Differential aperture
support
Differential aperture
support screws
Differential aperture
O-ring
Differential aperture
securing screws
Differential aperture
Ion guide
6. Fit the differential aperture to the differential aperture support using the three slotted
screws, and then secure the screws using a flat-blade screwdriver.
7. Carefully slide the pumping block and ion guide assembly into the instrument’s source
housing.
Tip:
To correctly orient the pumping block, ensure that the ion guide remains visible at the
left-hand edge of the pumping block’s front face.
Figure 3–16: Fitting the pumping block
Pumping block
Securing screws (4)
8. Secure the pumping block to the instrument using the four pumping block securing screws,
and then tighten them using the 3-mm hex wrench.
August 20, 2021, 715005003 Ver. 04 (Previously released as Revision C)
Page 49
