Thor Forums

[Chateau_Nomad]

If ALL FOUR JACKS are in solid contact with the ground, AND you're not sitting on a steep hillside, the coach isn't going anywhere. The jacks should be rated to lift the weight of the coach.

With the coach lifted and the jacks fully extended, if wind or a person using reasonable lateral force could push the coach over (breaking the jack welds), the jacks are either severely underrated for the application, or the welding during jack installation was inferior.

That said, use COMMON SENSE! The e-brake should be set securing the rear wheels BEFORE any lifting. The front jacks should come down to SOLID ground contact first WITHOUT lifting the fronts off the ground. Then the rear jacks can be lowered. Once the rear jacks are in solid ground contact... the coach SHOULD be stable... and the jacks SHOULD be capable of lifting the coach as much as necessary.

I've seen beachfront homes on stilts that even a hurricane couldn't blow over. Properly rated hydraulic jacks, PROPERLY installed on an RV should be no different.