Oil level sight glass
Oil drain plug
6.
Tilt the pump slightly and catch the oil in a suitable container.
7.
Dispose of the oil according to local environmental regulations.
8.
Insert the oil-drain plug into the pump’s rear panel.
9.
To flush the pump, pour 50-mL of fresh oil into the pump inlet, on the pump’s top side.
Tip:
If you encounter difficulty, remove the separator.
10. Operate the pump briefly.
11. Drain the flushing oil into a suitable container.
12. If necessary, repeat steps 9 through 11 until all contaminants are removed.
Notice:
Do not fill the pump beyond the “max” mark.
13. Remove the oil-inlet plug and pour fresh oil into the oil-inlet port until the level reaches the
sight glass’s “max” mark.
14. Insert the oil-drain plug into the pump’s rear panel.
3.14 Gas ballasting the rotary backing pump
Note:
This section applies to the Performance QDa detector only. The Standard instrument uses
a diaphragm pump, which does not require oil.
Notice:
To avoid damaging the pump, do not leave it constantly in ballast mode. Doing
so can run the pump dry and fill the trap bottle and exhaust lines with oil.
Note:
To prevent the pump failing to start, do not power-on the QDa Detector when the backing
pump is in ballast mode.
For more information about gas ballasting the backing pump, see the
VACUUBRAND Technology
for Vacuum Systems Instructions for use
(VACUUBRAND rotary vane pump: model RE 6, part
number 99139 / 11/20/2013).
3.15 Replacing the rotary backing pump’s demister element
Note:
This section applies to the Performance QDa detector only. The Standard instrument uses
a diaphragm pump, which does not require oil.
June 15, 2017, 715003956 Rev. F
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