Agilent InfinityLab LC Series 1260 Infinity II Isocratic- and Quaternary Pumps User Manual 153
Maintenance
8
Remove the Pump Head Assembly
Remove the Pump Head Assembly
When • Exchanging the seals
• Exchanging the pistons
• Exchanging seals of the seal wash function
Tools required p/n Description
8710-0510 Open-end wrench 1/4 — 5/16 inch
5023-2524 Hex Key Set + Driver
Preparations • Switch off the pump at the main power switch and unplug the power cable.
• Use an optional solvent shutoff valve or lift up solvent filters in solvent reservoirs for avoiding
leakages.
• Open the doors of the module.
• If an active inlet valve is installed, disconnect the active inlet valve cable.
Damage of the pump drive
Starting the pump when the pump head is removed may damage the pump drive.
➔ Never start the pump when the pump head is removed.
1
Using a 1/4 inch wrench disconnect the valve capillary
from the outlet valve.
2
Disconnect the solvent inlet tube from the inlet valve.
Beware of leaking solvents due to hydrostatic
pressure.