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Pump Head Maintenance (Quaternary and Flexible Pumps)
3
Secondary Pump Head
Replacing the Heat Exchanger
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
G4220-81013 Heat Exchanger (secondary pump head only)
Preparations • Remove the pump head assembly from the pump
• Remove the secondary pump head from the link plate
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.
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