CAUTION!
Possible environmental and material damage
The screw plug in the oil filler neck is factory-fitted
and, during operation, prevents any pressure
equalisation between the power end housing and
the surroundings. This ensure that oil can be
pushed from the power end housing.
– Replace the screw plug on the oil filler neck by
the air vent plug supplied.
– Retain the sealing plug for subsequent trans‐
port of the unit.
CAUTION!
Liquid end may be damaged
– Always fit a filter in the suction line with feed
chemicals with a particle size greater than 0.3
mm
CAUTION!
Warning of unnoticed diaphragm rupture
Only above approximately 2 bar system back pres‐
sure is a signal generated in the event of the rup‐
ture of a diaphragm.
– Only rely on the diaphragm rupture sensor with
back pressures of greater than 2 bar.
– Check that a back pressure valve is installed in
the discharge line.
CAUTION!
Feed chemical could escape
– Check suction and discharge lines, and liquid
end with valves for leak-tightness and tighten if
necessary.
– Check whether the necessary flushing pipes or
bleed lines have been connected.
CAUTION!
Prior to commissioning, check that the power end
motor and corresponding ancillary equipment is
connected in compliance with the regulations!
CAUTION!
When using pumps with speed control, observe
the instructions in the frequency converter oper‐
ating instructions.
Start up and operation
47
