74 Wear part replacement
Run the pump and set the stroke length to 0%. Then stop the pump.
Loosen the
fi
tting nuts and remove a suction tube,
a discharge tube and an air bleed tube.
Remove the pump head by a hexagon wrench.
Rotate and remove the diaphragm from the plunger (pump shaft).
Set a retainer and diaphragm
spacer(s) on the diaphragm screw.
Suction tube
Fitting nut
Air bleed tube
Discharge tube
Pump head
Diaphragm
Diaphragm spacer
Retainer
Plunger
1
2
3
4
5
Summary of Contents for EHN-R
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