To remove the ion guide assembly from the source assembly:
1. Remove the source enclosure from the instrument (see
2. Remove the PEEK cone clamp and the gas cone by pulling the cone clamp away from the
instrument.
3. Use the 3-mm hex wrench to remove the four screws that secure the pumping block to the
instrument.
4. Carefully pull the pumping block away from the instrument and place it on a flat surface.
Note:
The ion guide assembly is attached to the rear side of the pumping block.
Figure 3–8: Removing the pumping block and ion guide
Pumping block
Securing screws (4)
5. Remove the three slotted screws that secure the differential aperture to the ion guide
housing using the flat-blade screwdriver, and then remove the differential aperture.
August 20, 2021, 715005003 Ver. 04 (Previously released as Revision C)
Page 41
