WATERS CORPORATION TQ, Operator'S Manual, Page: 87 / 192

Cleaning the ion block, isolation valve, and extraction cone
December 6, 2012, 71500126802IVD Rev. C 87
3. Slide the cone gas assembly out of the ion block assembly.
4. Use the 2.5-mm Allen wrench to loosen the 4 ion block cover plate
captive securing screws.
5. Remove the ion block cover plate.
Caution:
To ensure correct operation of the ion block assembly after
reassembly,
• the gas cone position block must not be removed
• the screws holding the gas cone position blocks in place must not be
adjusted.
TP02649
Ion block cover plate securing screw
Ion block cover plate