NOTE
The manual selector’s positioning is driven by the fuel unit; it is positioned on
the R or L mark corresponding to the tank selected by the sequencer.
Therefore, the pilot is continuously aware of which tank is in operation.
Test for System Proper Operation
The SHIFT pushbutton enables the pilot
to test the system’s proper operation at
any time.
When the system is operating, the fuel tank is changed when the SHIFT
pushbutton is pressed once.
If the airplane is on ground or in flight, and CAS messages of a fuel low situation
are not displayed, the newly-selected tank remains operating and a new sequence
is initiated.
NOTE
This procedure enables the tank to be selected from which the pilot wants to
take fuel, even when the automatic tank selector is in operation.
In all cases, proper automatic tank selector operation is indicated by the rotation of
the manual selector each
time the automatic selector switches tank or when
pressing the SHIFT pushbutton.
Setting the FUEL SEL pushbutton to the MAN position (status light in green) or
setting the FUEL TANK SELECTOR to OFF position results in system deactivation
and the display of
AUTO SEL . AUTO SEL is also displayed when order given by
the sequencer has not been executed after 12 seconds.
Electric Boost Pump (AUX BP)
See Figure 7.8.2.
The electric boost pump
is an auxiliary pump located between the fuel unit and the
main mechanical boost pump. It is controlled through the AUX BP switch located
on the ENGINE/FUEL panel. This switch allows the two pump operating modes to
be stopped or selected:
- when set to ON, the electric boost pump operates permanently,
- when set to AUTO, the electric boost pump is automatically operated if there
is a fuel pressure drop at the mechanical boost pump outlet.
Section 7
Description
Pilot's Information Manual
PIM TBM 960 - Edition 0
Rev. 00
Page 7.8.9
PIM - DO NOT USE FOR FLIGHT OPERATIONS
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