1100 Series Nano Pump Service Manual 109
Repairing the Pump 3
Exchanging the Active Inlet Valve Cartridge or the Active Inlet Valve
Removing the Active Inlet Valve
1 Unplug the active inlet valve cable from the connector.
2 Disconnect the solvent inlet tube at the inlet valve. Beware of leaking
solvents.
3 Using a 14-mm wrench loosen the active inlet valve and remove the valve
from pump head.
Exchanging the Valve Cartridge
1 Using a pair of tweezers remove the valve cartridge from the actuator
assembly.
Frequency If internally leaking (backflow)
Tools required Wrench 14 mm
Parts required Active inlet valve G1312-60010
Valve Cartridge 5062-8562
Figure 14 Active Inlet Valve Parts
Valve cartridge
Valve body