‘Good’
is normally applicable to newly commissioned machines.
‘Satisfactory’
applies to machines considered acceptable for unrestricted long-term
operation.
‘Just
Satisfactory’ applies to machines considered
unsatisfactory for long-term continuous operation. Generally
the machine may be operated for a limited period in this condition
until a suitable opportunity arises for remedial action.
‘Unsatisfactory’
applies when the vibration severity is considered sufficient
to cause damage to the machine.
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