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electronic control unit. Depending on the
control unit's model design, a signal line for
fault monitoring can be run outwards to
connect to the machine control unit via a
cable fitting (clamping range Ø 6 to 12 mm
or Ø 5 - 10 mm) mounted on the gear
pump unit.
Depending on the model design, the gear
pump unit can be equipped with an indicator
lamp (9) in the front panel. If the indicator
lamp is lit green, this indicates that the unit
is operating (pump motor running = lubri-
cating). If the indicator lamp is lit red, this
indicates a malfunction (only on design with
a control unit).
Depending on the model design, the gear
pump unit can be equipped with a pushbutton
(10) in the front panel. The pushbutton is
used for manually performing an interim
lubrication.
The electrical circuit diagram of the gear
pump unit is affixed inside the unit's cover
cap and can be accessed by removing the
cap. This diagram is affixed in such a way
that it cannot be removed.
The hydraulic pressure connection can be
established via
either of the two pressure ports on the
metal lid (letter P). A return line can be
connected on the return connection (letter
R). The pipe thread size for the pressure port
and return connection is G1/4. On delivery,
one of the two pressure ports and the re-
turn connection are closed leak-tight with
a screw plug. The second pressure port is
closed with a plastic plug.
Oils or fluid greases can be used as lubri-
cants, depending on the design of the gear
pump unit. For details on the lubricants that
are to be used, consult the documentation
or the Chapter "Technical Data."
Detailed information about the function and
the electrical connection of the gear pump
unit is included in Chapter 4 of the assembly
instructions.
The documentation can also be requested
directly from SKF Lubrication Systems
Germany GmbH.
EN
5. Functional description
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