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Quiet Cover DS User Information
3
Operation
Changing Rough Pump Oil
Periodically, you must change the rough pump oil. The oil
tray of the Quiet Cover DS is designed to collect the oil as it
drains from the pump. Please refer to your pump
documentation for detailed information regarding changing
your pump oil.
To change the oil:
1
Properly prepare your system for release of primary
vacuum.
2
Turn off the rough pump.
3
Turn off Quiet Cover DS.
4
Unplug the power supply from the Quiet Cover DS.
5
Open the front access door of Quiet Cover DS by
loosening the retained thumbscrews.
6
Lock the front locking casters to secure the Quiet Cover
DS.
7
Be sure the oil tray is securely seated.
8
Tilt the Quiet Cover DS by using the kickstand located at
the back of the Quiet Cover DS (See “Using the
Kickstand” on page 33.) This technique is the most
efficient way to drain the pump oil.
