SERVICE MANUAL
ENGLISH
RS 501
33019746(2)2010-03
27
IMPIANTO DI RACCOLTA DETRITI E POLVERE
S341006
TROUBLESHOOTING
The suction fan is noisy
Possible causes:
The motor is faulty (replace).
1.
The suction fan turns but it is not effi cient
Possible causes:
The fi lters are clogged (clean).
1.
The suction hose is clogged (clean).
2.
The suction hose is cut/torn (replace).
3.
The gasket between the suction inlet and the hopper is broken or misadjusted (replace or adjust).
4.
The hopper door gasket is broken (replace).
5.
There is no pressure at the suction fan motor drive pump (adjust the pump pressure).
6.
The suction fan does not turn
Possible causes:
The motor is faulty (replace).
1.
The distributor is stuck (repair).
2.
The pump is faulty (replace).
3.
The suction inlet does not collect debris effi ciently
Possible causes:
The suction inlet position is incorrect (check the suction inlet and skirt height and effi ciency).
1.
The skirt opening force is not suffi cient
Possible causes:
The skirt opening pressure is incorrect (adjust).
1.
The hopper does not lift/lower
Possible causes:
The distributor is stuck (repair).
1.
The cylinder gaskets are worn (repair the cylinder).
2.
The rear door does not open/close
Possible causes:
There is no voltage in the actuator (repair the electrical system).
1.
The actuator is faulty (repair/adjust the actuator cams).
2.
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