Operating and maintenance instructions
EN
14
LI 3019.03
5.8 Water vapour intake
In order to pump down any water vapour, the following operations are recommended:
Let the pump run for thirty minutes at the maximum vacuum in order to bring the pump
temperature to its operating value.
At the end of the working cycle, in case of further presence of condensate in the oil, let
the pump run for at least thirty minutes at the maximum vacuum.
It is advisable to carry out this operation before stopping the pump for a long time. The
gas ballast valve will allow the elimination of water condensate from the lubricating oil.
6. Servicing
6.1 General information
In order to keep the pump operating at a high efficiency level, it is mandatory to follow
all periodical service points listed in the table below.However, more frequent service
operations may be necessary depending on what the pump is used for (suction of con-
densable vapours, suction of powders or polluting substances).
For such cases, only direct experience can indicate the correct service frequency needed.
The exhausted oil and the replaced spare parts must be considered as special waste
products and handled according to the local regulations in the Country of use.
WARNING:
Before every maintenance operation:
Always ensure that the pump is insulated from the electrical network so that it
can’t start automatically.
Wait until the pump gets cool and make sure it has reached a non-dangerous
temperature.
Introduce air in the inlet circuit.
WARNING:
in the case of maintenance operations involving the removal of the carter, restore
the electrical continuity of the pump by reconnecting the jumper between the
carter and the fan cover.