Electric Trailer Brake problems
Submitted: Monday, Jun 13, 2005 at 17:17
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Member - Nissan Gnome
Having just run over some fairly rough roads - Dalhousie to Mt Dare etc the camper trailer brake wiring (which was cable tied to the axle) was knocked off by the constant battering of rocks etc. So were a number of other things including the
water tank connection, some lights and reflectors.
With some help from
John at the
William Creek Hotel (great bloke) I re connected the wires and re cable tied them inside some rubber tube for more protection. My question is:
Can anyone suggest a way to protect those two single insulated wires as they go into the brake drums etc, as I can see they will cop a bit more of a pasting next rocky road we travel on?
Is there any polarity on the two wires going into the brake drum? They were both the same colour so I took a punt and they seemed to work OK, but I would like to know for sure.
Any advice much appreciated.
Reply By: HeyDad - Monday, Jun 13, 2005 at 21:15
Monday, Jun 13, 2005 at 21:15
Re: Polarity,
No the polarity makes no difference. All that happens is that the current flow produces a magnetic effect thus it is attracted to the rotating drum and whella, the brake is applied.
As for protecting the cable cores, If the cables are run the the centre of the axle where travel is minimal then up to the floor chassis in hose etc, just allow enough for the full travel of the axle, 2" from unloaded would be sufficient in most cases.
Check it by jacking the chassis until the axle hangs.
Regards
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