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Author Topic: Miele S5261 Motor noise  (Read 329 times)

Offline mastriv

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Miele S5261 Motor noise
« on: September 19, 2020, 05:19:31 PM »
The motor on my trusty, now 10 year old, Miele has started making grinding noises (smelt briefly of burning rubber).

Have broken down the cleaner - tried cleaning the motor with compressed air - a little bit better but not running smoothly. The motor still powers on and turns but not evenly and is very noisy.

I could try breaking down the motor completely - could be the commutator is gone or it needs new bearings?

So two questions - (a) does anyone know of instructions on how to break down/service the motor (looks a fairly closed unit - not sure how to get the metal cowling off) (b) know of where I could find a spare motor (seems difficult as pre EU power/wattage regs).

My skill level is fairly handy (have tools & multimeter) but now experience with vacuums :-(

MOTOR PART #:MRG 742/84-42/2

Online MVacs

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Re: Miele S5261 Motor noise
« Reply #1 on: September 19, 2020, 05:57:59 PM »
Miele motors, like Dyson ones, are usually not of good enough quality that they are repairable. You'd normally change the motor.

You should be able to find a new or used one without too much difficulty, but new ones aren't cheap.

Offline macman

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Re: Miele S5261 Motor noise
« Reply #2 on: September 20, 2020, 10:48:10 PM »
Much more likely that the brushes have worn down, if you open it up it will be very easy to check them. All you need is a T20 driver to remove  the top of the housing and a suitable socket to undo the nut on the fan: from memory it's 13mm. The outer metal cowling is simply tapped off around the rim, friction fit only.
Remember that the nut on these is a left handed thread: you need to hold the fan steady and turn the nut clockwise to undo it.



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