Author Topic: dyson dc40 brushbar not turning (Read 139718 times)

tjncfc54 · « **Reply #30 on:** October 29, 2016, 02:36:10 pm »

Hi, tested the brush head on my DC40 and it's fine. The brush head switch is fine but no power to the socket at the brush head. So it's definitely the yoke cable at fault. I've tried to remove the yoke but haven't succeeded yet. Anybody have a link or idiots guisde to remove the yoke to get to the cable please?

Parwaz7862 · « **Reply #31 on:** October 29, 2016, 08:30:00 pm »

It's similar to a DC41 yolk replacement. It's been almost two years since I owned a DC40 so I'm going by memory:
Remove the hose from the back of the vacuum's ball
Remove the balls (Filter side and unscrew all the visible screws for the filter holder grill
and the other side has a glamour cap which needs to be turned anti clockwise, then there's a black ring which needs to be turned anticlockwise to be screwed off

The left hand side will then come off. Remove the two screws holding the semi circular white bracket and all the visible screws from underneath the yolk and both sides. The yolk assembly then comes off from both sides of the motor housing and it's pretty easy when you do it, it may look hard but it's much easier than you think

tjncfc54 · « **Reply #32 on:** October 30, 2016, 02:33:57 pm »

Hi, thanks so much. I was almost there without actually knowing it. What a horrible design that yoke wiring etc is! Whoever designed that should be ashamed. Got it all back together apart and working from the toothed notched wheel thing. I just couldn't line it up with it on so removed it. Then when I put it all back together I couldn't get enough clearance / room to refit it. What does it actually do because it locks in postion upright without it.

Parwaz7862 · « **Reply #33 on:** October 30, 2016, 02:58:58 pm »

You're welcome :)
Glad to hear it worked out well for you

tjncfc54 · « **Reply #34 on:** October 30, 2016, 06:20:52 pm »

Got it all back together apart and working from the toothed notched wheel thing. I just couldn't line it up with it on so removed it. Then when I put it all back together I couldn't get enough clearance / room to refit it. What does it actually do because it locks in postion upright without it.

Parwaz7862 · « **Reply #35 on:** October 30, 2016, 07:07:19 pm »

Not really sure of the intended purpose, sorry.

MikeM · « **Reply #36 on:** December 06, 2016, 08:10:18 am »

Hi All,

I just wondered what tools i will need to disassemble the DC40 to replace the yoke cable? I am hoping to fix my dyson this afternoon after work so if you know what tools are needed i can take some home for the evening. Any replies by 2pm will be much appreciated!

Mike

MVacs · « **Reply #37 on:** December 06, 2016, 08:14:39 am »

Quote from: MikeM on December 06, 2016, 08:10:18 am

Hi All,

I just wondered what tools i will need to disassemble the DC40 to replace the yoke cable? I am hoping to fix my dyson this afternoon after work so if you know what tools are needed i can take some home for the evening. Any replies by 2pm will be much appreciated!

Mike

We sell >>these<< for such a job. Take those sizes home if you have them.

MikeM · « **Reply #38 on:** December 06, 2016, 10:03:31 am »

Ah brilliant thankyou. I have the T10 & 15 sizes but not the T8. Will have to wait a few days and order one online

MVacs · « **Reply #39 on:** December 06, 2016, 03:18:46 pm »

Quote from: MikeM on December 06, 2016, 10:03:31 am

Ah brilliant thankyou. I have the T10 & 15 sizes but not the T8. Will have to wait a few days and order one online

You may not actually need the T8 for that job, see how you go with the T10 and T15.

MikeM · « **Reply #40 on:** December 06, 2016, 04:30:49 pm »

So I have got his far but don't know what to do from this point on? Don't know what needs removing etc? Any ideas?

rob_520 · « **Reply #41 on:** March 20, 2017, 06:36:56 pm »

has anyone got a pictures of where the wiring loom goes back with the clips. as they just fell out when taken part .need to put a new loom in but need to know where the wiring feeds plus where the clips go. pictures would really help many thanks

DysonSolutions · « **Reply #42 on:** July 26, 2017, 06:16:05 pm »

I have a DC40 in for repair. The Brushbar only spins when the machine is tilted back at a certain angle. Move the angle and the Brushbar stops. I checked the Wiring Loom and there was a cut in it. I replaced the Wiring Loom with a brand new one. But still the problem exists. Is there an actuator switch ?

Vacuum Cleaner House · « **Reply #43 on:** July 26, 2017, 08:51:42 pm »

I must see if I can take pics, Ive done so many I can do them with my eyes closed.

Dyson solutions
On the black casing that holds the motor in place is a small micro switch , Often these machines are worked on by inexperienced and they do not make sure that actuator is not in the correct possition and you end up with a situation like your finding. Simply clip in the catuator the correct way and you should be all good..

Just a by the way , never rigg the cleaner heads on these newer dysons to the mains like you could do on older dc 18's 24's and 25's . These heads use a 220v DC motor and the rectifier pcb board sits in the main vacuum body ( older cleaner heads had the pcb in the cleaner head itself. If you plug them into mains , BOOOM

Had 3 customers do that this year already when attempting a DIY job