TROUBLESHOOTING
| PROBLEM |
|
|
| CAUSE |
|
|
|
| ACTION | |||||
| Pump | motor |
|
| 1. Low voltage. |
|
|
| 1. | Check power line for proper voltage. |
| ||||
| will not start |
|
| 2. | Open | circuit | in |
|
| 2. | Inspect all lead connections on motor, |
| |||
|
|
|
|
|
| motor, | switch | or |
|
|
| switch and cord for loose or open connec- |
| ||
|
|
|
|
|
| cord. |
|
|
|
|
|
| tions. |
| |
|
|
|
|
| 3. | Tank already pres- |
|
| 3. | Motor will not start if tank pressure is too |
| ||||
|
|
|
|
|
| surized. |
|
|
|
|
| high. |
| ||
|
|
|
|
| 4. | Thermal | overload |
|
| 4. Thermal overload switch has tripped, wait |
| ||||
|
|
|
|
|
| switch. |
|
|
|
|
|
| for motor to cool, then reset switch by |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| pressing red button. |
|
|
|
|
|
|
|
|
|
|
|
|
|
| |||
| Pump | motor |
|
| 1. | Short circuit in | line |
|
| 1. | Inspect cord or plug for damaged insula- |
| |||
| starts; | but |
|
|
| cord or plug. |
|
|
|
| tion and shorted wires. |
| |||
| fuses | blow or |
|
| 2. Short circuit in motor |
|
| 2. | Inspect all connections on motor for loose |
| |||||
| circuit | break- |
|
|
| or | loose | connec- |
|
|
| or shorted terminals or worn insulation. |
| ||
| ers trip. |
|
|
| tions. |
|
|
|
|
|
|
|
| ||
|
|
|
|
| 3. | Incorrect | fuses | or |
|
| 3. | Install correct fuses or circuit breakers. |
| ||
|
|
|
|
|
| circuit | breakers | in |
|
|
|
|
| ||
|
|
|
|
|
| power line. |
|
|
|
|
|
| |||
|
|
|
|
|
|
|
|
|
|
|
|
| |||
| Low pressure |
|
| 1. | Air | leaks | in flexible |
|
| 1. | Check air hoses and all connections for |
| |||
| at the tool |
|
|
| hoses. |
|
|
|
|
|
| leaks. |
| ||
|
|
|
|
| 2. | Pressure gauge bad. |
|
| 2. | Check pressure in line with known good |
| ||||
|
|
|
|
|
|
|
|
|
|
|
|
|
| gauge. |
|
|
|
|
|
| 3. | Pressure | regulator |
|
| 3. | Adjust pressure regulator, if no improve- |
| |||
|
|
|
|
|
| bad. |
|
|
|
|
|
| ment inspect regulator for leaks or |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
| replacement. |
|
|
|
|
|
|
|
|
|
|
| ||||||
| Low pressure |
|
| 1. | Air leaks in tanks or |
|
| 1. Check air tanks, pipes and all connections |
| ||||||
| at the tanks |
|
|
| delivery pipes. |
|
|
|
| for leaks. |
| ||||
|
|
|
|
| 2. | Drain valve open. |
|
| 2. | Close drain valve. |
| ||||
|
|
|
|
| 3. | Safety valve releas- |
|
| 3. | Replace safety valve. |
| ||||
|
|
|
|
|
| ing below 125 PSI. |
|
| 4. | Inspect and clean air filter. |
| ||||
|
|
|
|
| 4. | Air filter clogged. |
|
|
| 5. | Check gaskets on cylinder head assem- |
| |||
|
|
|
|
| 5. | Gaskets leaking. |
|
|
|
| bly, repair or replace as needed. |
| |||
|
|
|
|
| 6. | Worn rings. |
|
|
| 6. | Inspect and replace pump piston rings. |
| |||
|
|
|
|
|
|
|
|
|
|
| |||||
| Compressor |
|
| 1. | Improper oil level. |
|
| 1. | Check oil level and add oil. |
| |||||
| knocking |
|
| 2. | Air filter clogged. |
|
|
| 2. | Inspect and clean air filter. |
| ||||
|
|
|
|
| 3. | Piston |
| assembly |
|
| 3. | Inspect and repair piston and connecting |
| ||
|
|
|
|
|
| loose. |
|
|
|
|
|
| rod. |
| |
|
|
|
|
|
|
|
|
|
|
| |||||
| Motor runs hot |
|
| 1. | Cooling fins dirty. |
|
| 1. | Clean cylinder fins and motor area. |
| |||||
|
|
|
|
| 2. | Air filter clogged. |
|
|
| 2. | Inspect and clean air filter. |
| |||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Model H4517/H4518Air Compressors |
