5 Maintenance
Rough Pump
Agilent 6475 Triple Quad LC/MS System User Guide 86
Replacing the rough pump oil
Perform this procedure yearly.
Tools needed:
• Clean chemical-resistant gloves
• Safety glasses
• Funnel
• 10 mm hex key
• Paper towel or shop rag
• Small plastic tub
Parts needed:
• AFV 60 gold oil
Wear chemical-resistant gloves and safety glasses (goggles) for your safety.
Do not touch the fill cap or pump until they are cool. The fill cap and pump can
be dangerously hot.
Never add or replace the rough pump oil while the pump is on. Hot oil can
splash out and cause harm.
Use only the rough pump oil appropriate for your pump (AFV 60 gold oil for
Agilent MS40+). The use of any other oils can substantially reduce pump life
and will invalidate the pump warranty.
To replace the rough pump oil,
1 Put on clean chemical-resistant gloves.
2 Place the instrument into 'Standby' then 'Vent'.
3 Allow the rough pump to turn off automatically, this should take about 15
minutes.
4 Unplug all power cords from the LC/MS instrument.
5 Unplug the rough pump.
6 Remove first the fill cap and then open the drain plug.
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