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Author Topic: DC04 motor burning out?  (Read 8024 times)

Offline Croftie

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DC04 motor burning out?
« on: March 26, 2015, 12:37:26 PM »
Hi, Got a burning smell from it so investigated. The belt is well worn and has been rubbing and one of the bearings in the Brush Bar was seized so I presumed that's the cause. However, the post motor filter and casing is full of black and has the same burning smell.

Not sure if that's just normal carbon dust from the brushes and it smells from the burning belt or the motor is on it's way out.

It's about 15 years old and the motor doesn't sound sick but do you think it's on it's way out? Don't want to put new filters in for it to ruin them when it dies shortly After.



I would open it and check but the clips are knackered and it's been riveted shut. Don't want to drill the rivets out before I've got a replacement housing incase it won't go back together.



Thanks.

Offline autovac01

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Re: DC04 motor burning out?
« Reply #1 on: March 26, 2015, 02:20:12 PM »
You are correct that the black dust is normal wear from the carbon brushes, However at that age it is likely the motor wont last, unless it has been replaced at some time in the past.
Just wash the filters for now, make sure they are dry before you refit them.

Offline Croftie

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Re: DC04 motor burning out?
« Reply #2 on: March 26, 2015, 03:00:12 PM »
Would changing the brushes prolong the life or do the motors just wear out anyway?

Don't think the motor has been replaced, the housing was just damaged in transit.

Is the post motor filter washable then? Didn't think it was.

Thanks.

Offline autovac01

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Re: DC04 motor burning out?
« Reply #3 on: March 26, 2015, 06:35:03 PM »
Yes you could change the brushes. as long as you do it before they are worn down so much as to scratch the armature.
The pad type of filter in your picture can be washed, you are never going to get it completely clean will be fine for a while, however, they are not expensive. The spongy pre motor filter at the top of the cyclone is best washed every month for best suction and longer motor life.

Offline Croftie

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Re: DC04 motor burning out?
« Reply #4 on: March 26, 2015, 10:09:46 PM »
I'll wait for the housing, crack it open and see what's what.

Already got new filters but didn't want to use them until I know if the motors ok. Thanks for the advise  :tiphat:

Offline Madrat

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Re: DC04 motor burning out?
« Reply #5 on: March 26, 2015, 11:11:54 PM »
What type of DC04 is it?

Offline Croftie

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Re: DC04 motor burning out?
« Reply #6 on: March 27, 2015, 01:21:26 AM »
It's grey and lime none clutch.

Offline Madrat

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Re: DC04 motor burning out?
« Reply #7 on: March 27, 2015, 01:25:52 AM »
These have different motors to the other DC04s therefore the motor housing and rubbers are different.

Offline Madrat

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Re: DC04 motor burning out?
« Reply #8 on: March 27, 2015, 01:28:51 AM »
You can fit a YDK motor but will require the different bits to fit it, available here  https://manchestervacs.co.uk/Dyson/DC04-spares.html/DC04-ametek-motor  You would also need a new motor bucket as yours is broken.

Offline Madrat

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Re: DC04 motor burning out?
« Reply #9 on: March 27, 2015, 01:31:25 AM »
You might be better putting it back together as is until the motor gives out.  I don't think the Ametek motor fitted to yours is available any more, or any parts for it  :(

Offline macman

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Re: DC04 motor burning out?
« Reply #10 on: March 27, 2015, 08:14:23 AM »
The post-motor filter is not washable.
Motor brushes can be replaced, but it's rarely a long term fix, as the commutator will be equally worn. I'd switch it to a standard YDK type motor once you've gone to the effort of stripping it right down anyway.
With the above kit you will have a DC04 effectively as good as new for under 30.

Offline Madrat

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Re: DC04 motor burning out?
« Reply #11 on: March 27, 2015, 01:15:56 PM »
Beg to differ but pre and post motor filters are washable on that DC04.

Offline macman

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Re: DC04 motor burning out?
« Reply #12 on: March 27, 2015, 06:03:03 PM »
I thought it had the same pad filter as the DC07? Which I've never been able to wash successfully.

Offline Madrat

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Re: DC04 motor burning out?
« Reply #13 on: March 27, 2015, 06:09:24 PM »
Put them in the washing machine, 30 degrees quick wash, you only need a tea spoon of powder for half a dozen of them.

Online MVacs

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Re: DC04 motor burning out?
« Reply #14 on: March 27, 2015, 06:30:13 PM »
I don't think the Ametek motor fitted to yours is available any more, or any parts for it  :(

We have one new Genuine one.  8)

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