Table of Contents
vi
Part 1024496_06
2014 Nordson Corporation
SP Pump Diagnostics and Repair D-1............................
Introduction D‐1................................................
Pump Function D‐1.............................................
Pump Isolation Valve D‐2...................................
Pressure Discharge Valve D‐2...............................
Pump Diagnostics D‐4...........................................
Pump Disassembly and Reassembly D‐6...........................
Melter Preparation D‐6........................................
Required Tools and Materials D‐6..............................
Tools D‐6.................................................
Service Parts D‐7..........................................
Supplies D‐7..............................................
Remove the Pump from the Melter D‐8..........................
Special Reassembly Instructions D‐8.........................
Remove the Actuator and Air Manifold and the Cylinder Assembly D‐10
Special Reassembly Instructions D‐10.........................
Remove the Magnetic Actuator Assembly D‐12....................
Remove the Valve Spool and Sleeve D‐15........................
Special Reassembly Instructions D‐16.........................
Remove the Shifter Fork D‐18...................................
Special Reassembly Instructions D‐18.........................
Remove the Piston Cups D‐20...................................
Special Reassembly Instructions D‐20.........................
Remove the Pump Frame and the Insulator D‐22...................
Special Reassembly Instructions D‐22.........................
Remove the Lower Ball Seat Assembly and the Piston D‐26.........
Special Reassembly Instructions D‐26.........................
Disassemble the Lower Ball Seat and the Pressure Ball
Assemblies D‐28..............................................
Special Reassembly Instructions D‐28.........................
Remove the O‐ring and the Pump Seal D‐30......................
Special Reassembly Instructions D‐30.........................
Pump Assembly Parts List D‐32....................................
Pump Service Kit D‐34.........................................
Other Pump Maintenance Kits D‐34..............................
Schedule of Fasteners D‐34.....................................
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