Re: Leaves on Melbourne tracks
  Mick Duncan

Gday Noel

On 25/05/2017 7:54 PM, 'Noel Reed'noelreed10@... [TramsDownUnder] wrote:
>

>

> Hi Mick,

>

> Could the brake pressures on opposite wheels be checked and the adjustment corrected until they are equal ?

>

> No, due to wear in the rigging, nearly impossible

>

> If unequal wheel diameters are suspected, can the diameters be checked during servicing so that the larger diameter wheel can have another day’s use with the abrasive brake blocks ?

>


Yes, but if you put the abrasive block on the other wheel for too long
then you are back to where you started

Ordinary brake blocks can cause wheels to get unequall dia, but much
more slowly, AFAIK, in Melb 1/8" was the limit

Grinders and wheel lathes are best

Cheers, Mick
>

> Noel Reed.

>

> *From:*TramsDownUnder@yahoogroups.com [mailto:TramsDownUnder@yahoogroups.com]

> *Sent:* Thursday, 25 May 2017 7:08 PM

> *To:*TramsDownUnder@...

> *Subject:* Re: [TramsDownUnder] Leaves on Melbourne tracks

>

> Gday Richard, All

>

> The problem with using abrasive brake blocks to get rid of flats is that

> the brake pressure on each wheel is rarely the same and therefore unequall

> wheel dia will result on the same axle

>

> Cheers, Mick

>

> On 23/05/2017 2:34 PM, Richard Youltressteleg@... mailto:tressteleg@yahoo.com.au [TramsDownUnder] wrote:

>

> A friend whose grandfather worked at ?Waverley Depot in Sydney

> said that this is a job he did.

>

> South Melbourne depot around 1990 got a batch of 'Ferrodo' brake

> shoes with a layer of carborundum glued to the face of the shoes.

>

> The experiment can't have been a success because no more were seen.

>

> Nevertheless those composition brake should would very slowly

> grind away minor flats, but not during just one shift.

>

> Regards,

>

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