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Should the set screws of the motor feet be loosened during the operation of the pump? Why?

2016-05-26View Original

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Should the set screws of the motor feet be loosened during the operation of the pump? Why?
Reply #22016-05-26
I’ve never heard of it being necessary to loosen the foot screws
Reply #32016-05-26
It shouldn’t loosen; there are standards set for vibration levels according to national regulations – it’s not allowed to exceed certain limits, and it must also be secure
Reply #42016-05-26
Personally, I think it should be loosened; the function of the set screw is to adjust alignment. If it’s used for fixing, wouldn’t that cause a conflict with the footings?
Reply #52016-05-26
Not loosening it during delivery should have no impact on the unit. If possible, it’s still a good idea to add a spare cap for fixing it, which will make it easier to check alignment during maintenance.
Reply #62016-05-26
Losing the restraint means having one less constraint; I don’t think it should be removed
Reply #72016-05-26
I’ve never heard of it needing to be loosened. Won’t releasing it affect the original alignment of the pump?
Reply #82016-05-26
Are you trying to be funny? If you’re going to loosen it, then why use foundation bolts at all...
Reply #92016-05-26
Dear everyone, the question is whether the set screws used for motor alignment are loose, not the motor’s foot bolts
Reply #102016-05-27
I’m not sure which specific part’s set screw the original poster is referring to. If it’s the set screw used to remove the motor, it should be loosened before aligning the coupling; otherwise, it will affect the alignment data. If the set screws are used for alignment, they should also be loosened after alignment is completed and the foundation bolts have been tightened, in order to prevent the motor from experiencing free expansion due to heat generation during operation. Therefore, the set screws of the foundation bolts must be loose during operation.

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