Waters Xevo TQD Operator's, Overview And Maintenance Manual page 175

5. Use the 8-mm Allen wrench to remove the oil filler plug.
Oil filler plug
Oil-level sight glass
Drain plug
6. Use the 8-mm Allen wrench to remove the oil drain plug.
7. Tip the pump toward the drain plug aperture and allow the oil to drain
completely into the container.
Warning:
contaminated with biohazardous and/or toxic materials.
Ensure that it is correctly disposed of according to local
environmental regulations.
8. Dispose of the roughing pump oil in accordance with local environmental
regulations.
9. Ensure that the O-ring on the oil drain plug is clean and properly
seated.
Caution:
fitting the oil drain plug to the roughing pump:
• Ensure that the plug is not cross-threaded.
• Ensure that the O-ring is not pinched.
• Do not overtighten the plug.
10. Use the 8-mm Allen wrench to fit and tighten the roughing pump's oil
drain plug.
The roughing pump oil can be irritant, or
Observe these precautions to avoid oil leakage when
Replacing the roughing pump oil
TP02689
4-99