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Wear part replacement
Diaphragm replacement
Necessary tools
•
Adjustable wrench or spanner
•
Hexagon wrench
•
Torque wrench
NOTE
•
Pay attention not to loose diaphragm spacers. Always apply a proper number of dia-
phragm spacers. 0 or a few diaphragm spacers are inserted between the retainer and
plunger for the adjustment of diaphragm location. Note that the number of diaphragm
spacers varies with pump model.
• Do not access the pump in or right after operation. Wait until the drive unit of the
pump cools down.
Loosen the fitting nuts and remove a suction tube, a discharge tube
and an air bleed tube.
Remove the pump head with a hexa-
gon wrench.
Enter the pump into maintenance mode.
Press and hold the UP key and then turn ON the power. Keep the key
depressed until the maintenance mode is called up.
1
2
3
ON
START
STOP
ON
START
STOP
3 sec after powered ON
Pump head
