Waters Xevo TQD Overview And Maintenance Manual page 173

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.
To avoid damaging the heater cartridge assembly wires,
Notice:
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.
To avoid a short circuit to the ion block cover, ensure that
Notice:
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 onto 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.
13. Fit the ion block assembly onto the instrument (see
Replacing the ion block source heater
Heat-shrink tubing
page
March 14, 2014, 715004387 Rev. B
137).
173