In all cases you start with the caravan standing on 3 points – the main wheels and jockey wheel with the nose below horizontal. If you cannot get the nose below horizontal you are going to fight the jockey wheel and you’re going to have a hard time. You must be able to lower the jockey wheel enough to get the nose low, or choose a different way to park.
You then extend the front steadies until they both touch the ground – and then continue to extend them evenly until the caravan is level in the front-to-back, or longitudinal, plane. You can use the built-in ammeter on the screen as well as the motor sound to estimate equal loading of the motors. The motor current is electronically limited to 25A so as not to overstress anything.
With the phone lying on a table and aligned with the length of the caravan you will see the caravan is level in the longitudinal axis and the longitudinal cross hairs will look like this:
The longitudinal axis will now be centred and level but the lateral axis will show an error either to the left or the right. In this case the left side is low, since the top of the phone points to the front of the caravan.
You now extend the rear steadies until they both touch the ground lightly.
Using the same principles of equalising as above you now extend the 2 steadies on the lower side until the lateral cross hair shows zero error.
At no stage was any twisting force applied to the chassis, and the wheels still carry as much of the weight as possible. If you are using very low-powered steadies you may find that you have to lift the low-side wheel by some other means, like a jack or some kind of wheel ramp that you see all over the Internet. Our motors can lift about 250Kgs each, which is enough for most applications.
If you had started with the nose high because the jockey wheel would not go any lower you would have had to lift much of the weight off the wheels by raising the rear with the steadies alone. This is a bad idea – better to start with a parking where the nose is low.