Purging Gas From The Oil In The Foreline Pump; Changing The Oil In A Foreline Pump - Thermo Scientific TSQ 8000 Evo Hardware Manual

Purging Gas from the Oil in the Foreline Pump

Changing the Oil in a Foreline Pump

Thermo Scientific
11. If the oil level goes above the MAX level mark, remove the drain plug and drain the excess
oil into a suitable container.
12. Reattach the oil filler plug.
13. Twist the vent valve one and a half times in a clockwise direction.
14. Close the front door of the instrument.
15. Reconnect the foreline pump power cable to the System Mech Pump connector on the
back of the instrument.
16. Reconnect the optional mechanical pump to the instrument.
17. Power-on the TSQ 8000 Evo system.
18. Purge the foreline pump for 10 minutes using the gas ballast to remove excess gases from
the new oil.
Purging (or decontaminating) the oil in the foreline pump removes dissolved gases and
low-boiling-point liquids from the oil. Purge the oil if it is cloudy or discolored. You can
purge the oil without interrupting system operation.
Set the gas-ballast control to the closed position (0 means closed) to purge the oil.
CAUTION INSTRUMENT DAMAGE: Properly vent the foreline pump exhaust. While the
gas is being purged, more oil vapor is being generated. If you leave the purge open for an
excessive amount of time, the pump oil will turn into mist, which could damage the
pump. Never purge your pump for more than 10 minutes at a time.
You should change the foreline pump oil every four months or after 3,000 hours of operation.
If you use ammonia as a chemical ionization reagent gas, change the oil every month.
Ammonia is highly corrosive and quickly damages the seals in the foreline pump.
Note For best results, change the oil while the foreline pump is still warm. Be careful, as
the oil can be very hot if the pump has been used recently.
To change the oil in the foreline pump:.
Note If you are running samples, stop the acquisition before powering off the system.
WARNING BURN HAZARD: The injector, oven, and transfer line may be hot. Allow them
to cool to room temperature before touching them.
1
Performing Routine Maintenance
Maintaining the Foreline Pump
TSQ 8000 Evo Hardware Manual 23