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Disassembling the Pump Head
When
If parts inside the pump head need to be replaced
Tools required
p/n
G4220-20012
G4220-20013
G4220-20014
G4220-20015
8710-0510
Preparations
Remove the pump head assembly as described in
This procedure describes replacements for the pump heads of channel A. Replacement for
N O T E
channel B can be done accordingly. The primary pump head does not have a heat
exchanger. Seal wash parts are optional for both pump heads.
1
Open the 2.5 mm hex screw at the top of the primary
pump head, which fixes the connection capillary of the
heat exchanger. Then lift up the capillary and remove it
from the primary pump head.
Heat exchanger with connection
capillary
Primary pump head
Secondary pump head
Agilent 1290 Infinity Binary Pump User Manual
Description
Torque wrench 2 – 25 Nm
4 mm hex bit
2.5 mm Hex Bit
Adapter ¼ in square to hex
Wrench open 1/4 — 5/16 inch
2
Remove both pump heads from the link plate by pushing
the clips at the rear of the plate.
Link plate
Clips
Disassembling the Pump Head
"Replacing the Pump Heads"
9
Maintenance
on page 134, steps 1-4.
139
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