stephena said:
Thanks all just checked the towbar plate and the witter website and It appears our towbar has a max nose weight of 210kg does this sound right? It brand new and wasnt cheap but this figure seems huge too.
Wow that is huge, and I suspect you have looked up the incorrect information.
There are two nose weight limits you need to know.
The first is hitch limit for your cars tow bar. Each make and model of car has its own limit which the car manufacture will specify.
The second nose weight limit is set by the caravan manufacture and is the maximum Vertical load the hitch can apply to the towing vehicle - Again you should check the limit for the caravan, but the majority of popular caravans are usually limited to 100Kg
These are both legal maximum LIMITS, so you must not exceed the lowest limit which ever it is.
Caravan nose weight will vary depending on how you load the caravan. The important thing is that it falls within the cars capability when it is towing. You adjust the nose weight by rearranging items inside the caravan.
The regulations require nose weight to be measured at the towing height. This means that both the car and the caravan must be loaded and ready to tow. This is important as car carries the nose weight, and it adds to the cars axle loads.
Obviously the greater the weight carried by the car the lower its suspension (and ball hitch) will ride, and this important because the nose weight of any trailer changes depending on how high from the ground the hitch rides.
So to measure the real nose weight:-
We will use a set of bathroom scales, a cut length of broom stickand a spice of wood to spread the load on the scales.
Set the car and hitched caravan on level (horizontal) Ground.
Make sure the car and caravan are loaded as if you are about to drive away, and don't forget that driver and passengers must be included.
Measure the height of the hitch from the ground and note it.
Un-hitch the caravan and chock the wheels.
Place the bathroom scales and piece of wood directly (vertically) under the cup of the ball hitch. Cut the broom stick so that the cup of the hitch is supported on the scales. The hitch must sit at the same height as previously measured.
With the hitch supported by the cut broom stick, make sure the jokey wheel and steadies are fully retracted then read the nose weight on the bathroom scales.
Currently there is no device on the market that will measure nose weight accurately, as none of them guarantee to maintain the working height of the hitch whilst the measurement is made.
As nose weight has legal limits, and as frequently we tend to work close to the limits inaccuracies could render you unwittingly illegal.