DOC No: 7936 REV
D
Maintenance
Excessive wear to the pump can result in driven magnet rub on the
magnet cup. This can generate high surface temperatures or degrade the
capability of the pressure boundary. Remove the pump from service and
replace or repair if pump performance degrades significantly or the pump
becomes noisy.
Ensure that heavy deposits of dust are not allowed to accumulate. Clean
the pump periodically.
The pump cannot be drained completely, a certain amount of liquid will
remain in the magnet cup area. Ensure that the pump is either flushed
with a suitable flushing agent or precautions are taken against the effect
of any remaining liquid during servicing. When the pump has been
handling flammable, toxic or hazardous fluid, the pump internals must
be properly decontaminated by suitably qualified personnel. The Material
Safety Data Sheet for the pumped liquid must be referred to for correct
procedures and precautions to be followed when handling the liquid.
Micropump I-Drive motors are designed to be maintenance free and, apart from manual
speed control models, require no adjustments. To ensure the motor or pump/motor
assembly retains optimum performance maintain the fluid circuit to keep filters clean and
prevent abrasive solids from passing through the pump.
A program that includes periodic monitoring of your Micropump product is
recommended to provide timely detection and assessment of any problem.
NOTE
Magnet Decoupling
The I-Drive pump/motor combinations do not decouple. If pump load becomes excessive,
current limiting in the controller prevents motor overload. Additional protection is provided
by a thermal sensor which shuts down the drive if the housing temperature exceeds
80°C (176°F).
