DAB PUMPS PULSAR DRY 30/50 Manual - Page 10

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9.3.

REGULATING THE FLOAT SWITCH PULSAR

By lengthening or shortening the stretch of cable between the float and the fixed point (cable block

on the handle - Fig.4) it is possible to regulate the level at which the pump switches off (STOP).

Ensure that the float can move freely.

Ensure that the stop level does not uncover the filter.

10.

•

The suction filter in PULSAR electropumps must always be present during pump operation.

•

The pump must not be started more than 30 time in one hour so as not to subject the motor to

excessive thermal stress.

•

DANGER OF FROST: When the pump remains inactive for a long time at temperatures of

less than 0°C, it is necessary to ensure that there is no water residue which might freeze,

causing cracking of the pump components.

For PULSAR DRY electropumps, drain the pump through the drainage cap located

behind the intake coupling (Fig.2). This operation is also recommended in the case of

prolonged inactivity of the pump at normal temperature.

•

If the pump has been used with substances that tend to deposit, rinse it after use with a

powerful jet of water so as to avoid the formation of deposits or scale which would, tend to

reduce the pump characteristics.

11.

In normal operation the pump does not require any type of maintenance, thanks to the

mechanical seal lubricated in an oil bath and to the greased-for-life bearings. The

electropump can only be dismantled by competent skilled personnel, in possession of the

qualifications required by the legislation in force. In any case, all repair and maintenance

jobs must be carried out only after having disconnected the pump from the power mains..

During dismantling it is necessary to pay great attention to sharp parts which may cause

injury.

12.

Any modification not authorized beforehand relieves the manufacturer of all

responsibility. All the spare parts used in repairs must be original ones and the accessories

must be approved by the manufacturer so as to be able to guarantee maximum safety of the

machines and systems in which they may be fitted.

ENGLISH

Fig.4