A general question on testing hoist motor and gearboxes on gantry cranes.
A question came up about testing hoists with simply the lifting cradle or having a moderately loaded container on it to get a true reading of motor and gearbox vibration readings.
Now along with the same line would it be a better or more consistent method of reading vibration in the same direction rather then having the load coming up or down?
Historically all the readings have been done with simply the lifting cradle and in both direction's.
I am newish (2 years) at vibration and it seems to me that it would make sense to have a normal load and record in the same direction at every reading?