Portable Woodmizer On Concrete Slab

[Pepe_Silvia]

In the manual, they advice against putting the mill on concrete:

The jacks supplied with portable sawmills are not intended for setup on concrete or other hard surfaces. Long-term use of the jacks on hard surfaces may cause the jacks to fail causing the sawmill to drop resulting in possible serious injury or death. If setting the sawmill up on concrete or other hard surface replace the jacks with stationary legs.

I thought it would be nice to have the mill on firm, dry ground.  Is there anything I can do to mitigate the risk of jack failure?  Rubber bumpers under the jacks perhaps?  Or is their recommendation generally ignored?

[PoginyHill]

I'm not a mill owner myself, but I'm guessing the potential problem is that shock loading (i.e. dropping a log on it) and fatigue are much greater with no "give" on the feet. I've seen others put a 6X6 on the concrete and mount the mill to the wood. That would provide enough absorption of shock loads.

[Stephen1]

I place my mill on ashphalt all the time. I wonder if that is the same problem?