Figure 3–9: Removing the differential aperture
Electrical connectors Ion guide support
rods
Differential aperture
support
Differential aperture
support screws
Differential aperture
O-ring
Differential aperture
securing screws
Differential aperture Ion guide
Recommendation: Clean the differential aperture (see Cleaning the differential aperture
(Page 44)) before disassembling the ion guide housing. If cleaning the differential
aperture fails to increase signal sensitivity, continue with this procedure, and then clean the
ion guide (see Cleaning the ion guide assembly (Page 45)).
6. Remove the differential aperture O-ring.
7. Disconnect the five electrical connectors from the ion guide, leaving them attached to the
pumping block.
August 20, 2021, 715005003 Ver. 04 (Previously released as Revision C)
Page 42
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