Electric brakes on caravan

Submitted: Friday, Mar 20, 2009 at 17:21
ThreadID: 67014 Views:2036 Replies:5 FollowUps:2
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Hi guys has anyone had any experience with the wires fixed to the magniets of the Alco electric brakes sheraring off, my van is relativley new and both magets on the near side tandem brakes have sheared the connecting wires,have done any offroad for it to catch or anything . Could be lousy fitting perhaps????

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Reply By: Outbackogre - Friday, Mar 20, 2009 at 17:52

Friday, Mar 20, 2009 at 17:52
Andrew, if relatively new means 'within warranty' I'd get it fixed by the dealer. If it's out of warranty, check if the dealer is aware of a problem. I've had a magnet wire 'appear' like it's still attached; in fact it was only being held in place by a bit of silicon, and there was no electrical connection. The give away was the fact that the 'good' wheel kept locking up under brakes. The wires cop a lot of vibration. Usually they are cable tied within the hub to provide some support. Is this the case with yours? Rob.
AnswerID: 355169

Reply By: MEMBER - Darian (SA) - Friday, Mar 20, 2009 at 18:25

Friday, Mar 20, 2009 at 18:25
Sounds odd - my independent suspenion camper has ALKO electrics - I recently installed new magnets - as for the original setup - the twin green wires come in to the back of the hub from a short, HD poly tube of some sort that exits the suspension arm nearby - no chance of snagging there - then the twin wires enter the hub high at the rear, through a hole that has a special plug in it - once snapped in place, the wires are very secure while being shielded from nearby metal - then the wires enter some heat shielding tube of some sort for the swing around and down to the magnet.... that heat shielding tube is secured to an upper cross spring, to keep the wiring away from the moving hardware in there. At least you can reconnect the magnets with the remaining wire - new HD magnets are around $125 each.

AnswerID: 355178

Follow Up By: ob - Friday, Mar 20, 2009 at 18:35

Friday, Mar 20, 2009 at 18:35
Do you mind me asking why you had to replace the electro magnets? Do they loose their ability to work for some reason after a while?

Cheers ob
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Follow Up By: MEMBER - Darian (SA) - Friday, Mar 20, 2009 at 18:58

Friday, Mar 20, 2009 at 18:58
The small wear indicating holes on the magnets suggested that they had some life left in them, but the Prodigy controller started indicating a short in the circuitry. Checked the whole system out as far as I could and found nothing - rang a brake specialist who has done work for me before and he suggested that they can get a 'fractured wire within the magnet'. I figured 4 years service was more than many magnets provide (I'm told) so in the new ones went - the Prodigy is happy now :-o).
FollowupID: 623237

Reply By: Baz&Pud (Tassie) - Friday, Mar 20, 2009 at 20:39

Friday, Mar 20, 2009 at 20:39
Our van has done some 40,000 ks, some of which has been on some terrible roads, ie GRR, and when we returned from West Oz last year we felt that the combination wasn't pulling up like it should, we new the truck was fine so decided to have a look at the van.
The off side front wasn't working at all, and the one behind that was only just, and the problem as far as we can see was caused by broken wires ( within the plastic cover) at the magnet which we can only put down to the continual vibrations on rough roads.
Only today have i replaced all magnets, and the brakes are now fine.
Go caravaning, life is so much shorter than death.

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AnswerID: 355203

Reply By: Member - Bucky, the "Mexican"- Saturday, Mar 21, 2009 at 06:10

Saturday, Mar 21, 2009 at 06:10

I have done one side, on my camper, but It could have been my fault, when I did the bearings, after our last big trip.

The wire sheered of at the magnet, and could not be fixed, so It was new "off road "magnets for the camper ..(as I should)

Am wondering if the same wasn't done to the van when it was originally set up ....????????

Problem is proving it

By the way I sent you an email earlier, if you need some tips, and repairs..
AnswerID: 355262

Reply By: Member - Andrew J (VIC) - Saturday, Mar 21, 2009 at 09:49

Saturday, Mar 21, 2009 at 09:49
Hi guys thanks for the followup on the ALKO brakes.sounds like the setups are all wrong when they are fitted I will contact Alko direct in the next couple of days and see what they have to say about it.Will get back with their reply.

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