Installing Or Replacing Frits In The Pcm - Agilent Technologies Agilent 7890 Series Maintenance Manual

18
Maintaining the PCM

Installing or Replacing Frits in the PCM

332
To install or replace a frit:
1 Gather the following:
• O- rings, package of 12, 5180- 4181
• Restrictor
• Tweezers
2 Turn off the gas supply to the channel.
3 Select the appropriate frit. For information on selecting
PCM channel frits, refer to the
Guide.
4 Remove the screw holding the tubing block with the
output tubing.
Remove the tubing block. Remove the frit and O- ring
5
using the tweezers. Be careful to avoid scratching the
metal surfaces.
Remove the other O- ring as well. Replace it with a new
6
O- ring.
7890 Series Advanced User
Maintaining Your GC