Ulvac PMB-040C - Pump Oil Level Check; Pump Oil Check; Replacement of Pump Oil

YK10-0015-DI-002-03
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5.2.1 Pump oil level check
Set the oil level so that it is within the appropriate range of the oil level gauge during the operation.
5.2.2 Pump oil check
The vacuum pump oil is not only contaminated by suction gas but also gradually deteriorated by a
temperature rise during the pump operation.
Check the degree of contamination and the viscosity of the oil, and periodically replace the oil.
If any substance of low boiling point thing (such as water and organic solvents) mixes with the
pump oil or any slime foreign substance (sludge) is accumulated at the bottom of the pump case,
the ultimate pressure is not recovered by one replacement but needs several times of oil
replacement.
In addition, if the product is operated with a large amount of moisture mixed in the pump oil, the
ultimate pressure becomes high first and then the movement of the mechanical friction parts of the
pump becomes worse.
CAUTION
●Depending on the use conditions, the pump oil may deteriorate in a
extremely short period of time.
It is recommended to perform the first replacement of the pump oil
within ten days and, after checking the degree of contamination of
oil, decide the oil replacement cycle.
5.2.3 Replacement of pump oil
DANGER
●This pump cannot be used with harmful gas or combustible gas.
●If this product is accidentally used to exhaust harmful gas or
combustible gas, the pump body and, of course, the pump oil also
become harmful. Take due care.
CAUTION
●Read “1. 2 Chemical Material Safety Data Sheet” previously before
starting lubrication.
Please obtain the latest version of Material Safety Data Sheet (SDS)
from our Sales Department.
●Weal protective gears such as rubber gloves, protective goggle and
so on.
Should the oil touched to your hand are entered in your eye,
immediately follow the emergency treatment described on the SDS.