144 Agilent 6500 Series Q-TOF LC/MS Maintenance Guide
2Maintenance
To replace the rough pump fluid
To replace the rough pump fluid
Replace the pump fluid every six months. Replace it sooner if the fluid
appears dark or cloudy.
Before you begin, make sure you have:
• Container for catching old pump fluid
• Funnel
• Gloves, chemical resistant, clean, lint free (p/n 9300-1751)
1 Turn off the instrument.
See “To shut down the instrument” on page 19.
2 Unplug the power cord(s) from the instrument
Leave the power cord(s) unplugged while performing this procedure.
W
Wear chemical-resistant gloves and safety glasses (goggles) for your safety.
Never add or replace the rough pump fluid while the pump is on. Hot oil can splash
out and cause harm.
The fill cap and pump may be dangerously hot. Check that the fill cup and pump are
cool before you touch them.
Do not touch the fluid. The residues from some samples are toxic. Properly dispose
of the fluid.
Use only the rough pump fluid appropriate for your pump (Inland 45 oil for Edwards
E2M28). Any other fluids can substantially reduce pump life and invalidates the pump
warranty.
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