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Author Topic: Miele S424i - Stripdown and Refurb  (Read 12338 times)

Offline beko1987

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Miele S424i - Stripdown and Refurb
« on: April 25, 2017, 08:50:56 pm »
This used to be my mums



I got it for her soon after I met Amy, for £25 from Reading via ebay. It's been a good old thing, and served mum well. But, I obtained a free and quite battered Miele S5 for free from Facebook just after christmas, so I gave mum that (as it was too far gone to be refurbed, and made a good upgrade) and took this back to sell.

First up, the mini turbo brush I found to go with it

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Pop the lid

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Then prise the end caps off

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This separates the two halves

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The turbine and the framed end caps it sits in lift out and off the belt

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Surprisingly this still span quite well

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The axle doesn't come out of turbine (certainly not cleanly) so I cut and picked it all off

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The baseplate and brushroll pop out of the main frame

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!


Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #1 on: April 25, 2017, 09:00:29 pm »
The white brushroll end caps prise out from the sides, then the brushroll can be removed

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The brushroll got cleaned, and I started on the main turbo head

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These screws turn (and are a bit chocolatey, so mind the screwdriver)

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And the baseplate lifts off at the rear and unclips from the front

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With that, undo the 4 normal screws and lift the top off

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The suction valve unclips

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Next, we need to undo these screws here holding this cover on

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You can lift out the turbine and neck. The axle does push out of the turbine here, and needs to so you can seperate the two parts

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #2 on: April 25, 2017, 09:10:22 pm »
The brushroll and belt guard lift off

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The end caps come off the brushroll

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And I cleaned the brushroll ready for washing

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I left the wand alone, as it was fine

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Hose now

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The ends remove easily, no tools needed on the wand end

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Some light tab flicking on the machine end

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And we can finally move onto the actual machine 3 posts in!

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and lift the first hood

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #3 on: April 25, 2017, 09:14:19 pm »
Small tools off

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The tool door is broken, I am hoping it will glue up at this stage in the past

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So off it comes

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Bag fill piston indicator now

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2 screws has it out

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and it pops apart

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!


Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #4 on: April 25, 2017, 09:36:35 pm »
Next lid opened now, to reveal the bag door! (brand new bag fitted so I could sell the machine with a new bag...)

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To remove it, push the 2 black hinges either side inwards one at a time, they pop off and the door lifts off

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The bag door catch fell off in the car after some enthusiastic cornering when I forgot it was in the boot (I miss the Xantia, it did corner well!), so this is what it looks like if I had just taken it off...

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Underneath the bag door, the hose inlet is fixed in with 4 screws

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Once they are removed, it and the bag seal flap fall off

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4 tabs split the unit down further still

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The bag support is held in with a screw either side

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And a spring which sits like so on the bag support and braces/springs against the main body of the machine

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #5 on: April 25, 2017, 09:43:29 pm »
The post motor filter cage lifts out next

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And these two screws need to be undone

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Which enables the switch assembly to be removed

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The part that rotates and turns the potentiometer when the power slider is adjusted lifts out

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The power and cord rewind pedals pop out, each pivot is one big clip

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The slider itself can be removed

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Onto the electronics now. The black rod is a switch that is activated when the floor tool is parked in the cleaner, it turns the machine off (and has never worked)

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It lifts out, along with the unplugged switch

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #6 on: April 25, 2017, 09:54:59 pm »
The main on/off switch lifts out now, you can see that both are on the same circuit

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it goes to here on this packed connector

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Undoing some more screws enables the whole rear part to lift up, which will include EVERYTHING!

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The cord rewind lifts out of the unit and the blue wire unplugs from the connector block, and the black from the switch.

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Unplug the motor plug

The motor is held in by the one screw in a frame

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And once unscrewed the motor can be removed

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The fancase frame clips onto the top part of the vacuum

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All the sound deadening can be removed

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As can the connector block

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #7 on: April 25, 2017, 10:00:15 pm »
Lots of sound deadening sits in the bottom of the machine too

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Staying with the lower chassis, 2 screws hold the carry handle together

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The furniture guard/motor housing seal lifts off then

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Under these two screws is the power socket and wires

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Once removed, the whole lot comes out

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Underneath now

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Pop each wheel off, and you can see the screws underneath

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Undo all 8 screws and the wheel assemblies come off, and can be split further for lubrication

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #8 on: April 25, 2017, 10:15:29 pm »
The last thing to come out is the side parking slot

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and it's all done, and ready to be washed

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and dried, polished and ready for reassembly

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Wheels first

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Put a smear of grease on the metal stub at this point

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #9 on: April 25, 2017, 10:24:07 pm »
Side parking slot refitted

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Power socket and wires fitted

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And run around like so, with the plug fitted in place

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The bumper/seal can be fitted now

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Handle bottom fitted

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Refit the sound deadening once it's fully dry to both halves of the casing

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Pop the motor fancase holder in

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This is the thermal cutout for the motor. Clean this up so it doesn't give false readings and overheat when it shouldn't!

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #10 on: April 25, 2017, 10:27:33 pm »
Fit the motor and screw the clamp down

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Refit the cord reel, not forgetting to pop the cables through the chassis to the top side

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Wire everything up on the top side

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Re-assemble the switch cover

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And refit the speed control stuff underneath

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And bolt it all down

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Fit a nice air freshener

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then fit a new post motor filter with cage

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Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #11 on: April 25, 2017, 10:31:35 pm »
Screw the bag holder down

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Pop a nice new pre motor filter in

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fit a new bag

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Fit the bag door latch

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Reassemble and fit the hose entry parts, then fit the bag door. Line one side up, and fit the hinge parts, then lever the other hinge side on



Re-assemble the piston indicator

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and screw it down

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Then refit the tools and tool door

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Sadly glue did not hold the hinge, but I was completely honest when listing it for sale and it still sold within 20 minutes, so it wasn't worth worrying about!

Main turbo head now

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Pop the slider back into the hood
Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #12 on: April 25, 2017, 10:35:47 pm »
Refit the brushroll into the base chassis

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Re-assemble the turbine and neck, and refit the cover

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Then screw the turbo brush together and fit the baseplate

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Re-assemble the mini turbo head

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And the job is done!

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It sold for £55 even with the bag door fault declared and shown the the buyer, who did not care, she had been wanting a 'nice Miele' for her dad for a while, and seemed impressed with this when I demonstrated it to her! So that's £25 to buy, then used for nearly 5 years, then sold for £55, so £30 profit for changing my mums hoover, bargain!
Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

Offline GeorgeJ

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Re: Miele S424i - Stripdown and Refurb
« Reply #13 on: April 26, 2017, 03:02:12 pm »
It sold for £55 even with the bag door fault declared and shown the the buyer, who did not care, she had been wanting a 'nice Miele' for her dad for a while, and seemed impressed with this when I demonstrated it to her! So that's £25 to buy, then used for nearly 5 years, then sold for £55, so £30 profit for changing my mums hoover, bargain!
Congrats!  It's always great when things work out so nicely.

Also, thanks for the pictorial (as always!).
You miss 100% of the Dysons you don't buy.  -Wayne Gretzky
 -Michael Scott  -GeorgeJ

Offline beko1987

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Re: Miele S424i - Stripdown and Refurb
« Reply #14 on: April 26, 2017, 04:12:53 pm »
Yep, always good when I can make money by not doing much work!
Collector and restorer of vintage vacuums, Dyson Appreciator! Come and see my blog, where I am uploading all my mountains of brochures, manuals and other vacuum cleaner paperwork, and also my youtube channel @beko1987!

 

 

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