Power steering leak

[Peter Jackson]

The clamp on the reservoir end of the low pressure hose running to the
pump loosened up. It sprayed fluid into the engine bay.

I tightened the clamp, it doesn't leak now. The fluid level shows Min. I
haven't added any new fluid.

Would there be any ill effects to the pump or rack from running in a
semi-pressureized  state?

I would like to change the fluid, but don't see a drain procedure in the
FSM. Is it worth the effort or should I just top it off?

Peter J 96 SE-R