The Low Cantilever Mast with Elevated Substructure can be raised or lowered without having to remove the diagonal braces when:

*Either the rear and front floors are up or down.

**Or both the rear and front floors are up or down.

The rear and front floors can be raised by using the same sling line that is used for raising and lowering the mast. The main purpose of this new design concept is to minimize moving and rig-up times no longer making transportation limitations a factor. Less rig-up is less hazard, more profit and performance for the customer.