Agilent Technologies 6890 Series Service Manual page 354

10. With an open end wrench, unscrew the transfer tube from the detector
base. Lift the transfer tube—containing the fused silica liner—vertically
off the instrument. Remove the fused silica liner and the 1/16-inch Vespel
ferrule by pulling the fused silica liner and ferrule out from the bottom.
Inspect for damage.
O-ring
Transfer tube
Liner
Figure 350-10
11. If necessary, install a new fused silica liner and Vespel ferrule. When
doing so, carefully feed the fused silica liner through the O-ring at the
top of the transfer line so as not to damage the O-ring.
Jun 2001
Ferrule
Replacing the fused silica gigabore liner
Detectors
Agilent 6890 Gas Chromatograph Service Manual
Flame Photometric Detector (FPD)
Replacement procedures
Heater/sensor assembly
O-ring
350
Heater block
3-6 mm
U-clamp
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