How often should the pump of a device that is parked for long periods be turned?
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The unit was shut down for nearly two years for some reason; during that time, how often should the pump be rotated? Are there any relevant standards and specifications?
We run the equipment on a long-term shutdown schedule once a quarter
This is no longer a lubrication issue; it’s a problem of preventing the shaft from sagging and bending.
Our unit has set the rule that the pump should be inspected once a day； For large units, oil circulation and barring are performed once a week. There are no standards.
There’s no need to turn the shaft around once a day; shaft sagging and bending mainly occur in multi-stage pumps or those with relatively long shafts. For our regular pumps, it’s fine not to turn them around even once every six months
We do not perform shaft rotation here; the backup equipment is switched over each time there is a product change, approximately once a month.
Turn the pump over once a day, for both standby pumps and pumps that are not in use. There are basically no specific guidelines for large-scale units.
We inspect our ordinary pumps every 2 days, and air compressors once a week.