15
Installation, care and maintenance
Minette
Visible parts on pump
and installation
Pump casing and
impeller
Condition of the oil
Oil quantity
Liquid in the inspec-
tion chamber
Recommended inspections:
Inspection of
Action
WARNING!
If the seal leaks, the oil casing may be under pressure.
Hold a rag over the oil casing screw in order to prevent
splatter. See “Safety precautions” for additional informa-
tion.
WARNING!
If there has been leakage, the stator casing may be un-
der pressure. Hold a rag over the inspection screw to
prevent splatter. See “Safety precautions” for additional
information.
Lay the pump on its side.
Tilt the pump so that any liquid in the inspection chamber can run out
through the hole.
If there is water in the stator casing, the cause may be:
— that the inspection screw is not sufficiently tight.
— that the O-ring on the inspection screw or its sealing surface is damaged.
— that an O-ring is damaged.
— that the cable entry is leaking.
If there is oil in the inspections chamber, the cause may be:
— that the inner mechanical seal is damaged. Contact a Grindex service
shop.
Replace or fix worn and damaged parts.
Make sure that all screws, bolts and nuts are tight.
Replace worn parts if they impair function.
A check of the condition of the oil can show whether there has been an
increased leakage. Note! Air/oil mixture can be confused with water/oil
mixture.
Insert a tube (or hose) into the oil hole. Cover the top end of the tube and
take up a little oil from the bottom.
Change the oil if it contains too much water.
See “Changing the oil”. Check again one week after changing the oil.
If the oil contains too much water again, the fault may be:
— that an oil screw is not sufficiently tight.
— that the O-ring on an oil screw or its sealing surface is damaged.
— that the mechanical seal is damaged. Contact a Grindex service shop.
0.31 litres (0.08 US gallon)
