Waters ACQUITY Isocratic Solvent Manager Overview And Maintenance Manual page 130

3 Maintenance Procedures
To remove the accumulator head seals:
1. Stand the head upright on a clean surface.
2. Using the T27 TORX driver, completely loosen the two head bolts to
release the support plate from the pump head.
Requirement:
reuse the head bolt washers when reassembling the pump head.
3. Lift the pump head from the support plate.
130 September 26, 2013, 715004208 Rev. A
If you remove the transducer and head bolts, be sure to
Head bolt (2)
Pump head
Seal wash housing
Support plate