TROUBLESHOOTING
Risk of Unsafe Operation. Unit cycles automatically when power is on. When servicing, you may be exposed to voltage sources, com- pressed air, or moving parts. Before servicing unit unplug or disconnect elec- trical supply to the air compressor, bleed tank of pressure, and allow the air compressor to cool.
PROBLEM | CAUSE |
|
|
| CORRECTION | |
Excessive | Pressure switch does |
| Move Auto/Off lever to the "Off" | |||
tank pressure | not shut off motor when |
| position, if the unit does not shut off | |||
- safety valve | compressor reaches |
| contact a Trained Service Technician. | |||
pops off |
|
|
|
|
| |
| Pressure switch "cut- |
| Contact a Trained Service Technician. | |||
| out" too high. |
|
|
|
|
|
Air leaks at | Tube fittings are not |
| Tighten fittings where air can be | |||
fittings | tight enough. |
| heard escaping. Check fittings | |||
|
|
| with soapy water solution. | |||
|
|
| DO NOT OVER TIGHTEN. | |||
Air leaks at | Check valve seat |
| A defective check valve results in | |||
or inside | damaged. |
| a constant air leak at the pressure | |||
check valve |
|
| release valve when there is pressure | |||
|
|
| in the tank and the compressor | |||
|
|
| is shut off. Replace check valve. | |||
|
|
| Refer the To Replace or Clean | |||
|
|
| Check Valve in the Service | |||
|
|
| and Adjustments section. | |||
Air leaks at | Defective pressure |
| Contact a Trained Service Technician. | |||
pressure switch | switch release valve. |
|
|
|
|
|
release valve |
|
|
|
|
|
|
Air leaks in air | Defective air tank. |
| Air tank must be replaced. | |||
tank or at air |
|
| Do not repair the leak. | |||
tank welds |
|
|
|
|
| Risk of bursting. |
|
|
|
|
| ||
|
|
|
|
|
| |
|
|
| Do not drill into, weld or otherwise | |||
|
| modify air tank or it will weaken. | ||||
|
| The tank can rupture or explode. | ||||
Air leaks | Leaking seal. |
| Contact a Trained Service Technician. | |||
between head |
|
|
|
|
|
|
and valve plate |
|
|
|
|
|
|
Pressure | It is normal for "some" |
| If there is an excessive amount of | |||
reading on | pressure drop to occur. |
| pressure drop when the accessory | |||
the regulated |
|
| is used, adjust the regulator as | |||
pressure gauge |
|
| instructed in the Operation section. | |||
(if equipped) |
|
| NOTE: Adjust the regulated | |||
drops when |
|
| pressure under flow conditions | |||
an accessory |
|
| (while accessory is being used). | |||
is used |
|
|
|
|
|
|
Air leak from | Possible defect in |
| Operate safety valve manually | |||
safety valve | safety valve. |
| by pulling on ring. If valve still | |||
|
|
| leaks, it should be replaced. | |||
N020206 | 20 - ENG |
