Waters Xevo TQD, Руководство оператора, обзор и техническое обслуживание

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4-26 Maintenance Procedures
To add oil to the roughing pump:
1. Vent and shut down the mass spectrometer (see the instrument’s online
Help for details).
2. Use the 8-mm Allen wrench to unscrew and remove the roughing pump’s
oil filler plug (see the figure on page 4-22 ).
3. Using the funnel, add Anderol vacuum oil, type GS 495, into the oil filler
aperture until the oil reaches the oil level sight glass MAX level.
4. Ensure that the O-ring on the oil filler plug is clean and properly seated.
5. Use the 8-mm Allen wrench to fit and tighten the roughing pump’s oil
filler plug.
Tip:
When the oil filler plug is tightened, the plug seals with an O-ring.
Compression is controlled by the O-ring groove depth in the plug. Over
tightening does not improve the plug seal; it only makes the plug
difficult to remove later.
Tip:
After you add oil to the pump, the following situations can occur:
• The oil level drops slightly during the first month of operation.
Warning:
The pump oil can be contaminated with analyte
accumulated during normal operation. To avoid
contamination by biohazardous or toxic materials, always
wear chemical-resistant, powder-free gloves when adding or
replacing oil.
Warning:
To avoid burn injuries, take great care while working
with the roughing pump; it can be hot.
Caution:
To maintain pump performance, use only Anderol
vacuum oil, type GS 495.
Caution:
To avoid oil leakage, when fitting the oil filler plug to the
roughing pump,
• ensure that the plug is not cross-threaded.
• ensure that the O-ring is not pinched.
• do not over tighten the plug.