Maintenance
Tightening Threaded Connections
Before each use, check all hoses for wear or damage. Replace as necessary. Check that all threaded con- nections are tight and
NOTE: Periodically,
Cleaning
Clean the outside of the equipment daily, using a soft cloth and compatible solvent.
Clean the suction tube (L) and inlet strainer daily, using a compatible solvent.
Clean the air filter (D) in your main air line at least once a week.
Storage
Before storing the pump, always flush it and relieve pressure.
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based on the pump’s service history. This is especially impor- tant for prevention of spills or leakage due to dia- phragm failure.
Troubleshooting
WARNING
To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 11.
1.Relieve the pressure before checking or servicing the equipment.
2.Check all possible problems and causes before disassembling the pump.
PROBLEM | CAUSE | SOLUTION |
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Pump will not run. | Closed air line valve. | Open valve. |
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| Inadequate air supply, or clogged/ | Increase air supply. Do not exceed |
| restricted air line. | maximum air inlet pressure. |
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| Open or clear air line. |
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| Clean air filter. |
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| Clogged pump, fluid line, or spray | Clear, service. Flush regularly. Do |
| gun. | not allow fluid to set up in the pump |
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| and lines. |
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| Stuck or damaged pump air valve. | Disassemble and clean air valve. |
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| Replace worn parts. See page 18. |
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| Use filtered air. |
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| Ruptured diaphragm. | Replace diaphragms. See page 17. |
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| Air valve plate installed incorrectly. | Align plate with center housing. See |
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| page 19. |
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