Cessna 1971 Super Skymaster Owner's Manual page 17

control lho c"bln heating, ventilation
and
windshield defrosting system.
MovlnlC lho lever labeled "Am" from the "OFF" (top) position to the
".MAX" pOlition increases the volume of fresh (unheated) air to the cabin.
Moving the lever labeled "HEAT, " from the top to the "MAX" position
lncrcll8es the volume of heated air to maximum. For maximum heating,
lho "AIR" lever should be in the full up "OFF" position. For maximum
cooling the "HEAT" lever should be in the full up "OFF" position. For
desired temperature, adjust both levers to provide the proper mixture of
heated and unheated air. The defroster lever is labeled "DFR" and "OFF"
at the top and "MAX" at the bottom. To operate the defrosting system,
move the "DFR" lever down to the
"MAX"
position and position the "AIR"
and "HEAT" levers to provide the desired temperature and volume of
defrost air to the windshield.
Front cabin heat and ventilating air is supplied by a flat duct extend­
ing from cabin manifolds in front of the pilot's and copilot's feet. Rear
cabin heat and air is supplied by two ducts, one extending from each cabin
manifold along each side of the cabin to an outlet at the front doorpost at
floor level. Windshield defrosting air is also supplied by ducts leading
from the cabin manifolds.
Separate adjustable ventilators supply additional air; two in the center
of the cabin ceiling just aft of the windshield supply air for the pilot and co­
pilot, and four in the rear cabin ceiling above the side windows supply air
to the rear seat passengers.
An air exhaust vent at the rear of the cabin removes stale air and
increases the flow of fresh air through the cabin.
SHOULDER HARNESSES.
Shoulder harnesses are provided as standard equipment for the pilot
and front seat passenger; harness installations for all other seats are op­
tional.
Each front seat harness is attached above the window line between the
front and center side windows. When stowed, the harness is held in place
by
two retaining clips, one above the front side window, and one on the
tront side of the windshield post. Stow the harness
by
placing it behind
buth retaining clips.
With four place seating, each rear seat shoulder harness is attached
I-1ft
above the aft side window and is stowed behind retaining clips above the
cabin side windows. In the five or six-place arrangement, the aft seat
or seats utilize harnesses attached to the aft cabin wall. Each harness
is stowed behind a retaining clip above the aft side window.
To use the front and rear seat shoulder harnesses, fasten and adjust
the seat belt first. Remove the harness from the stowed pOSition, and
lengthen as required by pulling on the end of the harness and the narrow
release strap. Snap the harness metal stud firmly into the retaining slot
adjacent to the seat belt buckle. Then adjust to length by pulling down on
the free end of the harness. A properly adjusted harness will permit the
occupant to lean forward enough to sit completely erect but is tight enough
to prevent excessive forward movement and contact with objects during
sudden deceleration. Also, the pilot will want the freedom to reach all
controls easily.
Releasing and removing the shoulder harness is accomplished by
pulling upward on the narrow release strap, then removing the harness
stud from the slot in the seat belt buckle. In an emergency, the shoulder
harness may be removed
by
releasing the seat belt first, then pulling
the harness over the head by pulling up on the release strap.
CABIN DOOR OPERATION.
Cabin door operation is conventional except for a special locking fea­
ture.
To enter the aircraft, depress the thumb button located at the front
end of the cabin door handle and pull out on the handle to unlatch the door.
To open the door from the inside, rotate the door handle clockwise.
To close the cabin door from the inSide, pull the door shut and rotate
the door handle counterclockwtse to the "lOCKED" position. As the han­
dle is turned to the locked pOSition, the door will be drawn in tight against
the seal. The outside door handle incorporates the same locking action
Ind should be used anytime the aircraft is parked outside. When leaving
the aircraft, close the cabin door, pull the door handle out until
it
meets
resistance, then depress the thumb button and return the door handle to
it. recess. As the handle is pushed back in, the cabin door will
be
drawn
tilht.
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