So I wrote to Power Gear and got these instructions back.
I have read the entire instruction sheet you supplied to recalibrate my Power Gear Leveling unit.
The one piece of information I did not have is whether there is a harness plugged into the auxiliary receptacle.
It appears this information is needed to complete the recalibration.
I took the cover off the control unit and
it does not look like the one pictured on the instruction sheet.

The compartment is dark and I could not use a flash as it wiped out the detail, but there appears to be screws to make adjustments. This is a close up of a label that appears to be a left/right adjustment?

and behind the wires there appears to be a label for a screw to adjust front to rear

This is what the control panel looks like.

Would you please advise me on how to proceed. I have done nothing as yet