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Maintenance 6
Changing the Piston Syringes and Piston Noses
Piston shaft
Piston
nose
Piston shaft holderPiston nose holder
O-ring
5. Insert the new piston nose in the recess of the
piston nose holder. Make sure that the aperture is
facing outward and the O-ring is inside the seal.
6. Place the piston shaft in the piston shaft holder.
7. Screw the two parts of the tool together until tight.
8. Unscrew the tool, the piston nose should be
correctly seated on the shaft.
9. Dip the piston nose in distilled water and slide
the piston into the syringe.
10. Slide the piston up and down in the syringe five
or six times to ensure a smooth operation between
the piston and syringe.
11. Remount the syringe on the pump as described
page 6-4.