208.375.5000
info@hydroblend.com
Fluid Powered Chemical Dispensing Systems
Troubleshooting
1. Water motor will not run
| Causes | Corrections |
|---|---|
| Water turned off to unit. | Turn water on to unit. |
| Water filter clogged. | Remove and replace filter element. |
| Discharge lines shut off or clogged. | Check to be sure lines are clear and all system valves are open. |
| Proportioner stalled. Proportioner operates intermittently, and then stalls. | Water inlet pressure has dropped. Relieve downstream back pressure. If unit restarts, there is no problem. If unit does not restart, the valve block may need to be rebuilt. |
| Weak or broken toggle lever spring. | Replace toggle lever spring. |
| Actuating Arm out of adjustment. | Relocate actuating arm to .400" from back of chrome shaft. |
2. Will not draw chemical
| Causes | Corrections |
|---|---|
| Water motor not working. | Check motor per item 1 above. |
| Proportioner concentrate adjustment set on minimum. | Re-adjust. Set on 10 to prime. |
| Pump head seals dry. | Remove top valve screw, flood cavity with water. Replace spring and valve screw carefully. Start unit. |
| Upper or lower valve screws sucking air. | Tighten fittings - hand tight only. |
| Foreign material on ball seat. Concentrate has caused balls to stick. | Remove valve balls carefully and clean. Flush and clean ball o'rings stick. Replace balls, springs and upper and lower valve screws carefully. |
| Excessive discharge backpressure. | Relieve downstream back pressure until unit is primed. |
