in the nose up direction when actuated (Figure
15-13, page 15-13).
Pitch trim bias is actuated by the crew using
the PIT TRIM BIAS switch located at the front
of the throttle quadrant (Figure 15-4). It is a
three position switch, spring loaded to the
center position, and has to be lifted before it
can be moved forward or aft. When released
it returns to center. Whenever the switch is ac-
tuated toward the NUP position, a white "PIT
TRIM BIAS" message is posted on the CAS
until the bias is reduced to zero. If the thrust
levers are advanced to MCR or higher, the
“PIT TRIM BIAS” CAS message will change
from white to red and the takeoff “CONFIG-
URATION” voice message will sound. When
the switch is actuated in flight or the bias is
not zero, the “PIT TRIM BIAS” CAS mes-
sage will be illuminated in white (Table 15-
1, page 15-15).
Pitch trim bias is powered through the PIT
TRIM BIAS circuit breaker located in the
FLIGHT group of circuit breakers on the copi-
lot's circuit breaker panel.
Elevator Disconnect
In the event of a jam in either elevator me-
chanical control circuit, the two circuits can
be disconnected by pulling the ELEV dis-
connect T-handle located at the forward, left
edge of the center pedestal (Figure 15-5). The
airplane can then be controlled with the un-
jammed elevator. When the ELEV T-handle is
pulled, the forward and aft disconnects are re-
leased allowing the two control columns and
elevators to move independently of each other.
When the T-handle is pulled to full extension,
it should be rotated 90°, either clockwise or
counterclockwise, to lock it in the disconnect
position.
15-5
FOR TRAINING PURPOSES ONLY
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
FlightSafety
international
P
RES
S
TE
ST
I3 I . I 5
I I3.80
1
COM
NAV
SQ
NAV
AUDIO
CLR DLY
OFF
G
E
A
R
F
R
E
E
F
A
L
L
P
U
S
H
D
O
W
N
PIT TRIM
BIAS
RUD BOOST
G/S INHB
FLAP OVRD
GPWS
RADIO CTL
HOT BUS
E
L
E
V
P
U
L
L
&
D
I
S
C
SYS TEST/RESET
FLAP
RESET
ANTI
-ICE
SPLRN
RESET
STALL
GPWS
ADC
FLAPS
GEAR
LTS
FIRE
DET
OFF
NDN
MODES
NUP
Honeywell
ON
Figure 15-4. Pitch Trim Bias Switch
Figure 15-5. Elevator Disconnect T-Handle