M A I N T E N A N C E
• Before service, maintenance or repair begins, the
fan must be tension free and the impeller must
have stopped.
• The fan must be cleaned when needed, at least once
per year to maintain the capacity and to avoid
unbalance which may cause unnecessary damages
on the bearings.
• The fan bearings are maintenance-free and should
be renew only when necessary.
• When cleaning the fan, high-pressure cleaning or
strong dissolvent must
not
be used. Cleaning
should be done without dislodging or damaging the
impeller
.
Make sure that there is no noise from the
fan.
F A U L T D E T E C T I O N
1
. Make sure that there is tension to the fan.
2.
Cut the tension and verify that the impeller is not
blocked.
3.
Check the thermo protector/motor contact. If it is
disconnected the cause of overheating must be
taken care of, not to be repeated. The fan has auto-
matic thermo protector where the resetting will be
done automatically when the motor is cold.
4.
Make sure that the capacitor is connected, accor-
ding to the wiring diagram.
5.
If the fan still does not work, the first thing to do
is
to change the capacitor.
6
. If nothing of this works, contact your fan supplier.
7
. If the fan is returned to the supplier, it must be
cleaned, the motor cable undamaged and a detai-
9
W I R I N G D I A G R A M
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