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24 May 2017
After years of running this site, I have now gone to The Dark Side. This web site will continue, but I really need someone new to take over.
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Fire away with any questions that you may have re the Dandy Trailer tent , folding camper
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TOPIC: Suspension checks

Suspension checks 2 years 2 months ago #1503

  • pumps100
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Good point. What has always intrigued me is suspension ratings eg. 500kg split over two units. Surely the span between the units must have a significant impact on the rating.

My Delta has the wheels outside of the main trailer body. Many trailers you see on the road have inboard wheels and the span is accordingly reduced.

Ian

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Suspension checks 2 years 2 months ago #1504

  • Brianlec
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Provided the units are designed properly, the span shouldn't matter. The chassis should be strong enough to cope.
As it happens, my trailer has outboard wheels, the Dandy 5 has inboard, but I would say the distance between the wheels is similar, the Dandy body being wider.

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Brian.

Suspension checks 2 years 1 month ago #1550

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Well it's just as well I didn't rush out and buy new suspension units. I did make up some spacers to raise the trailer by about 1 inch, but when I got under the Dandy, I discovered the units had 8 bolts, not 6, so clearly the suspension has already been upgraded to the 750Kg.
This means my spacers won't work either.
The good news is that the units look good, both trailing arms point down at about 4 o'clock/8 o'clock (depending on which side) with the weight of the trailer on them.
I did reduce the raised tow hitch from 100mm to 50mm, with the height of my tow hitch, the jockey wheel was too close to the ground, and the trailer was tail up when towing. It's now marginally tail down, but when I can add a spacer on the suspension that should improve.
Old 1drv.ms/i/s!Alcd8MzUSAA-tElwBTPUbXY6vznj
New 1drv.ms/i/s!Alcd8MzUSAA-tEvYIEMZaZRy0lJf

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Brian.

Suspension checks 2 years 1 month ago #1552

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OK I'm now getting confused. Just looked at the Knott Avonride website. Their 750Kg units do have 8bolts, but they are 12mm. Also the spacing is 73mm. My units have 8mm bolts and I'm sure I measured the spacing to be the same as the spacer I had made for the assumed 500Kg units - 76mm.

Does anyone have an idea which units I do have? The mounting plate dimensions were 255x100mm.

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Brian.

Suspension checks 2 years 1 month ago #1553

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Well I think I may have found the answer.
They are the same dimensions as these units. www.autow.com/trailer-parts/trailer-susp...-units-braked/BB0500

And I see they supply the mounting plates too, ideal to make spacers. They are actually 254x102mm, but I didn't measure that accurately.

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Suspension checks 1 year 6 months ago #1630

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Well I can confirm these units are correct for the older models. I also added a spacer of about 30mm between the unit and chassis.

Tow hitch height. I note the EU directive on tow hitch height says it must be between 385 & 455mm, which makes the Dandy very low as specified. The standard for tow ball height is between 350 & 420mm with the vehicle "laden". This is to ensure the trailer tows nose down for stability. Clearly the dandy will always be nose up on a standard European spec car. Hopefully the later models are higher.

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