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5.2.9 Checking inside of casing
Stop the mechanical booster pump once every three months, remove the piping of the air intake,
and check the inside. Check that there is no deposit inside the casing (the rotor and casing
surfaces). Especially when organic gas etc. is exhausted, substances in the gas condense and
attached to the rotor surface, reducing its clearance and then making the rotation impossible.
5.3 Checkup after Storage for a Long Period
Long term storage of the Vacuum pump without operation might possibly cause trouble in operation
caused by rust.
If you kept the Pump long time without operating it, ask a closest Service Center for the check.
5.4 Overhaul
The check items are as described above but, if the pump is extremely contaminated or its
performance becomes extremely worse depending on the use conditions, it is recommended to
periodically overhaul the pump.
An overhaul is necessary to maintain the performance (including safety) and also continue
production on schedule.
Please contact the Service Center close to you listed at the end of the document as for the
overhaul.
Do not forget to fill and submit the Contamination certificate enclosed in the end of the document.
WARNING
●In the case where details on hazardous substances in use are not
disclosed or where any substance which is difficult to detoxify is
exhausted, we may refuse to do maintenance or other requests on
our site.
CAUTION
●You are requested to conduct the overhaul once a year.
If there found remarkable Pump contamination or performance
deterioration due to the operation condition, you are recommended
to conduct the overhaul earlier than one year period.
●You shall be in need of replacing such parts as listed on the “9.
Main Displacement parts” at minimum.
Do not forget to fill and submit the Contamination certificate
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