User`s guide

Routine Maintenance
283
5. At the inlet of the trap, disconnect the inlet fitting from
the heated valve.
6. You should be able to remove the filter disk from the
inlet fitting without removing the fitting from the heated
valve. Use tweezers or forceps to remove the filter and
replace it with a new one (L1003030,pk/10). Ensure that
the filter disk is properly seated
NOTE: Do not touch the filter disks with your fingers. They should
only be removed from the bag when they are to be placed
into the fittings. They must be stored in location well away
from any organic compounds or vapors.
7. At the right end of the trap remove the filter disk. Again,
use tweezers or forceps to remove the filter and replace
it with a new one (L1003030,pk/10). Ensure that the
filter disk is properly seated.
8. Gently push the trap through the enclosure until it
reaches the inlet fitting. Do not force the trap at any
time. If it does not move smoothly, then remove it and
try again.
9. Re-connect the fitting at the trap inlet.
10. Re-connect the fitting at the end of the trap to the union
that supplies the carrier gas. Do not over tighten the
fitting.
NOTE: During this procedure, do not apply rotational force to the
glass tube or it will crack. Rotate the nuts only, not the
union.
11. Replace the heated valve cover plate. Align the cover
over the enclosure and replace the screws to secure the
cover to the enclosure.
12. If you removed the trap enclosure cover, replace it and
secure it with the screws.
CAUTION
Only tighten the cold-trap fittings enough to prevent leakage.
The tube is fragile.