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YK18-0012-AI-101-02
5. Maintenance and Inspection
In order to use the machine safely with keeping the inherent performance, daily and periodical
inspection and maintenance are necessary.
5.1 Daily inspection
Check following items in order to prevent the machine from breaking down for extending the service
life.
Item
Checking details
Actions taken against
abnormalities
Purge gas
(when using a purge
gas)
The flow rate of the purge gas shall conform
to the predefined value.
Check the supplied pressure and
piping.
Abnormal sound and
abnormal vibration
No abnormal sound or vibration shall be
heard.
Check the fixation of the machine
and piping.
Are not there any
abnormalities in the
exhaust.
No overload shall be applied on the pump.
Check the intake side pressure.
Check that the exhaust side is
not covered.
5.2 Inspection after prolonged storage
If the machine is unoperated and kept stored for a long time (six months), the operation of the machine
may be interfered because of moisture absorption or lubrication defect etc.
If the machine is kept unoperated for a long time, entrust a nearby service center to conduct an
inspection work before re-use.
5.3 Overhaul
Conducting an overhaul regularly is recommended. Overhauling is required not only for maintaining
the performance level (including safety) but also for continuing scheduled operation.
Do overhaul once a year
Do overhaul once a year.
In addition, if the pump is extremely polluted or the performance extremely
deteriorates under the conditions of use, do an overhaul even within one year.
For overhaul, contact the nearest service center. Note that when you make a request for an
overhaul, fill out the pollution notice at the end of this document and submit it.
If the details on the hazardous substances you have used are not disclosed, or if substances that
are hard to detoxify are exhausted, we may refuse maintenance and other operations at our service
center.
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Maintenance and Inspection
CAUTION
