Agilent 1290 Infinity Binary Pump User Manual
157
Maintenance
9
Replacing Parts of the High Pressure Filter Assembly
Replacing Parts of the High Pressure Filter Assembly
When
For removing blockages and leaks in the high pressure filter assembly. The filter frit in the outlet
valve should be replaced regularly depending on the system usage. Other parts are covered by the
Agilent Preventive Maintenance (PM) Service.
Tools required
p/n
Description
G4220-20012
Torque wrench 2 – 25 Nm
G4220-20015
Adapter ¼ in square to hex
14 mm Hex bit
Parts required
#
p/n
Description
1
01018-22707
PTFE frits (pack of 5)
1
5067-4728
Seal cap
C A U T I O N
Leakage or damaged connection
Opening the outlet of the primary pump head may cause leaks or damage the
connection between the pump heads.
➔
Do not open the outlet of the primary pump head.
N O T E
This procedure describes replacements for channel A (left pump head assembly) and can
be applied accordingly to channel B. In both cases, maintenance is done only at the
secondary pump head outlet, which hosts the filter frit.
N O T E
When replacing a PTFE frit, consider replacing the seal cap as well in order to prevent
leaks.
