User manual

140 1260 Nanoflow Pump User Manual
9 Maintenance
Exchanging the Active Inlet Valve Cartridge or the Active Inlet Valve
Replacing the Active Inlet Valve Body
1 Move the AIV cartridge from the old valve body to the new one. Optionally,
you may use a new AIV cartridge.
2 Insert the new valve into the pump head. Using the 14 mm wrench turn the
nut until it is hand tight.
3 Position the valve so that the solvent inlet tube connection points towards
the front.
4 Using the 14 mm wrench tighten the nut by turning the valve in its final
position (not more than a quarter turn). Do not overtighten the valve. The
solvent inlet tube connection should point to the right corner of the pump
head.
5 Reconnect the inlet tube and the active inlet valve cable to the connector at
the Z-panel.
When • If leaking from the bottom of the active inlet valve body
• If the soleniod is defective
Tools required Wrench 14 mm
Parts required # Description
G1312-60025 Active inlet valve without cartridge
5062-8562 Active Inlet Valve Cartridge (400 bar), optional
NOTE
Make sure you are in normal mode.