Operation LABOPORT Pumps and Systems
34 Translation of original Operating Instructions, english, KNF 121211-121345 01/10
WARNING
Hazard of the pump head bursting due to excessive
pressure increase
Do not exceed max. permissible operating
pressure (see chapter 5.1, page 10).
Monitor pressure during operation.
If the pressure exceeds the maximum permissi-
ble operating pressure, immediately shut down
pump and eliminate fault (see chapter 10, page
42).
Only throttle or regulate the air or gas quantity in
the suction line to prevent the maximum permis-
sible operating pressure from being exceeded.
If the air or gas quantity in the pressure line is
throttled or regulated, make sure that the maxi-
mum permissible operating pressure of the
pump is not exceeded.
Excessive pressure (with all of the related hazards) can be
prevented by placing a bypass line with a pressure-relief valve
between the pressure and suctions sides of the pump. For
further information, contact our technical adviser.
With the pump at a standstill, open pressure and suction lines
to normal atmospheric pressure.
WARNING
Automatic starting can cause personal injury and
pump damage
When the operation of the pump is interrupted by the
thermal switch, the pump will restart automatically
after cooling down.
fter triggering of the thermal protection or in the
event of power failure, remove the pump’s mains
plug from the socket so that the pump cannot
start uncontrollably.
Attempt work on the pump or system only if the
pump/system is separated from mains power.
Pump standstill
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