SP Pump Diagnostics and Repair
D-22
Part 1024496_06
2014 Nordson Corporation
Remove the Pump Frame and the Insulator
See Figure D‐11.
1. Remove the four hex‐head screws (1) and washers (4).
2. Lift the pump frame (2) and the insulator (3) off of the piston.
See Figure D‐12.
3. If necessary (see Checks/Repairs), remove the retaining ring (1) and the
U‐cup (2) from the frame.
Check/Repair
Pump insulator
P/N 1017307
Cracked or warped
U‐cup piston seal
P/N 952100
Nicked, cut, or
deteriorated
Apply Parker lubricant
during reassembly
Special Reassembly Instructions
Before reinstalling the insulator and pump frame, place the O‐ring and
piston seal over the piston.
NOTE: Install the pump seal with the open side facing the pump body.
Install the insulator with the words “This side up” facing upwards.
Use the insulator to seat the O‐ring and pump seal into the groove in the
pump body.
The tapered end of the insulator and pump frame face the filter.
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