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Old 26 March 2012, 12:12   #1
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Docking arms fractured... thoughts please

Bought a new pair of docking arms in Jan and only used three times found this after noticing that the arm was moving about on motorway!

Faulty weld? Opinions please as dealer already suggesting they have been hit by the boat!!!!!!

Photos of the arms leaning against the trailer after removal.

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Old 26 March 2012, 12:42   #2
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There's no weld where your finger is in pic 2. Looks like it's not as beefy as is should be and looking at picture 3 it looks like there's not enought weld penetration which is what has started the fracture.

I would have to say that they aren't really fit for purpose as they're going to take the odd knock or two whilst recovery.

Send em back and get them to either beef them up with by welding a fillet in or get your money back and buy some decent ones.
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Old 26 March 2012, 12:45   #3
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Thought they were decent as purchased from a very well known dealer and not cheap!

Taking them to one of their depots tomorrow, will see what they have to say face to face.
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Old 26 March 2012, 13:19   #4
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If I am looking at the picture correctly, it looks as though the arms are cracking from the outside, inwards towards the boat, rather than away from it, which would make it unlikely to have been caused by the boat levering on it, whilst getting on the trailer?
Not much thought gone into drilling the hole for the galvanising process, it has weakened it quite badly. Doesn't look very well thought out or constructed.
They haven't even bothered to de burr the box section before galvanising.
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Old 26 March 2012, 13:53   #5
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Quote:
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Opinions please as dealer already suggesting they have been hit by the boat!!!!!!
They probably have! Why else would anyone fit them? The dealer must be stupid if that's his only argument.
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Old 26 March 2012, 14:12   #6
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Definitely started by the pigeon shit welding on there.
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Old 26 March 2012, 15:13   #7
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The back hasn't been welded and the 2 sides have got a drain/vent hole right where the weld is. End result is nowhere near enough meat to hold it together :roll eyes:

If the manufacturer hadn't been so lazy he would've done it the correct way which in this case would be a 45 mitred joint. That way it'd be welded all round and no need for vent holes as the hot dip galv could vent out the 2 ends of the box section.

Docking arms broke because a boat hit them?? Some people need a slap occasionally...
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Old 26 March 2012, 17:11   #8
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Thank all, just glad I noticed it, dread to think of the consequences of the arm detatching on a motorway.
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Old 26 March 2012, 17:21   #9
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Thank all, just glad I noticed it, dread to think of the consequences of the arm detatching on a motorway.
I think I'd be making that point to the dealer too, along with quite how much his liability for selling a faulty product would be if it killed someone.
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Old 27 March 2012, 05:47   #10
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I think I've a good idea of who built these and the company you bought them from. If you don't get any joy at the depot give me a shout as I've got their national marine sales manager's mobile number...

(who's a particularly top chap btw, keen boater and doubtless will help)

all the best
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