Forepump Maintenance; Fan Filter Maintenance - Thermo Scientific LTQ Series Hardware Manual

5
Maintenance

Forepump Maintenance

Forepump Maintenance

Fan Filter Maintenance

124 LTQ Series Hardware Manual
5. Under both Positive Ion Mode and Negative Ion Mode, select Electron Multiplier Gain.
6. (Optional) Select the Set Instrument to Standby when Finished check box.
7. Click Start.
8. After the electron multiplier gain calibrations are complete, set up the mass spectrometer
for operation as described in the LTQ Series Getting Started Guide.
Inspecting, adding, purging, and changing the pump oil are all that is required to maintain
the forepump or forepumps, depending on the mass spectrometer model.
Check the forepump oil often. It is a translucent light amber color. During normal operation,
oil must always be visible in the oil level sight glass between the MIN and MAX marks. If the
oil level is below the MIN mark, add oil. If the oil is cloudy or discolored, purge the oil to
decontaminate dissolved solvents. If the pump oil is still discolored, change it. Plan to change
the pump oil every 3000 hours (or about every 4 months) of operation.
Refer to the manufacturer's documentation for procedures to purge, add, and change the
forepump oil.
CAUTION To minimize the risk of oil contamination in the vacuum system, make sure
that the purging ballast is closed when venting the system to atmosphere.
For Field Service use only
Forepump oil, 1 L
See the MSDS cautionary statement on
Clean the fan filter every 4 months, or sooner if it is dirty. The fan filter is located on the back
of the mass spectrometer on the left side (when facing the back).
 To clean the fan filters
1. Remove the fan filter by pulling it up and out of the fan filter bracket.
2. Wash the filter in a solution of soap and water.
3. Rinse the filter with tap water.
4. Squeeze the water from the filter and allow it to air dry.
5. Reinstall the fan filter in the fan filter bracket.
page 56.
Part number
00301-15101
Thermo Scientific