Performing Maintenance
FAM 25/45/60/75/95
en(us)
Page 101/160
BEWA FAM25-95 3402054f en(us) 2013-06-13
2013-06-13
Changing vacuum pump oil and oil filter (FAM 45-95)
The first oil change must take place after 100 operating hours. Afterwards, the
interval increases to ~ 3000 hours or twice per year.
The vacuum pump must be at operating state temperature when the oil is changed.
Switch on the unit and let it run for at least 10 minutes, then switch it off at the main
switch. Wait until the pressure in the vacuum column has fallen to atmospheric
pressure (~ 1000 mbar absolute).
To perform these tasks, you will need the following tools, equipment and material:
Vacuum pump oil VE101 (for part-no., see spare parts list)
Used oil container
Maintenance set, comprising oil filter, air deoiling element, ventilation cover
seal (for part-no., see replacement parts list).
27 mm / 32 mm wrench
To change the oil, proceed as follows:
1.
Have a suitable drip tray on hand to catch the used oil.
2.
Open the screw plug (
4
) and allow the used oil to drain into the container.
Dispose of the used oil in an environmentally friendly manner.
3.
Close the screw plug when the flow of oil diminishes.
Let the pump run again briefly for a few seconds,
4.
Open the plug screw once again and drain off the remaining oil.
5.
Screw in the plug screw and tighten it firmly.
6.
Remove the oil filter (
11
) and dispose of it in an environmentally friendly
manner.
7.
Install the new oil filter (
11
).
8.
Fill in new vacuum pump oil through the oil filling screw plug (5) until the MAX
marking (3) has been reached.
9.
The change of the vacuum pump oil and the oil filter is complete.
