Andy

Avionic does not have a "jacked ramp". The cradle has an over center
cam that lifts the aircraft off its main wheel. Agreed, the jack would
be better for rigging purposes.

The belt can be seen and inspected through it s length. The center
portion of the mast is enclosed trapping the belt within by some mid
shaft cross sectional enclosings. I can only assume this is one of
those fiberglass impregnated toothed belts they use in cars that last
60k miles.

My guess would be you send the mast back to be opened and reclosed or
you buy a new one.....

Mark