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Author Topic: what stops the brushbar spinning in upright position  (Read 2132 times)

Offline Flipper

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what stops the brushbar spinning in upright position
« on: February 18, 2023, 06:56:56 pm »
Just a quick geek question, I know there are no click switches on the clutched roots, what is it that stops the brushbar turning in upright position & brings it in on tilt? position of the clutch belt? Not important but was just pondering
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Offline macman

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Re: what stops the brushbar spinning in upright position
« Reply #1 on: February 23, 2023, 05:32:43 pm »
Reclining the handle activates a lever on the clutch that re-engages the drive.

Offline Dysonboy

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Re: what stops the brushbar spinning in upright position
« Reply #2 on: February 23, 2023, 11:29:27 pm »
The clutch. It works in literally a very similar way to how a clutch in a car works..

When you bring the machine upright a piece of plastic on the chassis pushes against the clutch disengaging the friction plate, when reclining the machine the spring within the clutch automatically pushes it back and thus reengaging the friction plate and making the belt turn. When you physically turn the knob, your doing exactly the same as the machine does automatically, but you turn it further to just lock it into place.

I have actually known (although pretty rare and only seen it twice in many machines ive dealt with) for the clutch friction material to wear out, again, exactly like that of a car, causing the clutch to slip when the brushroll hits carpet and is under load. New belts fitted and the brush still stopped under load, swapped out the friction plate and was good as new. Must be on machines that experience an awful lot of on and off on the brush.
Collector and restorer of most vacuum cleaners including vintage, older style models and newer models. Seller of refurbished vacuums and vacuum parts Livin' every day, as if it were the last!

Offline Flipper

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Re: what stops the brushbar spinning in upright position
« Reply #3 on: February 27, 2023, 05:51:08 pm »
excelent. thanks for that guys, i'll get one to bits & have a look
Broken things make me money

Offline matrixresonator

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Re: what stops the brushbar spinning in upright position
« Reply #4 on: February 27, 2023, 08:35:11 pm »
This gives you a look inside a clutch -

Offline Flipper

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Re: what stops the brushbar spinning in upright position
« Reply #5 on: March 12, 2023, 06:54:41 pm »
many thanks for that @ matrixresonator, I have a pile of two dozen or so to rebuild at some point & this will come in very handy.
Broken things make me money

Offline MVacs

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Re: what stops the brushbar spinning in upright position
« Reply #6 on: March 30, 2023, 07:58:42 pm »
I have a pile of two dozen or so to rebuild at some point.

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