TOYO PUMPS EUROPE
Edition 03.11.2009
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h) The density of the pumped liquid can be verified by raising or descending the pump. A
to heavy density can provoke the blockage of the discharge hose and of the pump and
make pumping impossible. Heavy densities have to be avoided.
i) Use a sufficient resistant chain, which will be attached to the lifting eyes provided on
the pump for transporting or handling the pump. The angle between the two parts of
the chain may not overshoot 60 degrees.
j) Never suspend the pump by its alimentation cable.
k) Rinse the pump and the discharge hose with clean water before turning it off.
MAINTENANCE AND TROUBLESHOOTING
a) Measure periodically the voltage of the alimentation current to verify that the pump
works at the correct voltage.
b) The insulation resistance of the motor has to be verified at least once a month. If the
resistance of the motor is inferior to 100M Ohm, the winding of the electric motor has to
be dried and the tightness of the cables checked, etc.
c) The oil capacity in the under cover has to be verified every 500 hours. Therefore, place
the pump horizontally (vertical pumps). If needed, add oil as specified in the table of
technical characteristics of the pump (normal or biodegrading) through the opening
provided to this end.
d) If the presence of water in the oil is established (whitish emulsion), or if the oil contains
solid particles (mud, etc.), it means that the seals are defective. Their replacement is
then required.
e) The quantity of oil in the under cover of the pump is specified in the technical
specifications of the pump.
f) If the flow of the pump is diminishing, the space between the impeller disc and the
impeller has to be checked. The recommended space is indicated in the technical
specifications of the pump.
