Waters SYNAPT G2 Operator's, Overview And Maintenance Manual page 119

8. Using the O-ring removal kit, carefully remove the isolation valve
O-ring (see page
Warning:
with biohazardous and/or toxic materials. Dispose of it
according to local environmental regulations.
9. If the isolation valve O-ring shows signs of deterioration or damage,
dispose of it in accordance with local environmental regulations.
10. Using the combined 2.5-mm Allen wrench and cone extraction tool,
loosen the captive screw that secures the PEEK terminal block.
Caution:
do not bend or twist them when removing the assembly from the
ion block.
11. Using the needle-nose pliers, grasp the PEEK terminal block and
partially lift it out of the ion block.
5-17).
The isolation valve O-ring can be contaminated
To avoid damaging the heater cartridge assembly wires,
Cleaning the ion block assembly
PEEK terminal
block securing
screw
5-41