Figure 36. Fingertight Fittings Installed Over The Safety Sleeve (Esi Probe); Figure 37. Grounding Union Positioned In The Grounding Bar - Thermo Scientific LTQ Series Hardware Manual

5
Maintenance
Ion Source Probe Maintenance
66 LTQ Series Hardware Manual
c. Slide the natural PEEK, two-wing fingertight fitting with the threaded end facing
away from the sample inlet onto the safety sleeve.
d. Slide the natural PEEK ferrule with the tapered end facing away from the sample
inlet onto the safety sleeve.

Figure 36. Fingertight fittings installed over the safety sleeve (ESI probe)

7. Connect the safety sleeve and sample tube assembly to the grounding union as follows:
a. Adjust the position of the sample tube so that it is flush with the end of the safety
sleeve that protrudes from the back of the probe.
b. To provide leverage when tightening the fitting to the union, position the grounding
union in the grounding union bar of the ion source housing

Figure 37. Grounding union positioned in the grounding bar

Grounding
union
c. To prevent the sample tube from slipping through the grounding union thru-hole
and out the other end, connect a fingertight fitting and red PEEK tubing to the other
end of the grounding union.
One wing, red,
fingertight fitting
Grounding bar
Natural PEEK ferrules
Two wings,
natural PEEK
fingertight fitting
(Figure 37).
Sample inlet
Thermo Scientific