1290 Infinity Quaternary Pump User Manual 191
Maintenance
9
Install the Pump Head Assembly
Install the Pump Head Assembly
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
Damage to the pump head
Using a wrong torque will damage the pump head.
➔
For handling the torque wrench, setting and applying
the right torque, consult the manual of your torque
wrench.
1
Install the new pump head assembly by tightening the
screws step by step. Apply 5 Nm using a torque hex key,
which is included to the 1290 Infinity Service Kit
p/n 5067-4699.
2
Insert the inlet weaver to the inlet valve (1, 2). Fix the
weaver with the plastic screw to the inlet valve (3).
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