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Author Topic: Dyson Clutch Stripdown and Refurb  (Read 4559 times)

Online beko1987

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Dyson Clutch Stripdown and Refurb
« on: February 10, 2014, 12:30:27 AM »
I was bored, so re-belted the clutch for my in bits DC07. Found it made a nice little how-to!

This is the same for a DC03, 04, 07 and 14 Clutch (in my experience)

Remove the clutch. On most machines it's baseplate off, brushroll out (the belt emoval tool is easy, 2 screwdrivers are harder, especially putting the new UNWORN belt back on...), brushroll carrier pout, and internal hose disconnected, 3 screws and clutch over off, slip the motor belt off and tug hard) DC03 is different, and if you dont have a clutch then this is the wrong tutorial for you!



Remove these two T20 screws



Some clutches have a tab that you press in and flick up with a screwdriver to release. Others, like this one just need a small turn to release



You can now change the Motor to Clutch belt





A cotton bud soaked in grease was spun round the bearing to fully grease it. Belt sits behind the locking tab around the pulley.



That bit done, we can strip the main clutch out. These two bits probably fell out when you tipped the clutch upside down. If not, do this now...



Next, take some Circlip pliers and pop the little clip off the end. There are two types of circlips, this type and an open ended type. My one tool fits both, so I imagine they are idential in dimensions



Sit the open end of the clutch on something, as them the circlip is removed the innards will spring forward and could potentially scatter

https://lh6.googleusercontent.com/-9kg5fLZYln8/Uvf1pByCeYI/AAAAAAAAUec/v2zOkB7vQ84/s800/IMG_20140209_212523.jpg

https://lh4.googleusercontent.com/-vQ99vW7eH8o/Uvf1qF9c21I/AAAAAAAAUeY/2pcx83xydS4/s800/IMG_20140209_212532.jpg

Everything inside (almost)



Clutch to Brushroll belt next







It just pops up and out with a screwdriver. If your belt is snappedit will just fall out...





If this piece is badly worn then the clutch is scrap. A good pulley off an otherwise scrap clutch can be swapped in, infact any of the bits can...

Next, pop the new belt on the pulley, and push the belt through the hole from the inside



Push the pulley down into the hole flat, whilst pulling the belt. The pair should just slip down and the belt pulls down onto it



Drop of grease on the bearing race, to help it spin if the brushbar jams, and to hold the 3 ball bearings in during the next steps





The little bearing holder drops in



and then the top cog







Drop of grease on the centre spline



And push that through everything. The cogs have to match up, so they pass each other and depress fully. Not having them pass will result in the clutch permantly spinning even when off





It will ned to be handled with care once lined up, as it moves off so easily



Next, push the sprung insides in until fully home and mated, then I push the whole assembly down onto a bottle to keep the cog fully extended to put the circlip back on.





The top bearing probably fell out earlier too. Push it back in. It needs to be square or it will bind, I use a little screwdriver to gently push it down all around





Then sit the circlip ontop of the spline, and push it down until it clicks with the circlip pliers (or any pliers). Nip the ends together again and check it's seated. I've had worn ones fall off whilst running as they havent been seated correctly





And done, you can stop pushing down on it now!

Back to the other end of the assembly

The friction plate is likely to be quite worn. If your clutch doesnt stop when off, this could be the cause.



Simply turn the metal bit round so the worn side is facing down





A few blobs of grease to stick the friction plate to (dont get grease on the friction surface, basic brake safety!)



And put the friction plate worn side down onto it



Put the two parts together, and make sure the belt passes over the screw pillar where it goes to meet the motor





One re-belted, serviced clutch!

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!

Online premierdysonrepairs

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Re: Dyson Clutch Stripdown and Refurb
« Reply #1 on: March 06, 2014, 10:49:12 AM »
Good post, very informative and worth doing if you have time on your hands. :thumbsup:
If @ first you dont succeed "scrap it"

Online MVacs

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Re: Dyson Clutch Stripdown and Refurb
« Reply #2 on: March 06, 2014, 10:56:02 AM »
I agree, very strong info.  :thumbsup:

Offline trkbyron

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Re: Dyson Clutch Stripdown and Refurb
« Reply #3 on: May 09, 2014, 12:40:30 AM »
 :tiphat:
A lot better info than the videos I looked at regarding the removal and refitting of the Dyson clutch.Agree also that the clutch plates,(the steel and fibre discs) can be swapped over to give the unworn surfaces another period of use,mine were slightly worn after 13 years so that pushes the unit on for possibly another decade :-X
My unit on the DC07 All Floors was just like this one,a simple plastic latch on the top cover and no washer between the spring internally,unlike the videos which show these 2 small differences.I am also going to lubricate the moving parts as per this set of photos suggest,especially the needle roller bearings in the top part of the unit. 8)
The only thing I have attempted to reface is the white PTFE roller carrying one of the belts.Mine had some small black wear rings running aroung the surface so I have used 400 and 1200 wet and dry with some rubbing compound,the same gear that you would use on car paintwork to clean up minor scratches.This has restored the surface to a good smooth finish with only a few 'thou loss of surface.Anyone like to comment on if this white spindle should be a matt finish or a very shiny surface as I am polishing it up at the moment waiting for the new belt set to come? I am guessing the spindle should not be too polished so it does not encourage belt slip in the future.I thought that the selector spring end of the assembly might come apart but think this is manufactured complete to not allow this to be stripped down at any time?
 :bow:Anyone else had the clutch apart as this posting by beko 1987 seems to be the best info on the unit anywhere.

Online beko1987

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Re: Dyson Clutch Stripdown and Refurb
« Reply #4 on: May 09, 2014, 12:51:20 AM »
He he cheers!

I've reused white rollers that have gone black with no issues. The belts are under enough tension to tide through any imperfections  I think.

Do have a few spare though for the really worn ones!

If you have an old Citroen LHM is good for lubrication too!

I had a clutch from a dc04 the other day with an extra washer thinking about it. Didn't think to update my post. May do with the next one I get!

The videos are good, but don't portray the steady hand needed to hold it all together, although after one or two it does get easier!
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!

Online beko1987

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Re: Dyson Clutch Stripdown and Refurb
« Reply #5 on: May 09, 2014, 12:52:29 AM »
Oh and I tried to get the selector end off once and cracked it so don't bother now. If its that broken I get a spare shell and make 1 good one out of two.
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!

Offline trkbyron

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Re: Dyson Clutch Stripdown and Refurb
« Reply #6 on: May 09, 2014, 01:17:18 AM »
 :o
Just a quick note, the 2 Torx screws holding the endcap on my unit were T10 size and I never came across the metal clip that is shown in the video at the start of the stripdown did you ? :-\

Online beko1987

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Re: Dyson Clutch Stripdown and Refurb
« Reply #7 on: May 09, 2014, 04:57:32 PM »
I've had the metal clip a few times, on earlier clutches normally, DC04's especially.

Not sure what its specific purpose is, but I always replace it just in case!

T10 - thanks for that! I tend to keep the t-10 and t-25 bits next to each other in my little case now and just go based on size!
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!

Online beko1987

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Re: Dyson Clutch Stripdown and Refurb
« Reply #8 on: June 12, 2014, 10:44:09 PM »
I was passing the time rebelting and getting my spare clutches in good working order to savea bit of time on rebuilds (just swap the unit), and I came across a plastic shim!

I think they were on early clutches, the one this is from came from a DC04 I think.



As you can see, the centre spindles are machined differently, and in the clutch without a shim is built into the assembly (probably saved 0.06p per unit  :-\)







Oh, and going through the scrap bits from the clutches I'd class this condition as fine



And these are past it...





9 random used clutches into 5 ready to go ones!



Going by the figures on watchdog last night I reckon I've saved about 200 doing it myself... :biglaugh:
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!

Online MVacs

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Re: Dyson Clutch Stripdown and Refurb
« Reply #9 on: September 02, 2016, 12:19:03 AM »
We now have white clutch wheels in stock: Dyson DC03 DC04 DC07 DC14 DC27 DC33 Clutch White Wheel

Online beko1987

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Re: Dyson Clutch Stripdown and Refurb
« Reply #10 on: November 11, 2016, 03:02:26 PM »
A little while ago now, I made a little video of how to change the belts in a clutch

<a href="http://www.youtube.com/watch?v=wru9eABpkYk" target="_blank">http://www.youtube.com/watch?v=wru9eABpkYk</a>

Just incase it helps anyone!
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Online Madrat

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Re: Dyson Clutch Stripdown and Refurb
« Reply #11 on: November 11, 2016, 03:40:29 PM »
I have never found cir-clip pliers to fit  :o

when refitting I spit on friction plate to hold it in place.

I use a bit holder screwdriver to push cir-clip back on, always works first time every time.

Online beko1987

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Re: Dyson Clutch Stripdown and Refurb
« Reply #12 on: November 11, 2016, 03:52:05 PM »
I got lucky with my circlip pliers, I have others that don't fit.

The bit holder is ruddy genius, will try that on the next one I do!
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!

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