Maintenance and Servicing
6.2.1
Maintenance of the rotary vane pump
Scope of permissible work:
•
Check the oil level.
The oil consumption varies according to the operating conditions of the rotary vane pump.
The oil level must be checked on the oil level gauge to ensure that the vacuum pump al-
ways remains in optimal operating condition. The oil level must always be kept within the
given markings on the oil level gauge. The oil must be topped up if the oil level falls to the
lower mark.
•
Change the oil when its quality falls.
Tools required:
•
826801-10 Open spanner SW 22
•
826801-6 Allan key SW 5
1 -
screw-plug for oil-filling
2 -
oil drain screw plug
3 -
Oil sight glass
4 -
lower marking MIN
5 -
upper marking MAX
Fig. 5 Oil level control
6.2.1.1 Oil
check
CAUTION !
The condition and quality of the pump oil have a substantial effect upon the per-
formance and operational readiness of the vacuum pump!
Comparing the colour of a sample of the pump oil with fresh oil provides an indication of the
contamination of the pump oil.
You obtain the oil needed for testing from the oil drain aperture with the vacuum pump
switched off and at operating temperature.
Brown or black oil, or oil smelling as if it has burnt must be removed from the vacuum pump.
Flush the vacuum pump and fill up with fresh oil.
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