How much does the levelling kit take from the caravan's payload capacity?
The usable payload capacity of a caravan is the difference between the maximum laden mass on the plate and the mass in running order. Every piece of equipment fitted afterwards - including the 4 electric jacks, the ASX103 brain, the GRV485 control unit and the cables - comes out of that share. A detailed weight breakdown of the KTS200 kit is not published item by item on the product page.
The logic of the calculation is simple:
Usable payload = Maximum laden mass - Mass in running order
This difference is the single pool shared by belongings, water, gas and all equipment fitted afterwards. Once fitted, the levelling kit permanently increases the unladen mass; that is, the amount of goods you can carry each time is reduced by that much.
Practical approach:
- After installation, weigh the caravan laden on a weighbridge. Real measurement is the most accurate method rather than estimating from catalogue figures.
- Axle load and noseweight are separate quantities; check them separately.
- Since the jacks are spread over the front and rear areas of the chassis, they also shift the centre of gravity; on a towed caravan in particular, measure the noseweight again.
Exceeding the maximum laden mass is not only a technical but a legal problem; it creates risk in terms of insurance and the manufacturer's warranty. For definite information about fitting the kit to your caravan and its weight effect, consult your caravan manufacturer or an authorised project engineer.
Full coverage of the topic: How to choose levelling jack capacity