Problem | Cause | Solution | |
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Packings are failing | Scored, damaged, or worn plungers | Install new plungers. | |
frequently or |
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Abrasive material in fluid being pumped | Install proper filtration on pump inlet plumbing. | ||
prematurely | |||
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| Inlet water temperature too high | Check water temperature. It should not | |
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| exceed 160_F (70_C). | |
| Overpressurizing pump | Do not modify any | |
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| Excessive pressure due to partially | Clean or replace tip. See Installing and | |
| plugged or damaged tip | Changing Spray Tips (page 12). | |
| Pump running too long without spraying | Never run pump more than 10 minutes without | |
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| spraying. | |
| Running pump dry | Do not run pump without water. | |
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Strong surging at inlet | Foreign particles in inlet or discharge | Clean or replace valves. | |
and low pressure on | valve or worn inlet and/or discharge |
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discharge side | valves |
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Water spitting out of | Pump running too long without spraying | Trigger gun to get fresh, cooler water in pump. | |
thermal valve |
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Note: For complete pump repair and design information see website: www.ARNORTHAMERICA.com
18309828
