Figure 30. Esi Probe With The Nozzle Removed - Thermo Scientific LTQ Series Hardware Manual

5
Maintenance
Ion Source Probe Maintenance
Cleaning or Replacing the ESI Probe Components
60 LTQ Series Hardware Manual
7. Pull the ESI needle out of the ESI manifold

Figure 30. ESI probe with the nozzle removed

ESI needle
8. To dislodge the needle seal, gently tap the ESI manifold against a hard surface.
If necessary, use the needle or another appropriate tool to push the needle seal out of the
ESI manifold. Tapping the manifold against a hard surface can also dislodge the resistor
and battery contact.
9. Using the 1/2 in. open-end wrench, disconnect the high-voltage (HV) socket from the
ESI probe.
10. Unscrew the fitting from the sheath liquid inlet.
11. If the ESI manifold needs cleaning, follow the procedure
manifold" on page 62.
12. To reassemble the ESI probe, see
Maintaining the ESI probe requires occasional replacement of the 26-gauge needle, the needle
seal, the ESI nozzle, and the HV socket O-rings. In addition, the ESI nozzle and manifold
occasionally require cleaning.
For Field Service use only
ESI 26-gauge spray needle
ESI needle seal
ESI nozzle O-ring, Viton™, 0.676 in. ID
ESI high-voltage socket O-ring
(Figure
Resistor
Needle ESI
seal manifold
"Assembling the ESI Probe"
30).
High-voltage socket
Sample inlet
adapter fitting
Sheath liquid
inlet fitting
"To clean and dry the ESI
on page 62.
Part number
00950-00990
00950-00952
00107-05710
00107-02550
Thermo Scientific