'87 W124 SLS pump ran dry ??

Just got a sweet deal (I hope) on an '87 W124 300TD wagon. The SLS pump went dry a year ago, so I'm assuming I can just replace the pump, fix the leak and the system will work again, as it worked before it went dry? Or does further deterioration occur besides the pump when it runs dry?

I shall definitely buy the guide after I have the car.

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