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To add oil to the roughing pump
1.
Vent and shut-down the instrument (see the mass spectrometer's online
Help for details).
Warning:
with the roughing pump: it can be hot.
2.
Use the 8-mm Allen wrench to unscrew and remove the roughing pump's
oil filler plug (see the figure
Caution:
vacuum oil, type GS 495.
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.
Caution:
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.
5.
Use the 8-mm Allen wrench to fit and tighten the roughing pump's oil
filler plug.
When the oil filler plug is tightened, the plug seals with an O-ring.
Tip:
Compression is controlled by the O-ring groove depth in the plug.
Increased torque does not improve the plug seal; it only makes the plug
difficult to remove later.
6.
Start the instrument (see
After you add oil to the pump, the following situations can occur:
Tips:
•
The oil level drops slightly during the first month of operation.
•
The oil changes color (darkens) over time.
5-18
Maintenance Procedures
The pump oil can be contaminated with analyte
Warning:
accumulated during normal operation. Always wear
chemical-resistant, powder-free gloves when adding or
replacing oil.
To avoid burn injuries, take great care while working
"Roughing pump" on page
To maintain pump performance, use only Anderol
To avoid oil leakage, when fitting the oil filler plug to
"Starting the instrument" on page
5-14).
2-2).
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