Agilent Technologies 1290 Infinity II - Assemble Longlife Pump Heads (G7120 A)

1290 Infinity II High-Speed Pumps User Manual 179
8Maintenance
Pump Head Maintenance (Tool Free)
Assemble LongLife Pump Heads (G7120A)
This procedure shows how to exchange seals, and reassemble the pump head
assembly.
Exchanging seals is exemplarily shown for the primary pump head, but works in
the same way for the secondary pump head.
Tools required p/n Description
G7120-68708 HPLC System Tool Kit-Infinity-II
5067-5688 Torque wrench 1 – 25 Nm with 14 mm wrench
G4220-20013 4 mm hex bit
G4220-20015 Adapter ¼ in square to hex
G4220-20041 Bit Torx 10x25 mm
5043-1400 Pump Head Holder
5067-6197 Seal Handling Device
Isopropanol
Parts required # p/n Description
2 0905-1719 PE Seal
2 0905-1175 Wash seal (PTFE)
NOTE
Seals must be exchanged in both primary and secondary pump heads.
1 Lubricate the seals, the seal holder, and the pump
chambers with isopropanol.
2 Place the piston seal onto the designated nose of the
Seal Handling Device. The metal spring of the piston
seal must be visible.