Mooney M20M - Engine Control Rigging

SERVICE
AND
MAINTENANCE
MANUAL
M20M
MOONEY
AIRCRAFT
CORPORATION
A.
CHECK
AND ADJUST
ENGINE CONTROL
assembly
cushion
as
specified
in
Step
71-00-52,
A,
(2)
RIGGING
above
and
SECTION
61-20-00.
(1)
Operate
each
engine
control
through
full
(3)
Run
engine
until
170
to
1800
oil
temperature
range
of
travel;
check that
it
operates
smoothly
and
is
obtained.
Slowly apply
full
throttle
(propeller
and
contacts
the
stops
at
each end
of
travel.
mixture
full
forward).
Observe
the
GSi~:0j0012-501*
readout indicator
and
allow
the
intercooler
out
(2)
Check
each control
at
the
instrument
panel
for
induction
air
temperature
to stabilize.
Lycoming
SI
i~tard:06
inch cushion
with the
control
pushed
full
1187(G)
Alternate
Method)
(4)
Note
the
stabilized intercoo\er
out
induction
CAUTION
air
temperature
on
GSE050012601 indicator
and the
Do
not
force
vernier
controls
by
turning
knobs.
stabilized manifold
pressure
on
a
calibrated
manifold
pressure
gauge
and
compare
with
chart
(Figure
71-3).
NOTE
If
manifold
pressure
at
the
observed
intercooler
out
Any
vernier control which
tends
to
creep
can
be
induction
air
temperature
falls
within
the limits
indicated
tightened
by
loosening
the
housing
nut
on
the
in
the
chart
no
adjustment
of
the
density
controller
is
back
of the
panel
and
tightening
the
face
nut
on
required.
However,
if
the
manifold
pressure
is
not
the
pilot
sideof
the
panel.
within
the limits shown
in
Figure
71-3,
the
density
controller
must
be
adjusted
as
described
in
Step (5)
(3) Adjust
controls
by
adjusting
rod
end
on
the
below
until it falls
within the
required
band.
forward end of the
control.
If additional
adjustment
is
required,
the control
arm
may
be
repositioned
to
adjust
(5)
The
dens~
controller
is
mounted
on
the
left
the throttle
or
mixture,
aft
side
of
the intercooler
(ref.
Figure
71-2).
Remove
lockwire
from
the
adjusting
fitting
and
by
means
of
a
(4)
Tighten
all
screws
and
resafety,
if
required.
small
wrench,
turnthe
square
head
of
the
fitting
clockwise
or
counterclockwise
to
accomplish
the
B.
FUEL
LINE
PURGE
adjustment. Turning
the
screw
inward,
or
clockwise will
increase manifold
pressure;
tuming
it
counterclockwise
Disconnect
fuel
line
at
firewall.
Pump
out
will
decrease manifold
pressure.
Be careful
when
approximately
one
quart
of
fuel
using
the
auxiliary
fuel
reinstalling safety
wire
to
avoid
turning
the
adjustment
boost
pump.
Select the
opposite
tank and
repeat.
fitting.
Reconnect
fuel
line.
CAUTION
C. FUEL
BOOST
PUMP THROTTLE SWITCH
Turning
the
adjusting
fitting
1/16
turn
will
RIGGING
change
the
manifold
pressure
approximately
2
(1)
Turn
ignition
switch
OFF,
manual
fuel
boost
inches;
therefore,
CARE MUST BE
U(ERCISED
pump
switch
OFF,
mixture at
idle
cutoff
and
aircraft
to
turn
the
screw
in
VERY SMALL
increments
electrical
power
ON.
Push
throttle full NVD
(FULL
until
correct
adjustment
is
obtained.
POWER
POSITION);
verify
that throttle activated fuel
(6)
If
discrepancies
in the
controller
settings
boost
pump
switch is
engaged
and
boost
pump
stays
between
ground
set
up
and actual
flight
become
ON while
the
throttle
is
pulled,
toward
idle,
until
0.38
to
evident,
then the
following
procedure
shall
be
0.5
inches from the
full MID
position.
accomplished.
Shut the
engine
down
after the
initial
(2)
Reposition
switch
and
actuator
arm
to
obtain
warm-up
for
4
to
5
minutes
to
allow
proper
heat
soak
of
the
above
criteria,
engine
components.
To
insure that
temperatures
have
stabilized,
readings
and
adjustments
MUST
BE made
(3) Verify
that
BOOST PUMP annunciator
(BLUE
with
the
aircraft
cowling
installed. Restart
engine
and
light)
is
illuminated.
run
(minimum
2
minutes)
until induction
air
(4)
Verify
that
fuel
pressure
on
aircraft
gauge
temperature
has
stabilized.
does
not
exceed
55 PSI
and
does
not
drop
below
45
(7)
Recheck
all
idle and full
power
adjustments
to
PSI.
Adjust
or
replace
fuel
pump
as
required.
insure
that
they
meet
this
specification
and
readjust
if
D.
IDLE
ADJUSTMENT
necessary.
Verify
that all
screws
are
tightened
and
resafety
if
required.
Refer
to
paragraph
71-00-51,
A. and
B.
above.
E. FULL
POWER ADJUSTMENTS
(1)
Engine
running,
temperatures
and
pressures
F. CLEAN
UP
in normal
range
(GREEN)
slowly
apply
full
throttle
After
any
flight
checks
and
adjustments
are
complete,
(propeller
and
mixture
controls
FULL
FORWARD).
conduct
a
leak check of
all
connections.
CAUTION
Do
not
exceed
38.0
In.
Hg.
and
2600
RPM under
any
circumstances
during
the full
power
adjustment
process.
(2)
Verify
that
propeller
governor
will allow
the
engine
to
operate
at
proper
static
RPM
to
obtain
2575
RPM
during
T/O
roll. Refer
to
SECTION
61-20-30
for
propeller
governor
adjustment.
Recheck
control
cable
71-00-52
4-99
OLDWILLWAYNE