Maintenance
Agilent Graphite Tube Atomizer GTA 120 User’s Guide 57
Figure 23. Removing the right electrode
4 Fit the sleeve over the end of the electrode to bear directly onto
the innermost face of the housing.
5 Fit the shouldered face of the pressure plate onto the sleeve.
6 Put the PTFE washer on the bolt.
7 Put the knurled nut on the bolt, and screw it down until the head
of the bolt is against the electrode. Make sure the head of the bolt
fits into the electrode, with the underside of the head bearing on
the end of the electrode.
8 Screw the knurled nut down the bolt until the electrode is pulled
out. Use the wrench provided.
9 Unscrew the nut from the bolt and discard the old electrode.
10 Remove the left window.
11 Pass the bolt through the left electrode from the left (window)
side as before.
12 Assemble the sleeve, PTFE washer and knurled nut on the bolt
and screw. Tighten the nut to remove the electrode as before.
13 Unscrew the nut from the bolt and discard the old electrode.
14 Thoroughly clean out the inside of both housings.
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