Waters Xevo TQD Operator's, Overview And Maintenance Manual page 167

7. Use the needle-nose pliers to gently grasp the heat-shrink tubing on the
heater cartridge assembly and slide the assembly out of the ion block.
Heater cartridge assembly
8. Dispose of the heater cartridge assembly.
Caution:
wires, do not bend or twist them when fitting the assembly to the
ion block.
9. Use the needle-nose pliers to gently grasp the heat-shrink tubing on the
new heater cartridge assembly and slide the assembly into the ion block.
Caution:
that the 2 heater cartridge ring tags are pushed fully down on
the PEEK block terminals.
10. Use the needle-nose pliers to position the 2 heater wire ring tags fully
down on the PEEK block terminals.
11. Use the combined 2.5-mm Allen wrench and cone extraction tool to fit
and tighten the 2 screws securing the heater wires to the PEEK
terminal block.
12. Fit the ion block cover plate to the ion block assembly, and then use the
combined 2.5-mm Allen wrench and cone extraction tool to tighten the 2
captive screws securing ion block cover plate.
Fit the ion block assembly to the instrument (see
To avoid damaging the heater cartridge assembly
To avoid a short circuit to the ion block cover, ensure
Replacing the ion block source heater
Heat-shrink tubing
page 4-55).
4-91