1
Performing Routine Maintenance
Maintaining the Foreline Pump
40
ISQ 7000 Hardware Manual
Thermo Scientific
Checking the Oil in the Foreline Pump
To check the oil level of the foreline pump
1. Look in the oil-level sight-glass to see if the oil level is between the MIN and MAX marks.
2. If the oil level is below the MIN mark, add oil,
as described in
.
3. Look for oil that is clear or light amber in color.
a. If the oil is cloudy or discolored, purge the oil to decontaminate dissolved solvents, as
described in
Purging Gas from the Oil in the Foreline Pump
.
b. If the pump oil is still discolored, change it, as described in
.
Adding Oil to the Foreline Pump
To add oil to the foreline pump
1. Cool down the GC oven.
2. If you are using hydrogen as a carrier gas, cool down the injector to prepare the GC for
powering off. See the GC documentation for more information. After the heated zones
are cooled down, power-off the GC.
Note
If you are running samples, stop the acquisition before powering off the system.
CAUTION BURN HAZARD:
The oven may be hot. Allow it to cool to room temperature
before opening it. The injector will still be hot, so do not touch it.
ATTENTION RISQUE DE BRÛLURE :
le four peut être chaud. Laissez-le refroidir à la
température ambiante avant de l’ouvrir. L’injecteur sera toujours chaud, donc ne le touchez
pas.
WARNING FIRE HAZARD:
If you are using hydrogen as a carrier gas, you must cool down
and shut off the GC to prevent the buildup of hydrogen in the vacuum manifold. See the
of the Preface for more information.
AVERTISSEMENT RISQUE D’INCENDIE
: si vous utilisez de l’hydrogène comme gaz
vecteur, vous devez refroidir et mettre hors tension le CG pour éviter l’accumulation
d’hydrogène dans le collecteur à vide. Reportez-vous aux « Précautions de sécurité relatives à
l’hydrogène » à la page xvi de la préface pour plus d’informations.
Содержание ISQ 7000
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Страница 174: ...2 Troubleshooting Contacting Technical Support 146 ISQ 7000 Hardware Manual Thermo Scientific ...
Страница 400: ...3 Advanced Maintenance Replacing Fans and Filters 372 ISQ 7000 Hardware Manual Thermo Scientific ...