Biral LX 321 [24/56] English

Depending on the temperature and system pressure, hot pump

medium can emerge in the form of liquid or steam.

- Never remove the screw plug completely –

the pump can suck in air.

Powerful escape of liquid.

- Switch the pump on and off 5 to 8 times until

only water emerges at the screw plug.

- Tighten screw plug.

- Increase system pressure again.

- Switch pump on.

english

6.4 Deblocking

Switch pump off.

Shut the stop valves before and after the pump.

Risk of burning if the pump is touched.

Pump and motor can be very hot.

Depending on the operating pressure

(sealing, slide valve), the pump rotor can become

blocked.

There is a risk of scalding

Depending on the temperatur and system pressure, hot pump

medium can escape in the form of liquid or steam.

Warning

6.3 Operating check

The pump runs so quietly that a metal rod or a srewdriver has to

be placed on the pump and held to you ear when making the

acoustic operating check.

After undoing the screw plug (water emerges through

the bearing clearance) deblock the rotor shaft with a screwdriver.

Rotate the shaft end until the resistance decreases.

Fit screw plug.

Open the stop valves before and after the pump.

Switch pump on.