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  1. #31
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    Yep I can hang five(even ten) till Monday

    Cheers
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  2. #32
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    Default Electric Brake Installation

    Well, have got to the stage of putting the brake hubs and wheel hubs on. Fitted the first one last night and perpared the second but didn't proceed with it as I am not sure that the first one looks right. See the photos.

    The gap between the back of the wheel hub and the back plate of the brake hub seems a bit big to me or is this how it should be

    Attachment 194394

    Attachment 194395

    And here are some pics of overall progress. She is still up side down but I figure another week or so in this position will see everything in place and I shouldn't have to get under there for any major issues for quite some time. I have taken the time to strip back the metal, apply rust converter where necessary, prime and then add two top coats as in my experience the a---(bottom) is the first thing to drop out of a trailer.

    Attachment 194396

    The new long stronger draw bar
    Attachment 194397

    Attachment 194398
    Last edited by Tassie Tiger; 12th Jan 2012 at 08:12 AM. Reason: Typos
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  3. #33
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    Quote Originally Posted by Tassie Tiger View Post
    The gap between the back of the wheel hub and the back plate of the brake hub seems a bit big to me or is this how it should be
    Looks a bit big to me too but it's a bit hard to tell from the pic. I have the axles out of mine at the moment and the backing plate overlaps the edge of the drum by about 5mm. The backing plate flanges have been welded on 20mm from egde of seal journal.
    Dan

  4. #34
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    Yonnee is offline Trailer Bloke & Mild Mannered Moderator
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    It could be the machining of the drum, or the pressing of the backing plate (you just don't know with Chinese copies), however, the critical thing is the distance of the magnet face to magnet, and there's a fair bit of mucking around to measure whether this is right. I would start by contacting the supplier and find out what setback measurements the weld mount is supposed to have for the products they supply.
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  5. #35
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    Mmmmmm........I think it is a bit late to worry about where the backing plate is meant to be fact is they are welded on the axle 22 mm from the edge of the journal (see previous posts) and the axle is attached to the trailer etc etc etc.

    What do I need to do to measure the distance to the magnet? Another alternative may be to wait till I have the controller installed in the tow vehicle and plug it in and see if the brakes work Hoping to get the controller installed this weekend so will leave the trailer upside down till then.
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  6. #36
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    Default Electric Brake Wiring

    Ok, the trailer is now facing right way up after a late night last night. Pics to follow once I wake up a bit more

    My questions are:

    1. Is there any reason why the wiring from the electric brake hubs on the trailer cannot be connected to the tow vehicle via a seperate plug rather than going through the standard 7 pin trailer connector plug? I am thinking perhaps an anderson plug to connect the brakes to the vehicle See diagram below.

    Reason - there ain't enough room in the little brass fittings on the standard plug to put the 6mm brake wiring

    2. Is there any reason why the earth wire from the electric brake hubs on the trailer cannot be earthed by a short run of wire from the proposed second connector on the back of the vehicle to the chassis in that area or does it have to go all the way to the vehicle battery? See diagram below.

    3. Does it matter what size anderson plug I use eg. I have some 50amp ones left over from a dual battery set up


    Attachment 195358

    You have to forgive my ignorance on any of this as I probably know just enough about 12v wiring to get myself into real trouble

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  7. #37
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    A 7 pin large plug and socket would accept the 6mm^2 wire.

    Large Round - Products - Narva

    Using chassis as an earth would probably work as long as there is a solid connection from battery to chassis at other end. Battery direct to trailer socket may offer more reliability.
    Dan

  8. #38
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    Yonnee is offline Trailer Bloke & Mild Mannered Moderator
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    Quote Originally Posted by Tassie Tiger View Post
    My questions are:

    1. Is there any reason why the wiring from the electric brake hubs on the trailer cannot be connected to the tow vehicle via a seperate plug rather than going through the standard 7 pin trailer connector plug? I am thinking perhaps an anderson plug to connect the brakes to the vehicle
    Reason - there ain't enough room in the little brass fittings on the standard plug to put the 6mm brake wiring
    The only reason would compatability with other vehicles. If someone borrowed your trailer that had a controller fitted, still wouldn't have brakes as they wouldn't have your Anderson plug setup. Similarly, if you borrowed another trailer/caravan with electric brakes, or even just moved it for someone, you also wouldn't have brakes working as the setup would be different.

    2. Is there any reason why the earth wire from the electric brake hubs on the trailer cannot be earthed by a short run of wire from the proposed second connector on the back of the vehicle to the chassis in that area or does it have to go all the way to the vehicle battery?
    No. A good earth connection on the towing vehicle is just as good as, if not better, than running a wire all the way back to the battery.

    3. Does it matter what size anderson plug I use eg. I have some 50amp ones left over from a dual battery set up
    Anything over 20 amps will suffice. But I personally wouldn't go this way as it would limit my options for towing different trailers fitted with electric brakes. The large 7pin round from some companies should take a 6mm cable, but you wont get it into a 7pin flat. 6mm is a fairly big cable to need to run electric brakes. 4mm is usually plenty, particularly for single axle.
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  9. #39
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    Ok thanks for that Yonnee. Looks like large 7 pin round might be the way to go with a flat to round adaptor for towing other trailers that have 7 pin flat plugs of which we have two.
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  10. #40
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    It's a bit of a Catch 22. Ideally, the 7 pin flat is supposed to have become the Australian Standard, along with the 12 pin flat plug, but none of the flat plugs can take much bigger than a 4mm wire. I've got both a large 7pin round as well as a 12pin flat on the back of my Pajero so I don't have to worry about an adaptor.
    Too many projects, so little time, even less money!
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  11. #41
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    I found my trailer adaptor this arvo and took the round end apart to see if the new 6mm wire on the trailer for the brakes would fit in the ports. It does So looks like a 7 pin large round and connector combined with the adaptor I already have will be the best combination that will allow me to tow the other trailers that have the 7 pin flat plug.
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  12. #42
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    Quote Originally Posted by Yonnee View Post
    Ideally, the 7 pin flat is supposed to have become the Australian Standard, along with the 12 pin flat plug..........
    Is that right?
    I never knew that.
    How interesting.

    Jim
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  13. #43
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    Here are those pics I promised on Saturday.


    New led lights, Alko support legs, the spare wheel bracket moved from the front tailgate to the rear.

    Attachment 195744

    New coupling, hand brake and safety chains and thanks to Yonnee for the idea of putting some hooks on to hold the chains when not in use.

    Attachment 195745

    Attachment 195746

    And, here is how she looks with the new longer draw bar. The canopy is in the background stripped and ready for a repaint.

    Attachment 195747

    Next job strip the paint off the trailer and repaint then the fitting out starts
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  14. #44
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    Love the drawbar.
    That's going to be so easy to reverse.

    Jim
    Being happy doesn't mean everything is perfect. It means you've decided to see beyond the imperfections....

  15. #45
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    Yes Jim that is another one to credit to Yonnee
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