Reinstall the Pump Head Assembly

When

Tools required

Qty.	p/n	Description
1	5023-2524	Hex Key Set
1	5067-5688	Torque wrench 1 - 25 Nm with 14 mm wrench
1	G4220-20013	4 mm hex bit
1	G4220-20015	Adapter ¼ in square to hex

Parts required

Qty.		p/n	Description
1		79846-65501	PTFE lubricant

CAUTION

Damage of the pump drive

Starting the pump when the pump head is removed may damage the pump drive.

If needed, apply a small amount of grease on the back of the screws. Normally, the grease added during manufacturing is sufficient for a long time.
If installed, reconnect the active inlet valve cable to its connector.
If a standard seal has been installed, run the seal wear-in procedure, which includes a replacement of the purge valve frit.
For the normal phase seal, the purge valve frit should be replaced, see Exchange the Purge Valve Frit or the Purge Valve.
Run the Leak Rate Test (see Leak Rate Test).

See Also