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Pump Head Maintenance (Tool Free)
Assemble Long Life Pump Heads
Assemble Long Life Pump Heads
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 To r q ue wrench 1 – 2 5 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)
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.
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