Operating Check; Deblocking - ITT LX Serie Instructions D'installation Et D'entretien

LX321_HX302 03.11.2006
32
10:16 Uhr Seite 32
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.

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.

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.
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.
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.
Depending on the operating pressure
Warning
(sealing, slide valve), the pump rotor can become
blocked.