Disassemble The Lower Ball Seat And The Pressure Ball Assemblies; Special Reassembly Instructions - Nordson ProBlue P4 Manuel

D‐28 SP Pump Diagnostics and Repair

Disassemble the Lower Ball Seat and the Pressure Ball Assemblies

Part 1024496_05
See Figure D‐14.
1. Pull the siphon ball cage (1) off of the lower ball seat (4), and then remove
the siphon ball (2).
2. Remove the O‐ring (3) from the lower ball seat.
See Figure D‐15.
3. Unscrew the pressure ball seat (3) from the piston (1), and then remove
the pressure ball (2).
Siphon ball
P/N 900001
Pressure ball
P/N 900000
Ball seats
P/N 1017320
Siphon ball cage
P/N 503696
Lower ball seat O‐ring
P/N 945037
NOTE: Clean all hydraulic components in a container of Type R fluid before
reassembling them.

Special Reassembly Instructions

S
If the siphon ball cage does not fit tightly onto the lower ball seat, gently
bend the legs of the cage together to create a spring‐fit onto the seat.
Check/Repair
Char buildup
Char buildup or damage
Char buildup or damage
Nicked, gouged,
deteriorated, or swollen
Apply Never‐seez during
reassembly
Apply Parker lubricant
during reassembly
E 2011 Nordson Corporation