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PookyBex

Detachable tow bar

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Hi all I have a witter detachable towbar on my new (to me) Hyundai Sante Fe 2.2 2011 , my van sits very ‘nose down’  on it

i had a Hyundai Tucson previously and it sat lovely on that (fixed towbar) , I have found a (possible) linger necked towbar but although it looks exactly the same fitting with keys etc, the part numbers are very slightly different. Mine is a 2039  art 30885 the other being 2030 art 30585 

can anybody tell me if these are interchangeable 

thanks 

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I have not got the answer you want. Witter do 2 types of detachable fittings, the one like you & I have, also a flanged version. I don't know any dimensions, but what you need to work out is it any difference in height of the 'swan'. Never fitted one, but if you have a flanged type there is a plate you can fit to adjust the height of the ball!

https://www.towsure.com/towball-drop-plate-3-inch 

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A drop plate should not be used to raise a tow ball.

  • I agree completely 1

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Why?

 

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AFAIK you can't change the detachable part due to Type Approval.

 

My 2011 Santa Fe, with self-levelling suspension and Witter detachable ensured the caravan was marginally nose-down, as it should be - so, first of all check your caravan's noseweight as it's limited to 80 kg if the Santa Fe is automatic or 100 kg if it's manual transmission.

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18 minutes ago, David P said:

Why?

 

 

It places additional stresses on the tow bar that it wasnt designed to take or type approved for.

 

If you click on the further details link on page you linked to it confirms that plate shouldn't be used in that way.

 

 

Screenshot_20200210-200049_Chrome.jpg

Edited by The Happy Gnome
To add a bit.

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Just found a topic on this forum.

Towball Drop Plate And Its Uses. What If It Were A Lift Plate?

By philavan, April 27, 2012 in Towcar Talk.

I only wanted to know 'why':)

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3 minutes ago, David P said:

I only wanted to know 'why':)

 

I believe I clarified.

 

The fact the ball is now higher means the towbar (and the mountings) are subject to additional stresses that they were not designed to take.

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Thanks for that!

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I wonder if OP has checked the rear springs and dampers? Maybe spring helpers would raise the rear a little?

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What height is the towball from the ground? There is a fair bit of leeway, I think they should be between 350-420mm with the car loaded. 

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1 hour ago, David P said:
1 hour ago, The Happy Gnome said:

A drop plate should not be used to raise a tow ball.


 

Why?

 


Unless the tow bar has been specifically type approved for use with a drop plate then generally, modifying a tow bar by fitting a drop plate or  raising the tow ball is not legal...  As far as I am aware, this applies to all passenger carrying vehicles up to 3500 kg GVW registered on or after 1st August 1998.  (Car derived vans and commercial vehicles are exempt)

 

Quote

My tow ball is too high. What can I do?

As in the previous question, it may just be the trailer/caravan that is non-compliant. Measure and check both the tow ball and the trailer hitch height to identify where the problem lies.  In the case of EC type approved tow bars, there are limits as to what can be changed. Options include:

Use a different tow ball location (some vehicles have two or more different tow ball fixing heights).

 

Possibly use a drop plate. (Some tow bars are tested and EC type approved for use with drop plates, but not all.).

 

 

 

Can I use a ‘raiser plate’ to increase the tow ball height?

 

No, under no circumstances should you raise the height of your tow ball.

 

To do so could significantly increase the leverage on the

tow bar/tow ball interface. This could result in damage or failure of one of the towing system components. It would also almost certainly invalidate the EC approval of the tow bar.

It would also almost certainly invalidate the EC approval of the tow bar.
 

https://www.towbarexpress.co.uk/guide/tow ball-heights/



 

Quote

Can I Fit Drop Plate To An EC Type Approved Tow Bar?
Only if the tow bar has been submitted and tested for EC Type Approval using a 'drop plate'. Some Witter tow bars for 4WD off road vehicles have been tested in this way, e.g. Range Rover, Land Rover Discovery and Defender, the new Mitsubishi Shogun and Mercedes M Class. Your local Witter specialist will be pleased to advise you.

 

https://www.witter-towbars.co.uk/knowledge-hub/towbars#collapse_67

 

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