Cessna 210B - Wing Flaps; Landing Gear System; Stall Warning Indicator; Gear Position Handle

Description
lamp for taxiing, push the right half
of the switch "ON." To turn on both
lamps for landing, push the left half
of the switch "ON. "
NAVIGATION LIGHTS.
The navigation light switch is the
split rocker type. For flashing navi-
gation lights, push the right half of
the switch "ON. " For steady navi-
gation lights, push the left half of
the switch "ON." To switch from
steady to flashing, push the left half
of the switch " OFF. "
STALL W ARN ING INDICATOR.
The stall warning indicator is an
electric horn controlled by a trans-
mitter unit in the leading edge of the
left wing . This system is in oper-
ation whenever the master switch is
turned on. The transmitter responds
to changes in the airflow over the
leading edge of the wing as a stall
is approached. In straight-ahead
and turning flight, the warning horn
will sound 5 to 10 MPH ahead of the
stall.
Under safe flight conditions, the
only time you may hear the warning
horn will be a short beep as yoo land.
WING FLAPS.
The wing flaps are operated hy-
draulically by the same system which
operates the landing gear. The flaps
are controlled by a lever on the con-
trol pedestal located below the center
of the instrument panel. Flap de-
flection is shown by an electric indi-
cator on the instrument panel. The
flaps may be stopped in any desi r ed
pOSition
by releasing the flap co ntr ol
handle which is sprin g -loaded to re -
turn to its center (off) pOSition.
NOTE
When
mooring the airplane , do
not use external locks be tw een
the flaps and ailerons , beca u se
aCCidental operation of the fl ap s
could
cause structural dama ge to
both
flaps and ailerons.
NOTE
Check
to see that the oo.gga ge door
is closed before operating the winf{
flaps. Also, retract the fl aps bl'
fore opening oo.ggage door.
LANDIN G GEAR SYSTEM ,
The retractable tricycle lan cllll
gear of your aircraft is ess enUa IIv
the familiar LAND-O- MA TIC spr lll
gear. It is extended and retracll I
by hydraulic actuators, po wered II~
an engine- dri ven hydrauli c pu "'II
The nose gear retracts f orw ard 111101
up and the main gear rotates aft lill d
up, into wells under the f u sf.'lll~~1
Both the main and nose g ear /1 ;lvl
positive mechanical up an d 1/1 I\\' II
locks , operated by separa te hyriJ ,llI
lic actuators. The nose gear ,11110
has a hydraulic safety lock wilhln Ii
gear actuator. Limit s wit ChCH Ilill
trol two position-indicat or 11 .:ill
which show that the gea r is I'dili'l
up or down and locked. Thl ' 1111\\
switches are connected in HI'l li
so that all three gears must b(' 11I1'] .l'tl
before either indicator li ght !'tuil
on. The indicator lights are the
press-to-test type. The gear down
indicator light (green) has two test
positions; with the light pushed in
approximately half-way (throttle
pulled out) the gear warning horn
should soond intermittently, and with
the light pushed full in, the light
should illuminate. TIle gear up in-
dicator li g ht (red) has only one test
position ; with the light pushed full
in, it should illuminate. These tests
assure proper operation of gear
pOSition indicator lights and warning
horn. The indicator lights also con-
tain dimming shutters for rtight oper-
ation. To dim the lights, turn the
lens holder on the lights clockwise.
For daytime operation, the lights
should be full bright.
As an additional reminder that the
landing gear is retracted, a warrting
horn sounds intermittently whenever
the throttle is retarded with the gear
up.
Both the main and nose landing
gear wheels are fully enclosed by
doors. Except for the nose gear
strut doors , which are linked me-
chanically to the strut, all the land-
ing gear doors are operated by hy-
draulic actuators which open the
doors to permit the gear to pass,
then close once more, on both the
extension and retraction cycles. The
gear operating sequence , including
opening and closing the doors, is
completely automatic.
GEAR POSJTlON HANDLE.
The gear pOSition handle has two
neutral positions, slightly above
(; enter for gear-up and slightly be-
Description
low center for gear-down, which
give a mechanical indication of the
gear pOSition. From either posi-
tion, the handle must be pulled out
to clear a detent before it can be
repOSitioned; operation of the gear
and doors will not begin until the
handle has been repositioned. To
repOSition the gear , the handle is
pulled out and moved to the desired
pOSition, then released. Pressure
is created in the system by the
engine- driven hydraulic pump and
the gear is actuated to the selected
position. A detent in the g ear handle
system holds the handle in the oper-
ating pOSition until the cycle is com-
pleted , then the handle automatically
returns to neutral and pressure in
the system is relieved by a pump un-
loading valve. The valve continually
recycles the fluid output of the pump,
allowing no pressure build-up in the
system, until the wing flap or landing
gear handles are used to select a new
flap
or gear pOSition.
IMPORTANT
The landing gear position handle
shoold be returned to neutral man-
ually if a malfunction occurs in
the hydraulic system which pre-
vents the gear position handle from
returning to neutral after an ex-
tension or retraction cycle has
been completed. Continuous op-
eration with the handle out of
neutral keeps the system pres-
surized and will eventually result
in overheating and damage.
A safety switch, actuated by t he
nose gear strut, restricts the gear
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