Mooney M20M - Bottom Cowling; Cowl Flap Rigging; Cowling Installation; Cowling Removal

SERVICE AND
MAINTENANCE
MANUAL M20M
MOONEY
AIRCRAFT
CORPORATION
2.
Reconnect
mixture
control.
71-12-00
ENGINE COWL
FLAPS
A.
Reverse
disconnect
procedure
to
reconnect
The
cowl
flaps
are
activated
OPEN
and
CLOSED
by
an
mixture
control.
idler
arm
which is
connected
by
a
push-pull
rod
to
the
3.
Adjustment
of
mixture
control
arm.
actuator
arm
on
the
geared
motor.A
cowl
flap
switch,
located
on
the
cockpit
console
directly
under
the
mixture
A. Loosen
locknut
on
control rod
end
and
adjust
control,
activates
the
geared
motor.
The switch
has
control
arm
rod
as
required.
three
positions:
a
center
(CLOSED)
and
aflaps
B.
Check
for
full
travel.
(OPEN)
position.
The
may
be
positioned
at
any
angle by
selecting
the
switch either
up
C.
Check
for
proper
thread
grip,
or
down until the
desired
position,
as
shown
on
the
D. Secure
locknut.
position
indicator,
has been reached.
Then
retum
the
switch
to
the center
(OFF)
position.
Limit
switches,
71-00-00 STARTER TROUBLE
SHOOTING
which
are
not
adjustable,
prevent
the
cowl
flap
from
See
SECTION 243404
for
procedure. TDC~RONLycormgS
exceeding
the
full
open
or
full
closed
position.
MAINTENANCE
AND OPERATORS
MANUAL
should
be
A
cowl
flap position
indicator
is
located
on
the lower
consul;ed.
console
adjacent
to
the
cowl
flap
switch. This indicator
is
operated
electrically
thru
a
potentiometer
which
is
71-10-00
COWLING
REMOVAL
connected
to
cowl
flap
actuator
shaft.
See
SECTION
71-~001
TOP COWLING
71-1 3-01 for Cowl
Flap
Indicator
rigging
procedures.
1. Remove
two
(2)
screws
from
top
cowling
on
each
´•11-13-00 -COWL FLAP
RIGGING
inboard
side
of
engine
cooling
air
intakes.
The cowl
flaps
are
rigged
for
a
flush
contour
between
2.
Remove
(1)
screw
from
each
side
of
top
cowling,
the cowl
flap’s
trailing
edges
and
lower cowl and
forward
and
outboard.
Then unlatch
seven cam
locks
fuselage
when in
the
closed
position
(See
Figure
along
each
side.
71-4).
3.
Unlatch
seven cam
locks
on
the aft
edge
of
the
top
cowling
just
ahead of windshield.
4.
Carefully
lift
top
cowling
off.
71-10-02
BOTTOM COWLING
A
Adjusting
Rod
i.
Unlatch
seven
cam
locks
located
on
B Cowl
flap
flush
with
engine cowling
bottom
of
cowling,
forward
and
between the
cowl
flaps.
2.
Unlatch
twelve
cam
locks around NACA
duct
on
lower,
right,
forward
end
of
lower
cowl.
3.
Unlatch
eight
cam
locks around induction
air
inlet duct
at forward
center
of
lower cowl.
4.
Unlatch
six
cam
locks
on
aft
sides
of
bottom
cowling
while
supporting
the cowl.
I
5.
Carefully
lower
cowling
clear
of
spinner
and
remove
from
aircraft.
71-11-00
-COWLING
INSTALLATION
NOTE
Check
condition
of
tape
on
firewall
flange
tape,
P~
5421(UHNIW)
(3M)1
in.
wide
is
where
cowling
will
rest.
A
polyethylene
recommended. This
will
decrease
streaking
during
wet
weather
operations.
71-11-01
BOTTOM
COWLING
1.
The bottom
cowling
is
installed
"firsP
in
reverse
sequence
of
removal.
71-11-02
TOP COWLING
1.
The
top
cowling
is
installed
in
reverse
sequence
COWL FLAP
RIGGING
FIGURE 71-4
of
removal.
71-00-90
4-99
10
OLDWILLWAYNE