Troubleshooting
WARNING
To reduce the risk of serious bodily injury, including fluid injection, splashing in the eyes or on the skin, or injury from moving parts, always follow the Pressure Relief Procedure on page 5 whenever the pump is shut off, before installing, cleaning, adjusting, removing or servicing the valve or any part of the system, and whenever you stop spraying.
NOTE: Check all possible remedies in the table below before you disassemble the valve.
Problem | Cause | Solution |
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No pressure regulation | Damaged diaphragm (26 or 27). | Replace diaphragm. See page 7. |
| Damaged valve actuator (9). | Replace valve actuator. See page 7. |
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|
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Pressure creeps above | Damaged diaphragm (26 or 27). | Replace diaphragm. See page 7. |
setting | Ball (5) or seat (6) leaking or dirty. | Replace the cartridge or clean seat. |
| ||
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| See page 7. |
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|
Pressure drops below setting | Empty/clogged supply line. | Fill/flush supply line. |
| Using valve beyond its rated flow | Install valve for each spray gun or |
| capacity. See page 13. | dispensing valve. |
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|
|
Fluid leaks from under spring | Loose spring housing. | Tighten screws (19) in sequence and to |
housing (16) | Damaged diaphragm (26 or 27). | torque shown in Fig. 2 on page 7. |
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| |
|
| Replace diaphragm. See page 7. |
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