Waters Xevo TQD Operator's, Overview And Maintenance Manual page 177

This procedure is not required for an Edwards oil-free roughing
Note:
pump.
Required materials
• Chemical-resistant, powder-free gloves
• 6-mm Allen wrench
• 10-mm wrench
To remove the roughing pump oil demister element:
1. Vent and shut down the instrument (see the mass spectrometer's online
Help for details).
2. Allow the roughing pump to cool.
Warning:
biohazardous or toxic analyte accumulated during normal
operation. Always wear chemical-resistant, powder-free
gloves when replacing the oil demister element.
Warning:
with the roughing pump; it can be hot.
3. Use the 6-mm Allen wrench to remove the 4 bolts securing the exhaust
flange to the roughing pump.
Securing bolt
Exhaust flange
The pump oil can be irritant, or contaminated with
To avoid burn injuries, take great care while working
Replacing the roughing pump's oil demister element 4-101
TP02694