I'm sorry I'm a bit late with this post, this is actually my third attempt to make this post! First, my seven year old laptop which I have with me in my "Zweitwohnung" deided to strike while I was preparing to post on-line. I then decided to prepare the post off-line, but left the DSL modem connected, so that I could first of all remind myself, what had been discussed in the Thread (this old laptop has only one USB slot). Then, having written my post, I clicked on the tray symbol to disengage the modem. Unfortunately I hadn't saved my post and the laptop decided to reboot. So hopefully this will be third time lucky!
This Thread has opened my eyes to a latent problem in LEO. One tends to concentrate too much on the linguistic/grammatical problems of a Thread, without neccessarily considering the background situation adequately. In my original reply (which went down the drain when the laptop crashed), I had mentioned that I found it slightly surprising that a pump needed to be run in nowadays, actually I should have been asking on what basis this translation was founded and what sort of pump was concerned and how big it was.
Pumps are funny things! Some pumps need to be started up against closed valves because otherwise they can stall and if not switched off quickly enough, the motor can burn out. It may be counter-intuitive, but under these circumstances a pump actually requires less power.
However, there are other pump types, so-called positive displacement pumps, which if run under these circumstances, not only can the pump be damaged, higher powered pumps can actually explode. Where I'm working at present, we've quite a few pumps with more than 1 MW power. These are not positive displacement pumps, but if they were the potential damage would be enormous!
Then there are the non-priming pumps. If they are not pre-filled prior to starting, then they will be seriously damaged/destroyed within seconds or minutes.
There are plenty of other examples, but I think you get the point. The first time a pump is run can be vital to the remaining life of the pump. If this phase is not handled correctly, the pump can either be seriously damaged such that it's performance is seriously reduced, or, in the worst case, the pump may be completely destroyed.
For this reason, I feel it is most important that this part of the manufacturer's instructions be correctly weighted. If the first run of the pump is not correctly handled, there may not be a second chance!