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