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SCD and NCD User Manual
5
Maintenance
Check the Vacuum Pump Oil
Check the level and color of the pump oil weekly.
1
Check the oil level in the window of the foreline pump. The
oil level should be between the marks for Max and Min.
Figure 16
Checking the oil level
2
Check that the color of the pump oil is clear or almost clear
with few suspended particles. If the pump oil is dark or full
of suspended particles, replace it.
3
Record the maintenance in the maintenance logbook. If
applicable, reset the EMF counter.
CAUTION
Never add or replace the foreline pump oil while the pump is on.
Oil level
Max
Min