salmson Rocsan neo Installation Et Mise En Service page 51

9.5.1 Recommended maintenance measures
Regular inspection of power consumption and the op-
erating voltage in all three phases is recommended for
smooth operation. In normal operation, these values
remain constant. Slight fluctuations depend on the
characteristics of the fluid. Power consumption can
provide an early indication of damage or malfunctions
in the impeller, bearings or motor, which can be recti-
fied. Larger voltage fluctuations strain the motor wind-
ing and can cause the pump to break down. Regular in-
spections can therefore largely prevent major second-
ary damage and reduce the risk of total breakdown. In
this regard, it is recommended to use remote monitor-
ing for regular inspections.
9.5.2 Visual inspection of the power supply cable
The power supply cables must be checked for:
▪ Bubbles
▪ Cracks
▪ Scratches
▪ Abrasion
▪ Crushing
If the power supply cables are damaged, the pump
must be decommissioned immediately! Customer ser-
vice must replace the damaged power supply cable.
The pump may only be started up again once the dam-
age has been properly remedied.
CAUTION! Water may penetrate into the pump due to
the damaged power supply cables! Water ingress
leads to total damage of the pump.
9.5.3 Visual inspection of accessories
Accessories must be checked for:
▪ Correct fixation
▪ Smooth function
▪ Wear symptoms
Detected defects must be repaired immediately or the
accessories must be replaced.
9.5.4 Visual inspection of the housing for wear
The housing parts are not allowed to have any apparent
damage. Contact customer service if defects are detec-
ted!
9.5.5 Function test of the monitoring equipment
To test resistances, the pump must be cooled down to
the ambient temperature!
9.5.5.1 Test the resistor of the temperature sensor
Measure the resistor of the temperature sensors with
an ohmmeter. The bimetallic strips must have a meas-
ured value of 0 Ohm (passage).
Installation and operating instructions Rocsan neo
Maintenance and repair
9.5.6
Fig. 11: Sealing chamber: Oil change
Oil change in sealing chamber
WARNING
Operating fluid under high pressure!
A pressure of several bar can build up in the motor!
This pressure escapes when the screw plugs are
opened. If screw plugs are opened without due cau-
tion, they can be ejected at high speed! To avoid in-
juries, observe the following instructions:
• Adhere to the prescribed sequence of work
steps.
• Unscrew the screw plugs slowly, but never un-
screw them completely. As soon as the pressure
escapes (audible whistling or hissing of air), stop
turning the screw plug any further!
• When the pressure has completely dissipated,
fully unscrew the screw plugs.
• Wear closed safety goggles.
WARNING
Scalding due to hot operating fluids!
Hot operating fluids can also spray out when the
pressure is escaping. This can result in scalding! To
avoid injuries, the following instructions must be
observed:
• Allow the pump to cool down to the ambient
temperature then open the screw plugs.
• Wear closed safety goggles or face protection
and gloves.
1 Screw plug sealing chamber
‡ Protective equipment has been put on!
‡ Pump has been dismantled and cleaned (decontamin-
ated if required).
1. Position the pump horizontally on a firm surface. The
screw plug points upwards. WARNING! Risk of hands
being crushed. Ensure that the pump cannot fall over
or slip away!
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