How do Electrolux Automatics work?

[Klectrolux]

I am pretty mechanically inclined, but I can't figure out how the automatic part of Lux vacuums work. I see three hoses (at least in the Super J style machines) coming off of the dial (It seems as if there is a switch in there that is activated by bellows that expands?), the three hoses goto the bag compartment, the inlet right before the bag, and then one for regular pressure/outside pressure. How does this system work?

 

[suckolux]

It is pretty tricky, having just had a very good look at my Silverado a month or so ago, with advice from here, got it working.There was a post somewhere that sent me to description somewhere.

 

[scvacuumguy]

You are close- I may be slightly off as well, but this is what I have been told and what I have seen.

The dial regulates the pressure on the membrane in the automatic control. One hose goes to the bag chamber, one to the hose inlet, and the third hose goes over to the bellows that opens the chamber.

 

[scvacuumguy]

When the pressure changes in the automatic control, it sucks down the plunger that opens the bag chamber. You will notice there is a plastic piece surrounding the little plunger...more on that in the next post....

 

[scvacuumguy]

The plastic bag latch terminates around the plunger and is able to be pulled down by the plunger (my thumb is on the bag latch), and the bag chamber opens. At that point, everyone is happy and takes some hits from the hookah in the background. Don't judge...

 

[joe22]

its magic. . . .electrolux magic

 

[collector2]

Its actually a very simple system. It works on a difference in suction pressure. When the pressure at the back of the bag compartment (aka - right off the motor) is the same as the pressure at the front (aka the hose connection) everything is ballanced. As the bag fills suction drops at the hose end and an imballance is created. When the imballance is sufficient enough it sucks down the bellows which activates, either the latch, releasing the front cover on older models. Which then, in turn, turns the machine off or, in newer models, it simply moves a switch which turns the machine off. The controll dial merely regulates the tension put on a diaphram spring which, in turn makes it harder or easier for the diaphram to operate (eg - requireing more or less of an imballance of suction to activate )

hope that makes sense.

Doug

 

[suckolux]

I know I do a little dance every time mine pops open. So happy it works after all this time.

 

[Klectrolux]

Thanks for the replies. What a neat system, I figured as much it would measure the difference in pressure from the front to the back, but I wasn't sure. Too bad the Diplomat LX won't open up when the bag is full lol.

 

[scvacuumguy]

Hi Doug,

What is the tube that terminates at the front of the bag housing for?

 

[suckolux]

Does that maybe connect to the tube inside the suction port?

 

[crevicetool]

Hey kids,

take a look at this thread done well over fifty years ago now......

http://www.vacuumland.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?1152

 

[crevicetool]

Christopher,


Do you mean the tube that is at the most rear-ward part of the bag chamber, that goes from the bag chamber to the cord winder?

If so, that was put in place starting with the model "G" and continued (as far as I know) today - to provide a minimal amount of cooling air to the motor in the event the machine was allowed to operate with a completely clogged hose or bag. They may have (I don't know) eliminated that feature when the heat activated circuit breakers were added years later.

 

[suckolux]

Thanks again Rick, love when the brains bring up the little stuff I might miss. Always thought the little hole in the back was to cool the cord winder area, my bad.Somewhere I also downloaded someones older model owners manual for the Silverado, thanks again to whoever posted that baby.

 

[beerad]

Christopher...You have....

400 vacuums?? Wow...Where do you keep them all? I am very curious. Would it be possible to post some piks of your collection?

thanks,

Brad.

 

[scvacuumguy]

I've never had any clue what the cordwinder to bag chamber tube was from. I do know that it really doesn't change anything if you remove it- unless someone knows differently.

Beerad- I'll just send some pictures of the sheds...we are slowly going through all of the crap and trashing bits and pieces. Most of them are random 70s and 80s machines that we rob parts off of. Consider about 100 of those in-stock units for sale as well (I guess those shouldn't be considered "collection" machines)

Crevicetool- Are you my Buckeye rep by any chance?

 

[kenkart]

Cordwinder tube..

I was told by an old time Elux guy it was to draw a small stream of air thru the cordwinder to cool it because it was plastic, the model G of course was metal and better shielded from the heat of the motor, it does not look like it would cool much too me!

 

[scvacuumguy]

That makes a lot of sense Hans. I guess it is a tiny, tiny stream of air. When we do a basic service and cleaning on a Lux for a customer, the motor gets blown out, but not removed- so we never re-connect the hose going to the cordwinder seeing as how that would take extra time to remove the motor, etc. I haven't had one come back with a cordwinder melting!

 

[collector2]

Hey Christopher:

If its the tube I'm thinking of it ends in a flared rubber end that seals against the hole in the cover to which the corresponding tube is connected to. This is the tube that gives the suction connection from the back of the bag housing.

Doug