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CESSNA
MODELT210M
SECTION7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
warn against any maintenance in the wheel well areas
with the circuit breaker switch pushed in.
NOTE
The position of the master switch for gear door operation is
easily remembered by the following rule:
OPEN circuit
=
OPEN doors
CLOSED circuit
=
CLOSED doors
CAUTION
Do not operate the hand pump with the GEAR UP position
selected by the landing gear lever while the airplane is on
the ground, since the squat switch will not prevent gear
retraction.
EMERGENCY HAND PUMP
A
hand-operated hydraulic pump, located between the two front seats,
is
provided for extension of the landing
gear
in the
event
of
a
hydraulic or
electrical system
failure.
To
utilize the pump,
extend
the handle forward
a
nd pump vertically. For complete emergency procedures, refer to Section
3.
For practice manual gear extensions, pull out the GEAR PUMP circuit
breaker before placing the landing gear lever in the GEAR DOWN
position. After practice manual extension is completed, push the circuit
breaker in to restore normal gear operation.
LANDING GEAR WARNING SYSTEM
The airplane is equipped with a landing gear warning system designed
to help prevent the pilot from inadvertently making
a
wheels-up landing.
The system consists of a throttle-actuated switch
which
is electrically
connected to a dual warning unit. The warning unit is connected to the
airplane
speaker.
·
When the throttle is retarded below approximately 15 inches of
manifold pressure (master switch on), the throttle linkage will actuate a
switch which is electrically connected to the gear warning portion of a dual
warning unit.
If
the landing gear is retracted (or not down
and
locked), an
intermittent tone will be heard on the airplane speaker. The system may be
checked
for correct operation before flight by retarding the throttle to idle
and
depressing the green gear-down position indicator light half way in.
With the indicator light depressed as described,
an
intermittent tone
7-13
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