Troubleshooting
Troubleshooting
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Problem | Cause | Solution | |
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| Pump stroke is adjusted to zero. | Adjust pump stroke for desired out- | |
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| put. See page 8. | |
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Pump does not flow | Pump outlet is plugged. | Clean/flush pump outlet. | |
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Outlet check valve damaged. |
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| Replace pump. | |
| Pump inlet check ball and/or seat is | ||
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| damaged or worn. |
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| Pump stroke is adjusted to minimal | Adjust pump stroke for desired out- | |
| travel. | put. See page 8. | |
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Pump has low flow | Pump inlet check ball and/or seat is |
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| damaged or worn. | Replace pump. | |
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| Outlet check valve damaged. |
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| Piston and bore are worn. |
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Pump has low discharge pressure |
| Replace pump. | |
Pump inlet check valve and/or seat | |||
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| are damaged or worn. |
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| Inlet pressure exceeds outlet check | Reduce inlet pressure to below out- | |
Fluid flow from pump outlet when | pressure. | let check pressure. | |
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pump is not running | Pump outlet check ball and/or seat | Replace pump. | |
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| is damaged or worn. |
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| Possible debris in inlet check | Perform Maintenance, page 12. | |
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Sight well fills with oil* | Pump inlet check ball and/or seat is | Replace pump. | |
damaged or worn | |||
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| Piston and bore are worn |
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Sight well runs dry* | Restriction in Drip or Suction tube | Perform Maintenance, page 12. | |
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Air leak in sight well | Replace pump. | ||
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| Pump air bound | Follow Setup section appropriate for | |
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| your pump model, pages | |
Sight well remains constant and no |
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Pump regulation set too low | Increase pump regulation. | ||
lubricant drips from tube | |||
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| Camshaft speed too slow | Increase camshaft speed (see Table | |
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| 1, page 10. | |
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Cloudy or broken sight glass (Suc- | NA | Replace sight glass using GBL7500 | |
tion or Gravity Fed Pumps only) |
| Sight Glass Replacement Kit | |
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| 24T306. See Maintenance, page | |
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| 12. | |
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* Oil level in sight well will rise and fall during normal operation. If condition persists refer to Cause/Solution sections.
3A2257C | 11 |
