9.2 FLOAT SWITCH SETTING
By lengthening or shortening the stretch of cable between the float
a
nd the fixed point (Float
locking) it is possible to regulate the level at wh
i
ch the pump switches off. Ensure that the float
witch can move freely when the pump is operating.
Make sure the stop level does not uncover the filter.
10 PRECAUTIONS
The suction filter must always be present when during pump is operating.
The pump must not be started more than 30 ti
m
e
s
in one hour so as not to subject the motor to
excessive thermal stress.
DANGER OF FROST
: When the pump remain s inactive at temperatures of less than 0°C, it is
necessary to ensure that there is no water resi
d
ue which might freeze, and cause cracking of
the pump components.
If the pump has been
u
sed with substances that tend to deposit, rinse it after
u
se with a
powerful jet of water so as to avoid the forma
t
ion of deposits or scale which would, tend to
reduce the pump characteristics.
11 MAINTENANCE AND CLEANING
In normal operation the pump does not require any type
of maintenance, thanks to the oil bath
lubricated seal and to the greased-for-life bearings.
The electro pump can onl
y
be dismantled b
y
skilled and qualified personnel, i
n
possession of the technical qualifications required by the specific regulations in force.
In any case, all repair and maintenance jobs
m
ust be carried out only after having disconnected
the pump from the power mains, once made sure
t
hat it cannot suddenly begin working. During
dismantling it is necessary to pay great attent
i
on to sharp parts which may cause injury. The
cutting edge flange of the electro
pump is provided of aspiration fans. It is advisable, every now and
then, to clean these fans to avoid a loss of efficiency. Best cleaning is obtained through a throw of
water. Sand and other abrasive materials cause precocious wear and tear, as
w
ell as loss of
performances.
12 MODIFICATIONS AND SPARE PARTS
Any
modification
not
authorized
beforehand
relieves
the
manufacturer
of
all
responsibility.
All the spare parts used in repairs must be original.
All accessories must be approved by the manufacturer so as to be able to ensure maximum safety
of the machines and systems in which they may be fitted.
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