Removing the primary head and replacing its seals
September 26, 2013, 715004208 Rev. A
107
Removing the primary head and replacing its seals
See the ACQUITY online Help to help determine whether you need to replace
the primary head seals.
Required materials
•
Compressed air
•
Gloves: clean, powder-free, chemical-resistant
•
Methanol
•
Plunger (recommended)
•
Plunger seal and plunger-seal spacer
•
Fluoropolymer O-ring
•
Seal-wash seal
Required tools
•
1/4-inch, open-end wrench
•
5/16-inch, open-end wrench
•
Plunger removal tool (recommended)
•
Seal extraction tool
•
Sharp tool
•
T27 TORX driver (startup kit)
•
Torque wrench
Warning:
To prevent injury, always observe Good Laboratory Practices
when you handle solvents, change tubing, or operate the ISM. Consult
the Material Safety Data Sheets regarding the solvents you use.
Caution:
To prevent contamination, wear clean, chemical-resistant,
powder-free gloves when removing and replacing the head seals.