SK00-4390-DI-002-11
27
WARNING
The guaranteed pressure resistance of this pump is 0.03 MPa (0.3
kg / cm2) (gauge pressure).
Operate the supply pressure of the gas
ballast gas to be introduced within the following range.
Supply pressure: Atmospheric pressure to 0.03 MPa (0.3 kg / cm2
(gauge pressure)) or less.
4.5 Vacuum Pump Oil for Winter Season
Starting the Pump operation might become difficult in winter in the cold district or where the
Pump was installed outdoor.
This is the overload phenomenon caused by increased viscosity. To make sure, you should
confirm that the capacity of the motor overload protective device conforms to the motor rated
value and warm up the Pump oil or replace the oil with the Vacuum pump oil ULVOIL R-42 having
lower viscosity.
CAUTION
Pump rotation might have a trouble if lubricated with the ULVOIL R-72
when the temperature got down beneath 10°C. It is because the rotation is
hampered by increased viscosity of the oil inside the Pump unit under
lower temperature.
It is better to use the ULVOIL R-72 having less viscosity that enables you
to start rotating the Pump around 4°C. You should, however, replace it with
the ULVOIL R-72 if the temperature gets 10°C or more. Be cautious as
using the ULVOIL R-42 in warm season would cause such troubles as
sealing error or oil leak due to its lower viscosity.
Summary of Contents for VS1501
Page 2: ......
Page 13: ...SK00 4390 DI 002 11 xi Fig 1 Warning Label display position...
Page 27: ...SK00 4390 DI 002 11 7 Fig 2 VS1501 Dimensional drawing...
Page 28: ...SK00 4390 DI 002 11 8 Fig 3 VS2401 Dimensional drawing...
Page 36: ...SK00 4390 DI 002 11 16 Fig 5 Suction Exhaust piping connection diagram...
