1290 Infinity II High-Speed Pumps User Manual 195
8Maintenance
Replace the Outlet Valve (G7120A)
Replace the Outlet Valve (G7120A)
When
If Outlet valve is defective.
Tools required p/n Description
8710-0510 Open-end wrench 1/4 — 5/16 inch
Spanner-double open ended 14 mm
Parts required p/n Description
G4220-60028 Outlet valve
(primary pump head)
G4220-20020 Internal gold seal for Outlet Valve
Preparations
Remove the pump head assembly.
1 Remove the cap from the outlet valve. 2 Counter the outlet valve while opening the lock screw of
the heat exchanger capillary.