Maintenance
Dismantling and Cleaning Procedures
10-8 Prima PRO & Sentinel PRO Mass Spectrometers User Guide Thermo Fisher Scientific
To clean the magnet pole pieces, proceed as follows.
1. Disconnect the wiring for the electromagnet coils from the
magnet power and control PCAs, top RH side of the enclosure
(Figure 10–7). Note the wiring sequence of the main coils to the
power PCA. The electromagnet will fail to operate if these are
not refitted in the correct sequence.
Figure 10–7. Disconnecting the wiring
2. Using two 19 mm ratchet ring spanners, jack up the coils and
yoke assembly until it clears the pole pieces (Figure 10–8).
Ensure that the bolts are unscrewed evenly to avoid unnecessary
strain to the threads. The bolts will now be free from the threaded
hex pillars.
Figure 10–8. Jacking up the coils and yoke assembly
3. Lift out the coil assembly (Figure 10–9).
Magnet Pole
Piece Assembly
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