Specifications

88
Flushing
Change of type of oil
Compatible oils
Incompatible oils
The draining operation can be followed by a flushing operation if the oil is
particularly dirty. This operation requires a volume of oil equal to the capacity of
the pump.
After draining the oil case (see page 87), replace the draining plug. Remove the
intake filter, clean it and replace it. Run the pump at atmospheric pressure, pour
the flushing oil very slowly through the inlet orifice. Take care with oil mist which
may develop at the exhaust. Stop the pump and drain the flushing oil via the
draining plug. Replace the plug and fill with fresh oil (see page 68).
ALCATEL 5 to 21 m
3
/h series pumps are tested in the factory with ALCATEL
120 oil or Alcatel 119 for USA (ALCATEL 113 for C2 series pumps) unless
specified otherwise in the order. When the pump is delivered, a certain
quantity of oil remains in the functional block
Thus, if you wish to use another type of oil, proceed as follows:
Mineral oil can be replaced by another type of mineral oil. Simply flush the
pump (see above) using the new oil and fill the pump (see page 68).
Mineral oils are also compatible with mineral-based synthetic oils
(see page 67).
This is the case when, for example, a mineral oil is replaced by a synthetic oil
(e.g. ALCATEL 120 by ALCATEL 113).
Synthetic oils are considered to be incompatible with each other for practical
reasons: they are expensive. A mixture may cause slight cloudiness of the
resulting mixture, which could be interpreted mistakenly as a sign of
contamination or deterioration.
For the same reasons, clear synthetic and mineral oils (ALCATEL 300), which
are also expensive, are treated as synthetic oils.
These remarks apply to ester or fluorocarbon type synthetic oils and the oils
Alcatel 111, 113 and 300 (see page 67).
Proceed as follows:
- Disassemble the pump completely and clean it (see page 91).
- Reassemble it.
- Connect an oil mist eliminator to the pump exhaust.
- Fill the pump with the new oil (see page 68).
NOTE: to replace a synthetic oil by a mineral oil, proceed as for compatible
oils.