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9.2 Contaminated mixer
If a mixer has been used for a liquid which
Caution
is injurious to health or toxic, it will be
classified as contaminated.
If you request Grundfos to service the mixer, contact
Grundfos with details about the liquid before
returning the mixer. Otherwise Grundfos can refuse
to accept the mixer for service.
Any application for service, no matter to whom you
send it, must include details about the liquid if the
mixer has been used for liquids which are injurious to
health or toxic.
Costs of returning the mixer must be paid by the
customer.
9.3 Service chart
Component
Service instructions
Keep the motor housing
clean; otherwise cooling is
Motor
affected. The motor housing
cannot be dismantled.
Power supply
cable
Shaft seal
housing
Propeller
Lifting and
Regular oiling or greasing
safety wire
increases the life of the wire.
Check the fixing screws
Screws
every time the pit or tank is
empty.
9.4 Oil in shaft seal housing
Oil quality
Ambient temperature
Type
Quantity
Lubrication
Change the oil after
5000 operating hours
or at least every
second year.
0-40 °C
SHELL Ondina X420
0.078 litre
Inspection
The motor is filled with dielectric
oil. Oil level check and oil change
are not required.
Check the power supply cable
twice a year for surface damage,
strain, kinks, etc.
If damaged, the cable must be
replaced by Grundfos.
Check the propeller blades
regularly for wear and tear.
Remove any material wound
around the blades, such as ropes,
threads, etc. which may cause
uneven running and oscillation of
the installation.
In case of strong turbulence,
cleaning is absolutely necessary.
If the propeller is damaged,
replace it.
Check the wire regularly and
always before using the winch.
Replace the wire, if required.
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