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When
In case of problems with the pump performance.
Tools required
p/n
G4220-20012
G4220-20013
G4220-20015
Parts required
#
1
1
1
1
Preparations
• Switch off pump at the main power switch
• Remove the front cover
Limitation of life time
C A U T I O N
The pump head assembly is an exchange part which cannot be reassembled with
standard tools. Disassembling the pump head will strongly limit its life time.
➔
Damage of connections
C A U T I O N
Disassembling the flow connection between the both pump heads of one pump head
assembly (solvent channel) can damage the connection and cause leaks.
➔
Damage of internal parts
C A U T I O N
➔
➔
Agilent 1290 Infinity Binary Pump User Manual
Description
Torque wrench 2 – 25 Nm
4 mm hex bit
Adapter ¼ in square to hex
p/n
G4220-60200
G4220-60210
G4220-60400
G4220-60410
Do not disassemble the pump head assembly.
Do not disconnect the flow connection between the pump heads.
Do not apply a strong force to the screws of the pump head.
Use a torque hex key for that purpose.
Description
Pump Head Assembly Channel A (left) with Seal Wash Option
Pump Head Assembly Channel B (right) with Seal Wash Option
Pump Head Assembly Channel A (left) without Seal Wash Option
Pump Head Assembly Channel B (right) without Seal Wash Option
Maintenance
Replacing the Pump Heads
9
135
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