8
Maintenance
Maintaining the Forepumps
76 TSQ Endura and TSQ Quantiva Hardware Manual Thermo Scientific
Reinstalling the API Source Interface
To reinstall the API source interface
1. Orient the API source interface with the release latch at the top (Figure 35).
2. Carefully insert the API source interface into the vacuum manifold.
3. Reinstall the API source housing.
4. Start up the system as described in Starting the System After a Complete Shutdown.
Maintaining the Forepumps
Maintaining the forepumps requires inspecting, adding, purging, and changing the pump oil.
Refer to the manufacturer’s manual for instructions.
Check the forepump oil often. New oil has 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 10 000 hours (or about every 12–13 months) of operation.
Maintaining the Air Filter
Clean the air filter located behind the mass spectrometer’s front cover every four months, or
sooner if it is dirty.
To clean the air filter
1. Remove the air filter as follows:
a. Remove the front cover of the mass spectrometer as follows:
i. Disconnect the plumbing tubing to the API source.
ii. Depress the four spring catches that are located on either side of the front cover.
iii. Pull the front cover off at an angle to clear the API source.
CAUTION To minimize the risk of oil contamination in the vacuum system, make sure
that the purging ballast is closed when you vent the system to atmosphere.
Note You do not need to remove the API source to remove the front cover of the mass
spectrometer.
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