Wednesday, Mar 12, 2014 at 08:27
The levity is quite OK by me Rosco, I need a little cheering up at this juncture.
No offence taken Axle.
Before fitting the new magnets I adjusted the brakes, no better.
After fitting the new magnets I adjusted the original shoes again, no better.
Fitted new shoes and adjusted the brakes, no better.
Spoke to my grand nephew who is an apprentice mechanic and asked if he knew much about electric brakes, he replied that they had a horse float in about 2 weeks ago with the same problem and changed everything including the wiring but not the drums. In desperation they changed the drums and bingo, brakes worked.
The drums were worn that far that the magnet could no longer reach the contact face on the drums adequately so brakes were inefficient.
So that was another avenue for me to follow only in my case no change in outcome.
Brakes adjusted, readjusted and readjusted again at every turn.
I will outline what I have found at the end of all of this one way or the other as there are many out there that will come across this problem at some point and the information will be relevant.
One thing is very clear so far.
If replacing your brake shoes in an electric brake setup it is advisable to change your drums as
well as the magnets and drums wear out over time. This was the case in the horse float saga.
My drums were
well worn although not to a point where they would not have worked, in my opinion.
Now the main observation here is that if changing shoes and drums,
"buy the lot as a complete kit as it is a lot cheaper than buying individual items. A kit comprises 'Backing plate, full mechanisms, shoes, magnets and drums all fitted together' These can be had for $100 per wheel whereas the way I went it has cost me around $180 per wheel.
In fact I would suggest that, given the wear factor between magnets and drums it should be a full replacement after a certain period of time or use. The heavier the van the more frequent the change over. This has been my observation.
Cheers, Bruce.
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