Piper SENECA III - Cowl Flap Control

SECTION 7
PIPER
AlRCRAFT
CORPORATION
DESCRIPTION
& OPER
ATION
PA-34-220T,
SENECA 111
PULL-CLOSE
L
COWL
R
FLAP
PUSH-OPEN
COWL FLAP
CONTROL
Figure
7-I
The
mixture
comrol
levers
are
used
to
adjust
the
air
to
fuel
ratio.
An
engine
is
shut
down
by
the
placing
of
the
mixture lever
in
the
full lean
(idle
cut-off)
position.
The
friction
adjustmem
lever
on
the
right side
of
the control quadrant
may
be
adjusted
to
increase
or
decrease
the
friction holding
the
throttle.
propeller.
and
rnixture
controls
or
to
lock the
controls
ina
selected
position.
The
alternate
air
controls
are
located
on
the control quadrant
just
below
the
engine control
levers.
When
an
alternate
air
lever
is in
the
up,
or
off.
position the
engine
is
operating
on
filtered
air:
when
the lever
is
in the down.
or on,
position
the
engine
is
operating
on
unfiltered,
heated
air.
Should
the
primary
air
source
become
blocked
the
automatic
alternate
air
door
will
automatically select
unfiltered
heated
air.
The
cowl
flap
control
levers
(Figure
7-1), located
below
the
comrol
quadrant,
are
used
to
regulate
cooling air
for
the engines.
The
levers have
three
positions: full
open
full
closed,
and
intermediate.
A
lock
incorporated
REPORT:
VB-1110
ISSUED: JANUARY 8, 1981
7-4
REVISED: FEBRUARY 25, 1982