Replace the Inlet Valve (G7120A)

When

Tools required

Qty.		p/n	Description
1			Wrench, 14 mm
1		5067-5688	Torque wrench 1 - 25 Nm with 14 mm wrench

Parts required

Qty.		p/n	Description
1		G4220-60022	Inlet valve (primary pump head)

Qty.

p/n

Description

G4220-60022

Inlet valve

(primary pump head)

NOTE

For best performance, lifetime and to avoid leaks, use a torque wrench set to approx. 10 Nm for fixing the inlet valve.

Close the shutoff valves to avoid solvent leaks.
Unscrew the tubing at the inlet valve.
With a 14 mm wrench, unscrew the inlet valve and remove it.
Install inlet valve and tighten it at approx. 10 Nm with a torque wrench (14 mm).
Attach the inlet tubing to the inlet valve.
Open the shutoff valves and purge the system to remove air.