95
Pump Head Maintenance (Quaternary and Flexible Pumps)
3
Assembling the Pump Head
19
Bring the pump drive to the maintenance position using
the Lab Advisor user interface, see “Disassembling the
Pump Head” on page 54. Both pump drives must be
retracted.
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.
20 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.
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