Thermo Scientific TSQ Altis, Руководство по оборудованию

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Thermo Scientific TSQ Altis, Quantis, and Fortis Hardware Manual 111
24
Maintaining the Forepumps and the Air Filter
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. 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.
New oil has a translucent, light amber color. 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 MS’s front cover every four months, or sooner if it is
dirty.
1. Remove the air filter as follows:
a. Disconnect the plumbing tubing to the API source.
b. Depress the four spring catches that are located on either side of the front cover.
c. Pull the front cover off at an angle to clear the API source.
d. Remove the filter from the filter bracket ( Figure 58 ).
2. Wash the air filter in a solution of soap and water.
3. Rinse the filter with tap water, and then allow it to air dry.
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 MS.