Agilent Technologies 8355 Sulfur User Manual page 74

5
Maintenance
WA RNING
74
Hydrogen gas is flammable. Turn off all detector (and column)
hydrogen gas flows before performing maintenance on the
detector.
3
Disconnect the transfer line and quickly cover the open end
with the 1/8-inch cap. Use a 3/8-inch wrench on the transfer
line and a 7/16-inch wrench on the upper fitting to hold the
burner assembly steady.
4
Using two 7/16-inch wrenches, remove the outlet fitting from
the upper fitting.
5
If the old O-ring is stuck to the bottom of the outlet fitting,
use tweezers or similar to gently pry it loose from the fitting.
6
Remove the old inner ceramic tube.
7
Place a new O-ring over the end of the new inner ceramic
tube, and slide the O-ring about 7 mm down the tube. (This
dimension is not critical.)
Inner ceramic tube
8
Gently insert the tube and O-ring assembly into the burner
until it rests on the O-ring.
9
Orient the outlet fitting so the hex flats are closer to the
upper fitting, as shown, and install over the ceramic tube.
Tightening the outlet fitting will automatically adjust the
O-ring and ceramic tube positions. Tighten until snug
(finger-tight). Do not overtighten.
O-Ring
~ 7 mm
SCD and NCD User Manual