Agilent Technologies 1290 Infinity II - Replace the Heat Exchanger (G7120 A)

1290 Infinity II High-Speed Pumps User Manual 175
8Maintenance
Pump Head Maintenance (Tool Free)
Replace the Heat Exchanger (G7120A)
Tools required p/n Description
Wrench, 19 mm
5023-2501 Screwdriver Torx-T10
5067-5688 Torque wrench 1 – 25 Nm with 14 mm wrench
G4220-20013 4 mm hex bit
G4220-20015 Adapter ¼ in square to hex
G4220-20041 Bit Torx 10x25 mm
Parts required # p/n Description
1 G4220-81013 Heat Exchanger Channel A
(secondary pump head only)
OR 1 G4220-81012 Heat Exchanger Channel B
(secondary pump head only)
Preparations
• Remove the pump head assembly from the pump
• Remove the secondary pump head from the link plate
CAUTION
Loss of small spacer fitting
Inside the secondary pump head is a small spacer fitting, which can be
dropped easily when removing the heat exchanger.
 The heat exchanger does not need to be removed for pump head
maintenance.
1 Remove the 19 mm screw at the front of the secondary
pump head.
2 Remove the front plate.