"C J Campbell" wrote in message
...
It actually does not pump it all out, as the intake for the pump is high
enough to leave a small reservoir to be used by the emergency extension
lever.

Fine. However, as soon as you start using the manual pump, you will still
wind up pumping the fluid out.

My main point is that it is not necessary to have a leak at the bottom of
the sump in order to lose all the hydraulic fluid.

Pete