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Old 13 April 2013, 10:34   #1
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Trailer Brakes

Well, the forecast for this weekend was rubbish, and looking at the trailer I don't think that I will be going any further this week-end.
However, yesterday I pulled the boat out of the quagmire that is my front garden and towed the boat down the motorway. On my way to Biff's gaff I noticed the wheels getting slightly warmer than they should be - uh time for the annual brake overhaul
So my mind turned to boat trailer brakes, and how I hate having to replace brake cables, shoes etc. Surely there is a better way than dunking bowden cables, even stainless ones, and mild steel bits into the briny where they can return to an oxidised mess.
I've seen, and helped launch from Jim's (Bedajim) magnificent trailer with built in launching trolley, where the road wheels are just that, kept on dry land I've heard the stories about trailer disc brakes; that they have not been a success over here as our sea water is more than they can take, and so we are left with mild steel shoes, drums etc that are so last century
Surely there must be a better commercially available solution, one engineered for the environment that they sometimes experience - salt water! Don't get me wrong, I replace the brake bits every year, but knackered rusty bits offend me (and I am also slightly lazy!).
Having thought about it, whilst driving along the M27, it seems to me that there are two approaches, either come up with a launching system that does not get the road wheels dunked, or come up with a brake system that can withstand being dunked almost indefinately.
My thoughts on the first were either a system such as Jim fabricated, or is a system of individual launching wheels possible for a 2 ton RIB?
The grey matter then turned to braking systems that get dunked, is an all stainless system available, which does not use bowden cables in the actuator? I think that it would need to be 'agricultural', as close tolerances could be an issue. What about the brake material, would it and the bonding withstand immersion indefinately? Is an all stainless push or pull rod system that would allow suspension movement available?
So there you have it, my journey up the M27, as that is as far as I got before the Swanwick turn off.
Has the collective seen a solution that I can afford on my pittance of a salary? Or is someone beavering away on an answer to my prayers
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Old 13 April 2013, 11:15   #2
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[cynical mode]
which trailer part manufacturer is going to supply parts which last 10 yrs rather than 1 and loose the recurring revenues; afterall it will cost more to make, and you will be lucky to get the punter to pay double for it never mind 10x...[/cynical mode]

I have never seen anyone suggest something road legal, low maintainence, reliable, and affordable. Dry stack, Bedajim type solutions etc are probably your best bet if you have enough to fix a problem that most people manage to live with.
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Old 13 April 2013, 13:56   #3
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or is a system of individual launching wheels possible for a 2 ton RIB?
Did this for the RNLI (used bronze bushes instead of bearings - nothing to collapse)

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I've seen, and helped launch from Jim's (Bedajim) magnificent trailer with built in launching trolley
Absolutely love his idea and design

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Originally Posted by Ian M View Post
I've heard the stories about trailer disc brakes; that they have not been a success over here as our sea water is more than they can take, and so we are left with mild steel shoes, drums etc that are so last century
Fully agree

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Or is someone beavering away on an answer to my prayers
Yup, me. Oh, and Jeepster IIRC


However, Poly the cinic is probably correct. It's a while away I reckon. Especially now with EU type approval (it's 2000 just to register the paperwork....)
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Old 13 April 2013, 14:32   #4
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Yup, me. Oh, and Jeepster IIRC
Do tell
If I was going to develop a solution I think I would go for a mechanically actuated all stainless disc brake system. Maybe
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Old 13 April 2013, 16:02   #5
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If you are interested Emilios Trailers
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Old 13 April 2013, 16:31   #6
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Weeeell, as I will be in Greece July/August....................
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Old 13 April 2013, 16:37   #7
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Oooh, nice looking trailer. Good spec and EU type approved too. Lovely. Imagine they're a pretty penny too, but worth it no doubt. Kodiac brakes are from the US, so I'm sure they're up to scratch and way ahead of the offerings currently out in the UK.

Wonder how the auto reverse system works. I was going to pull my feed from the reverse light, so 13pin elecs would be necessary.
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Old 13 April 2013, 22:48   #8
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Auto-reverse for disk brakes works off the back-up lights. It opens a solenoid within the actuator that closes off the brake lines so pressure isn't transmitted to the calipers.

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Old 14 April 2013, 02:36   #9
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Just googling Kodiac brakes and picking one of the first pages at random, looks like you can get full stainless kits including hubs with discs, calipers and mounting brackets for $750 (500)

Kodiak Disc Brake Kits | Pacifictrailers.com

which as I'm looking at about 320 for a pair of stainless discs (never mind calipers) for a motorbike at present - or given standard ALKO mild steel trailer hubs are what, 100-150 a side - seems pretty reasonable. So why hasn't this sort of kit comes into use over here? Seems hard to believe our side of the Atlantic is materially saltier than theirs!
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Old 14 April 2013, 04:04   #10
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Just googling Kodiac brakes and picking one of the first pages at random, looks like you can get full stainless kits including hubs with discs, calipers and mounting brackets for $750 (500)

Kodiak Disc Brake Kits | Pacifictrailers.com

which as I'm looking at about 320 for a pair of stainless discs (never mind calipers) for a motorbike at present - or given standard ALKO mild steel trailer hubs are what, 100-150 a side - seems pretty reasonable. So why hasn't this sort of kit comes into use over here? Seems hard to believe our side of the Atlantic is materially saltier than theirs!
Well, I'm not expert in these, so prepared to have my thinking improved, BUT these look like axle kits only. You have still got to get the actuator mechanism, presumably part of the coupling?
Additionally, these look like a piston in caliper arrangement, which I am told, is the reason they do not last long in salt water - even manufactured in stainless, and with the necessary close tolerances, they soon become US.
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