Automatic Tank Selector
See
Automatic tank selection enables the engine to be fed from one tank or the other
in predetermined sequences without the pilot's intervention. These sequences
depend on the airplane’s configuration (on the ground, in-flight, and when CAS
messages of a fuel low situation are displayed).
The automatic tank selection system comprises an electronic sequencer, an
actuator attached on the fuel unit, the FUEL SEL pushbutton and the SHIFT
pushbutton located on the ENGINE/FUEL panel.
The automatic selector is operated by pressing the FUEL SEL pushbutton to the
AUTO position (status light in blue) and setting the manual selector to R or L.
The following table lists the status light’s colors corresponding to the system state:
System state
Status light
AUTO position
MAN position
Selector Operation
When the system is operated,
AUTO SEL
disappears; the sequencer chooses a
tank (R or L) and positions the FUEL TANK SELECTOR to the selected tank via
the actuator. The sequencer controls the time during which the selected tank will
operate. This time varies, depending on the folllowing conditions conditions:
-
When the airplane is on the ground: the tank is changed every 1 minute and
15 seconds.
-
When the airplane is in flight: the tank is changed every five minutes, as long
as
FUEL LOW L
or
FUEL LOW R
does not appear. When the first CAS
message of a fuel low situation is displayed, the sequencer immediately
selects the other tank. The selected tank will operate until the second CAS
message of a fuel low situation is displayed. When
FUEL LOW L-R
is
displayed, the sequencer changes tanks every 1 minute and 15 seconds.
Section 7
Description
Pilot's Information Manual
PIM TBM 960 - Edition 0
Rev. 00
Page 7.8.8
PIM - DO NOT USE FOR FLIGHT OPERATIONS
