5-1
Troubleshooting
© 2024 Nordson Corporation
1044131-06
Section 5
Troubleshooting
WARNING:
safety instructions in this document and all other related documentation.
This section contains troubleshooting procedures. These procedures cover only the most
common problems that you may encounter. If you cannot solve the problem with the
information given here, contact your local Nordson representative for help.
No. Problem Page
1. Pump fails to start or stops while operating and fails to restart 5-2
2. Excessive or constant air leakage from air motor or air valve 5-2
3. Pump strokes irregularly when spray device is triggered 5-3
4. 5-3
5. Pump fails to siphon coating material 5-4
6.
Pump continues to operate even after drain and circulation valves
5-4
7. Pump does not stroke when circulation valve opened 5-5
8. 5-5
9. Fading or narrowing spray pattern 5-5
10.
Spray pattern has tails of unatomized coating material at the outer
edges
5-5
- Minimizing pressure deviations 5-6
- Correcting siphon problems 5-6
- 5-7
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