Aerfast AC4504 Mode D'emploi page 9

GB
33- TROUBLE - CAUSES - TROUBLESHOOTING
THE AUTHORIZED OPERATORS MUST PERFORM EXCLUSIVELY THE OPERATIONS OF THEIR SPECIFIC COMPETENCE (SEE PAR. 2.2.1) AND WITH THE CONSENT OF THE COMPANY
SAFETY MANAGER (IF THE MACHINE IS USED IN A COMPANY).
TROUBLE
The machine does not switch on
or stops and does not restart.
The machine starts many times
without using the tool.
Air does not come out from the
tool.
Pressure decrease in the air tank.
Tripping of the safety valve.
Air leak from the valve of the pres-
sure switch with stopped machine.
The machine vibrates and/or emits
a lot of noise.
Frequent starts and low yield.
The following table gives a series of situations that can occur during the use of the machine.
CAUSES
Lack of power supply.
Tripping of the restorable thermal switch due
to current overload and/or short-circuit.
Leaks from the air tube, the tool or the
pneumatic plant.
The tank is not under pressure.
Wrong adjustment of the output pressure.
The tool is damaged.
Leaks from the air tube, the tool or the
pneumatic plant.
Pressure switch faulty.
Check valve dirty or worn.
Mechanical break.
Air filters dirty.
TROUBLESHOOTING
1) Make sure that the "ON-OFF" switch is on pos. "ON (I)";
2) Check that the power supply cable plug is working and properly inserted in the suitable outlet;
3) Check that possible extensions used and the power supply outlet are working;
4) Check that the main switch of the mains is working and positioned on "ON (I)".
Follow the procedure described in par. 26.
1) Check that the pneumatic plant has not been damaged;
2) Check the integrity and the connection of the air tube and of the tool.
Switch on the machine and wait until the tank is loaded verifying the pressure on the proper pressure
gauge.
Check that the value indicated on the pressure gauge at output is greater than 0 (zero) bar.
Check the integrity and efficiency of the tool.
1) Check the integrity of the pneumatic plant.
2) Check the integrity of the air tube and of the tool.
3) Verify that the machine-air tube and air tube-tool connections are right.
4) Make sure that the condensate drain valve is well closed.
Apply to an authorized dealer.
Clean the filters (see par. 29).
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