- 14 -
12. Vacuum Pump Oil for Low Temperature
The specified oil is ULVOIL-R-7. In low temperatures (below about. 10
℃
) may
experience difficulty with starting the pump. Therefore, cheek the following
points carefully; belt tension, motor fuse, smoothness of rotation. If the pump
still can not be started easily, despite normal behavior the above check points, try
using ULVOIL-R-4 oil.
Caution: In high temperature (above about 10
℃
) , (ULVOIL-R-7) oil should
be used.
