Troubleshooting
Electrical Troubleshooting
Problem | Cause | Solution |
|
|
|
Voltage still present at gun after fol- | ES ON/OFF valve is not turned OFF. | Turn OFF. |
lowing the Fluid Voltage Discharge |
|
|
and Grounding Procedure |
|
|
|
|
|
| Did not wait long enough for voltage | Wait longer before touching electrode |
| to discharge. | with grounded rod. Check for bleed |
|
| resistor failure. |
|
|
|
| Air pocket in fluid line leaves fluid | Determine cause and correct. Purge |
| near gun isolated. | air from fluid line. |
|
|
|
| Voltage isolation system failed. | Service voltage isolation system. |
|
|
|
| Grounding cylinder not operating. | Check resistance of grounding cylin- |
|
| der, page 33. Replace if needed. |
|
|
|
Poor wrap. | ES ON/OFF valve OFF (0).* | Turn ON (I). |
|
|
|
| Gun air pressure too low. | Check air pressure to gun; minimum |
|
| 40 psi (0.28 MPa, 2.8 bar) needed at |
|
| gun for full voltage. |
|
|
|
| Atomizing air pressure too high. | Decrease. |
|
|
|
| Fluid pressure too high. | Decrease. |
|
|
|
| Incorrect distance from gun to part. | Should be |
|
|
|
| Poorly grounded parts. | Resistance must be 1 megohm or |
|
| less. Clean workpiece hangers. |
|
|
|
| Faulty gun resistance. | See Test Gun Resistance on page |
|
| 30. |
|
|
|
| Fluid leaks from the packing (26d) | Clean the packing rod cavity. |
| and causes a short. | Replace the packing rod. See page |
|
| 45. |
|
|
|
| Faulty turbine alternator. | Be sure the plug is in place on the |
|
| back of the turbine alternator hous- |
|
| ing. Remove and test the turbine |
|
| alternator. See page 48. |
|
|
|
| The KV | Check the lever actuation; replace if |
|
| needed. |
|
|
|
| Spilled paint, dried paint, or other | Clean interior of enclosure. |
| contaminants inside WB100 enclo- |
|
| sure, causing a short circuit. |
|
|
|
|
309293J | 39 |
