb that will be here in a week or so. Part of me wants to go ahead and try this machine out, even with the damaged cord. I didn't see any exposed wires as I was untangling and taping it up the other day, just tears in the outer jacket, but I'm still a little leery of it. We'll see. Taking the cover off of that machine yesterday, it was refreshing to see an old school design in a modern machine. There were no circuit boards and I could trace out all the wires and understand absolutely everything I was seeing. For me, there is elegance in simplicity.
 
can u remove the fan chamber on the bottom too replace the fan, like on some red sanitaire's or do U have too take off the cover and and pull motor too replace the fan?
 
Good First Run...

The fan and motor assembly on my S645 must come out from above since the base is a single piece. Fortunately, that's a pretty easy operation. I'm considering stripping the machine down completely to wash the crud off of the underside of the base. It looks like it was used to vacuum a carpet that had just been shampooed but hadn't been allowed to thoroughly dry.

Because of the damaged cord, I was planning to wait until I had the new cord and could install it before giving this machine an inaugural test run but excitement got the better of me a little while ago. The cord was an ungodly mess when I got it and it took me about 15 minutes just to untangle it and tape up the spots where the outer jacket was torn. While I didn't observe any bare wires, I'll still feel better in the long run with a new cord in place.

The experience of vacuuming my bedroom, which has both 'realtor beige' carpet and a Persian rug, was good. The machine sucks dirt like a mutha and is also easy to handle, easier in fact than my other Sanitaire. It's not quite as effortless as a G-series Kirby with the Tech Drive engaged but it's not bad at all. It even has good manners about not grabbing shoelaces and charger cords. Best of all, it passes the Persian rug test, clearing cat hair in a single pass.

I don't know that it's destined to become a daily driver--not that I vacuum on anything remotely close to a daily basis--but it'll definitely be in the rotation for when the mood strikes.
 
So I had a strange development this afternoon. Shortly after I wrote the above post, I received an email saying the order for my cord had been canceled and I had received a refund but there was no explanation as to why. When I inquired as to why, I was told it was out of stock. I decided not to fool with that seller any further, even though they did have the best prices, and instead ordered one from elsewhere. It's black instead of the original's gray but I'm upgrading from the original 30 feet to 40 feet. I don't really need the ten extra feet but for just $2 more, why not? I don't know why the thought of spending more money fixing up yet another vacuum cleaner that I do not need excites me so much but it does. I've got to get this little addiction under control.
 
Cleanup Time...

So it's a lazy Sunday afternoon and I had done almost nothing with/to my new Sanitaire in two days so I decided to address the only thing I could until the replacement cord and light bulb arrive—its own dirt.

As metioned earlier, the dirt channel inside the belt cover had a serious, let's call it an 'en-crud-station' of gunk and pet hair that gave the machine a faint dog odor. It wasn't exactly overpowering but it was enough that my two cats regarded the machine with some suspicion. But then again, aren't cats suspicious of just about everything?

So I set to work with paper towels and spray cleaner and ended up getting about 98 percent of the crud off of the base, the belt cover and the brush roll. Not pleasant work but it had to be done. In the process, I discovered a fair amount of surface rust on the inside of the belt cover, which, along with the caked-on crud, confirms my suspicion that the machine was used to pick damp dirt.

I finished it off by removing the paint scuffs with a simple technique I observed in a YouTube video yesterday where the technician used a Scotchbrite pad and spray cleaner. It works like magic. Almost all of my machines have paint scrapes to some degree so I'll likely be working on them this way one by one.

In addition to this afternoon's activities, I had given the outer bag a good vacuuming with my Kirby Heritage and its trubo brush (it always seems ironically redundant to vacuum another vacuum cleaner) so the machine is looking great except for replacing the cord and headlight. The brush strips are also beginning to show their age but Friday's test run proved they're not quite ready for the waste bin yet.
 
Scuffs

If you use Mr. Clean magic eraser. If you get it wet it works just as well. Glad to hear it's running good.
 
Mr. Clean's Magic Erasers...

I tried those a few years ago and did not have much success. They would usually disintegrate before they really made much headway on the scuff marks. I was moistening them with water but maybe I should have been using spray cleaner. After working on my newly acquired blue Sanitaire yesterday, I took my much older red one out on the deck and scrubbed the scuff marks off of it as well. It was a little more effort but that machine has never looked better since I've had it. I may have to take some photos of the two together once I'm finished refurbishing the blue one.
 

Latest posts

Back
Top