Piper AZTEC D PA-23-250 Owner's Handbook Manual page 21

SECTION II
Control Pedesta I
THE PIPER AZTEC "D"
Parking brake valves,
operated by a control on the
left side of the instrument
panel, are installed ahead of
the forward cabin bulkhead
and are .also serviced through
the left nose access panel.
The nose whee 1 is steer-
able through a 30 degree arc,
through use of the rudder
pedals. As the nose gear re-
tracts, the steering linkage
becomes disconnected from
the gear so that the rudder
pedal actim with the gear retracted is not impeded by nose gear
operatim.
The position of the landing gear is indicated by four light
bulbs located on the pedestal. When the three green lights are
on, all three legs of the gear are down and locked; when the
amber light is on, the gear is entirely up and enclosed by the
gear doors. When no light is on, the gear is in an intermediate
positim. GEAR INDICATION LIGHTS ARE AUTOMATICALLY
DIMMED WHEN THE POST LIGHT CONTROL IS TURNED OH.
A red light in the landing gear control knob flashes when
the gear is up and either one of the throttles is pulled back.
When both throttles are closed beyond a given power setting,
approx:imately 12 inches
of
manifold pressure with wheels not
down, the landing gear warning horn sounds.
To guard against inadvertent retractim of the landing gear
on the ground, a mechanical latch, which must be operated
before the landing gear control can be moved upward, is posi-
tioned just above the control lever. The control knob is in the
shape of a wheel to differentiate from the flap control knob,
which has an air-foil shape. There is also an anti-retraction
valve located on the left main gear which prevents a build-up
of hydraulic ixessure in the retraction system while the weight
of the airplane is resting on its wheels.
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