Remove The Piston Cups - Nordson ProBlue P4 Customer Product Manual

D-20
SP Pump Diagnostics and Repair

Remove the Piston Cups

Part 1024496_06
See Figure D‐10.
1. While holding the piston in‐place by its wrench flats, remove the M6
torque nut (1).
2. Remove the two piston cups (4) and the piston seal washers (2 and 3).
Piston cups
P/N 163039
Special Reassembly Instructions
S
To prevent damage to the upper piston cup when reinstalling the cylinder,
install only the bottom seal washer, the bottom piston cup, center seal
washer, and the torque nut (loose). The remaining piston cup and washer
are not installed until after the cylinder is in‐place.
Refer to Remove the Actuator and Air Manifold and the Cylinder
Assembly.
Check/Repair
Not torn or deteriorated
Pliable
Apply Parker lubricant
during reassembly
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