Bosch WAE32464GB/01 best motor brushes?

[CJAPeterborough]

I know the Bosch part is 154740 but there is a huge price range of replacements available from a couple of quid, to nearer £40 from Bosch.
Thanks to an excellent tutorial from Penguin,I have changed brushes a few times now and after one or two noisy moments have been happy with the outcome.
There is some talk of laminate and different carbon grades etc.
Which is the best option from WG shop for longevity especially considering this is a 1600rpm motor?
Whilst searching the forums there are a few comments that Bosch are hard on brushes etc. and require changing every couple of years.
Previously I had a WFF1401 and changed the brushes once in its lifetime of more than ten years and is probably still working somewhere.
So what has changed?
Apologies for the nerdy question but are there real differences and should the replacement be a laminate variety?

Thanks in advance

BTW I guess this should be in the washing machine forum and not general appliance -apologies for the error -can a mod move this across?

Chris

[Phidom]

Re: Bosch WAE32464GB/01 best motor brushes?

I’ve always used the cheap ones and they have not given problems. I’ve not found Bosch to be hard on brushes if the motor is in good condition but I have found the motors are prone to develop shorted turns. This is when the motor overheats and melts the lacquer that insulates the copper windings. Some of the windings then short circuit, giving rise to sparking at the brushes. This burns away the brushes quickly and is also a fire hazard. I suggest you observe the motor with the machine spinning at its maximum speed. A few small sparks are OK, if the whole underside of the machine lights up like Blackpool illuminations you have a motor problem!

[Martin]

Re: Bosch WAE32464GB/01 best motor brushes?

CJAPeterborough wrote:BTW I guess this should be in the washing machine forum and not general appliance -apologies for the error -can a mod move this across?

Are you in the whitegoods trade ?

[CJAPeterborough]

Re: Bosch WAE32464GB/01 best motor brushes?

No I am not in the white goods trade -too much like weight lifting I’m afraidjavascript:emoticon(‘:)’)
Although as I get closer to retirement I may look to try and supplement my income (I do most of my own car maintenance and build PC’s to as hobbies)
I have always used Bosch appliances over the last 25 years and I suppose have brand loyalty-a lot of my family have them and I am fairly keen (tight?) to save money when I can.
I guess (I think) I have learnt a little bit about them over the years.

Regarding the arcing -would you use something like a brake cleaner to remove the carbon(motor out off machine) from the windings,brush away or leave alone?
I guess if the carbon build up is causing the arc it would make sense to remove it?Would depend if the resin coating was effected in any way as brake cleaner is an organic solvent.

BTW the Bosch site says the part number is 605694 in the WG shop for the replacements or I would have to rub down cheaper carbons to make them fit?

[Phidom]

Re: Bosch WAE32464GB/01 best motor brushes?

Others may disagree with me on this but I’ve never used anything other than a dry rag to clean the commutator and perhaps a sewing needle to scrape out carbon between the copper segments. Carbon dust between the segments could cause short term sparking but my feeling is that it would quickly burn away and the motor would settle down to normal operation. You can buy an abrasive stick to dress the surface of the commutator if it has become rough but again, it’s not really necessary. If you have access to an airline and you have the motor out to do a brush change you could blast the dust off with air. I would not use solvents or sprays as again, the residues could be a fire hazard.

[Author]

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