ISE 5 mk 1 motor failures

[iadom]

I seem to be having an epidemic of motor failures on the ISE5 mk1 machines.

Two last week and one reported this morning with a burning smell and no motor action.

All three of these machines have had new brushes fitted within the past two months, two of the within the past three weeks.

Is anyone else experiencing this?

Jim.

[Penguin45]

Re: ISE 5 mk 1 motor failures

Yup, did my third last week.

Chris.

[derbyhoppy]

Re: ISE 5 mk 1 motor failures

Jim / Chris,

We have to be carefull what we describe as ‘epademic’. You two literally have got hundreds of machines out there some close to three years old. We have only used about 50 motors (plus some carbons) since we’ve started from 3000 plus MK1 machines in the market.

The mk1 machines are aging particularly in high use situations but overall we have consitsantly run at the 6{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} mark, they are all insurred and as promised from the start we pass you the work.

Where we have been caught out and for which we appologise is running short of spares. Sean has gained extra service contracts for Deltec (which is demanding all his time) we therefore have had no choice but to move parts ordering and depatch to Kilmarnock. While this transition was taking place we lost continuity of parts ordering, which has meant when we get a sudden flurry on one part we have been running out then scrambling arround trying to get them in.

Ken is very much on the case and we will soon be in a position where we are back to the smooth running parts supply we had with Sean in Anglesey

John

[iadom]

Re: ISE 5 mk 1 motor failures

OK, lets not call it an epidemic, not just yet anyway. 😉

Have a call tomorrow that had brushes fitted on 02/10/08. By the sound of the customers description of the fault the motor has given out on this one as well. 😥

Thats four motor failures in just over two weeks, all shortly after new brushes have been fitted.

I had two brush changes in one day this week. I fitted a set of genuine Hoover carbons from my own van stock to one and the HV12101/Masterpart carbons supplied by ISE HQ to the other one to see if it makes any difference.

At this rate more than 50{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of the machines I have fitted new carbons to have suffered motor failure soon afterwards.

Jim.

[iadom]

Re: ISE 5 mk 1 motor failures

And another one today, This one had new brushes fitted in October by Geoff Rolands whilst I was on holiday. The motor has not stopped running but the whine from the brushes is dreadful, customer thought she had something stuck in the drum.

I have replaced the brushes Geoff fitted with a pair of genuine Hoover 97916670 carbons from my own van stock. It did sound a little better but I fear this one will also be needing a new motor very shortly.

Would it be possible to supply the gen Hoover brushes or a better alternative to the Masterpart HV12101 carbons, they seem to wear away in no time at all. 😥

Jim.

PS. 5 in two weeks, a localised outbreak then. 😉

[iadom]

Re: ISE 5 mk 1 motor failures

Yes, you’ve guessed it, yet another ‘local difficulty, spate, coincidence, blip, mild rash’ , epidemic call it what you will. :rolls:

Brushes fitted 07/12/08…. today it tripped the RCD when on spin, armature burnt out.

Now six motor failures after recent brush change in under 3 weeks. 😥

Jim.

[kwatt]

Re: ISE 5 mk 1 motor failures

Seriously Jim…

We’ve really not used that many. Given that there are what, 2500 machines out there, you’ll be lucky if we get requests for ten a month usually.

I’m hoping that stock will be back in soon and I’ve over-ordered on them deliberately.

K.

[iadom]

Re: ISE 5 mk 1 motor failures

My real concern is that this problem is likely to escalate as these machines age.

Another problem for me is that four of the six motor failures after recent brush changes were on machines with a 1+5 contract. There is no way I can charge my customers again within three to five weeks to rectify what is basically the same fault, so four or possibly even eight non paying visits if you allow for the second call to find the motor faulty and the third to return later with a new motor.

I will be very wary of fitting new brushes, gen Hoover or otherwise to any other ISE5’s on 1+5 contracts in the future with worn brushes.

I get embarrassed asking for another job sheet and new motor within weeks of doing a brush repair on 5+5 contracts as it is. 😳

Jim.

[kwatt]

Re: ISE 5 mk 1 motor failures

Is the comm rough on them at all Jim?

What’s burning out, is it the brushes?

I’m trying to understand as many people seem to stick in brushes and it’s fine, some wont’ change carbs and insist on changing the motor (hence we ran out of the damn things) and then there’s yours where changing the carbs has failed.

I’d love to crack the problem. 😉

K.

[iadom]

Re: ISE 5 mk 1 motor failures

I still have at least five of the displaced motors. I will keep them all and bring them to the next meeting. In most cases the comm shows signs of serious arcing and at least three have cooked the armature with the plastic sheathing melting and falling out of the motor all over the floor.

On another two the new brushes have worn down completely after a few weeks.

Had it not been for the one last week that Geoff Rolands fitted brushes to whilst I was on holiday I would have begun to doubt myself but I do know that Chris has had exactly the same problems on more than one motor.

I always use a comm stick to clean up the comm first as well.

Jim.

[kwatt]

Re: ISE 5 mk 1 motor failures

It must be some dodgy motors then, I can’t think on anything else really.

Dunno and what I’m struggling to get my head around is why it’s just some and not all as well as the “runs” of them.

It’s the same with bearing failures and the motor bracket thing, it pops up with a few people that get a few, then dies again for months. It’s a bit odd really.

K.

[iadom]

Re: ISE 5 mk 1 motor failures

I did have a look at the serial numbers but there is no real correlation there. 😥

With one exception, all well used machines though.

Jim.

[kwatt]

Re: ISE 5 mk 1 motor failures

Is that perhaps the link, high useage?

If so it would explain a lot TBH.

K.

[bazza500]

Re: ISE 5 mk 1 motor failures

Jim when I am replacing brushes I fit the new metal brush holder into the old plastic holders(if you know what I mean) and I have only ever had 1 motor failure through burnt out armature and that was way back (and I can`t remember if I swapped holders then). It was just that once when I replaced the whole brushes and spun the motor it sounded dreadful and so I swapped to the old holder and it was much better. I`ve done this ever since.

Could it be that the Hoover brushes are at a slightly different angle to the ISE ones? and therefore causing excessive heat and noise?

[Del]

Re: ISE 5 mk 1 motor failures

Hi Baz

I think you might be on to something there because the carbon brush holders fitted on the actual motors have a right angled lip at the end that must hold the carbons at a set angle.

I did notice that when we had the actual genuine carbon brushes as a spare part from the manufacturer they came without this lip ie very similar to the hoover ones we use now.

Jim as you see more of these machines than anyone else could you give Baz’s idea a try and report back please.

Sean

[Author]

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