Mooney M20L Installation and user guide

O
O
SERVICE
AND
MAINTENANCE
MANUAL
MOONEY
AIRCRAFT
CORPORATION
P.O.
BOX
72,
KERRVILTIE,
TEXAS.
78029-0072
MARCH,
1988
MANUAL
NUMBER
140

MOONEY
AIRCRAFT CORPORATION
M()DEL M20L
SERVICE
AND
MAINTENANCE
INTRODUCTION
SYSTEM/CHAPTER
This manual
provides
servicing
and main-
The various
groups
contain
major
systems
infor-
tenance
information
for the
Mooncy_Modcl
mation
such
as
night
controls,
landing
gear,
etc.
M20L,
Serial
Numbers
26-0001
and
ON,
Main-
The
systemsare
arranged
numerically
per
tenance
actions
that
refer
to
a
limited number
GAMA
recommended
number
assignment,
It
of
aircraft
will be
designated
by
serial number
is
suggested,
for
e?rample,that
"Fuel" be
iden-
of
applicable
airplanes.
tified
with the
System/Chapter
number
"28".
The
format
and
contents
of
this
manual
are
The
sequence
of
numbers,
28-00-00,
refers
to
prepared
in
accordance
with
GENERAL
the General
information
of the Fuel
Systems.
AVIATION
MANUFACTURER’S
ASSOCIA-
SUB-SYSTEM/SECTION
TION
(GAMA)
Specification
No. 2.
The
manual
is
supplemented
with
wiring
schematics
The
major
systems
of
an
aircraft
are
broken
for
the
various
model
year
airplanes,as
neces-
down
into
sub-systems.
These
sub-systems
are
sary.
These
are
located
in
envelopes
at
the
identined
by
the
second
element
of
the
se-
back
of the manual
texts
pages.
quence
of
numbers,
ie.,
28-20-00.
The
element
-20-
indicates
the
distribution
portion
of
the
fuel
NOTE
system.
Revisions
or
reissues
of this
manual
are
not
automatically
provided
to
manual
holders.
UNIT/SUBJECT
Halders of these
and
other
Mooney
Technicnl
Th,
individual units
within
a
sub-system
may
be
Publications
should
complete
the
information
identif~ed
by
a
third
element
of the
sequence
of
on
the
YELLOW CARDS
located at
the
front
of
the
Title
Page
and
send
to
Mooney
AircraCt
numbers,
ie.,28-20-01.
This
number
is
assigned
CorpoMtion,
P.O.
Box
72,
Kerrville,
TX.,
by
the
manufacturer
and
may
or
may
not
be
780tY-007t,
Attn:
Service
Parts
Department.
used
depending
upon
the
complexity
of
the
maintenance
action
recommended.
Notification is
sent
to
known
manual holders
when another
manual is
prepared
to
replace
the
APPLICATION
OF
NUMBERING
SYSTEM
subscription
and
advises that
no
more
revisions
Mooney
Aircraft
Corporation
is
in
the
process
will
be
sent
out.
The
new
manual
will
require
a
of
revising
all
applicable
technical
publications
new
subscription
service.
If
additional
Techni-
to
the
GAMA
format.
When
this effort is
com-
cal
Puhlications
are
desired,
contact
the above
pleted
any
publication
concerning
maintenance
department
at
Mooney
Aircraft
Corporation
at
of
aircraft
will
conform
to
this
basic
numbering
(512)
896-6000.
system.
Any
person
wishing
information
con-
Correspondence
concerning
maintenance
or
cerning
the
Fuel
Distribution
System
would
part
numbers
on an
airplane
should
contain the
refer
to
the
pages
identined
as
,28-20-00,
in
any
aircraft
model
number
and
serial number.
The
maintenance
oriented
puhlication.
These
pages
serial
number
appears
on
the
identification
will
be
numbered
sequentially
within
each
sys-
placard
located
on
the aft
end,
left
hand side
of
tem
breakdown
in the
current
Mooney
series of
the
tailcone
below
the
horizontal
stabilizer.
aircraft.
As
Mooney
aircraft
models become
more
complex
the
page
numbers
may
be
se-
ASSIGNMENT
OF
SUBJECT
MATERIAL
quentially
numbered
within
sub-systems.
The
content
of
this
publication
is
organized
at
Th,
table of
contents
in the
front
of each
Sys-
four
levels:
tem/Chapter
will
provide
a
list
of
sub-systems
Group
covered
in the
Chapter.
For
example:
System/Chapter
28-01)
General
Subsystem/Section
UniVSubject
25-10
Storage
GROUP
(Tanks,
vents,
repair,
etc.)
These
are
primary
divisions of the
manual that
enable
broad
separation
of
content,
ie.,
28-20
Distribution
Airframe
systems
VS
Powerplant
systems.
(Boost
pumps,
fuel
lines,
These
groups
are
identified
by
tabs.
etc.)
Page
1

MOONEY
AIRCRAFT CORPORATION
MODEL
M20t
SERVICE
AND MAINTENANCE
28-40__
Indicating
If
there
is
a reason
to
distinguish
between
(Sender
Units,
quantity LEFT
HAND
or
RICrHT
HAND
fuel
quantity
gauges,
etc.)
sending
units then
the
number would be
ex-
-panded
to
28-40-01
(Left-Hand)
and
2&40-02
(Right
Hand).
This
concept
will
apply
to
any
expanded
information
throughout
the
publica-
tions.
SUPPLEMENTARY
PUBLICATIONS
The
following
list of
Manufacturers
and/or
publications
can
provide
servicing
and
main-
tenance
information
on
Components
of the
Mooney-PFM,
Model
MU0L.
No
avionics
equipment
Manufacturers
or
publications
are
listed
due
to
the
many
configurations
that
can
be
installed in the
aircraft.
These
can
be
obtained
from
the
repair
stations
for
a
particular
avionics manufacturer.
Puhlications
available
from
Mooney
Aircraft
Corporation
are
listed
in the
Parts
Price
List
and
are
available
through
any
Mooney
MarketinglService
Center.
As
publications
on
various
components
become
available,
they
will
be
added
to
the list below.
VENDOR
ADDRESSES
or
PUBLICATIONS
ENGINE
Maintenance
publications
can
be
obtained
through
Porsche
Aviation
Products
Inc.,
Municipal
Airport,
R.R.
5
Box
118A, Cialesburg,
11.,61401.
PROPELLER
McCauley Propellers
Obtain
publications
from
McCauley
Accessories
Division,
Cessna
Aircraft
Company,
3535
McCauley
Drive,
Vandalia,
OH.,45377.
Page
2

MOONEY
AIRCRAFT
CORPORATION
MODEL
M20L
SERVICE
AND
MAINTENANCE
SYSTEM/CHAPTER,
SUB-SYSTEM/SECTION
INDEX
GUIDE
SYSTEM/
SUB-SYSTEM!
T~TLE
CHAPTER
SECTION
1-4
RESERVED
BY
GAMA
MAY
BE
USED
AT
LATER
DATE
5
TIME
LIMITS/MAINTENANCE
CHECKS
00
GENERAL
10
TIME
LIMITS
20
SCHEDULED
MAINTENANCE
CHECKS
G
DIMENSIONS
AND
AREAS
00
GENERAL
7
LIFTING
10
JACKING
8
LEVELING
AND
WEIGHING
00
LEVELING
9
TOWING
AND
TAXIING
00
GROUND
HANDLING
10
TOWING
20
TAXIING
10
PARKING
AND
MOORING
00
GENERAL
10
PARKING
20
MOORING
11
PLACARDS
AND
MARKINGS
00
GENERAL
10
MARKINGS
20
PLACARDS-
EXTERIOR/INTERIOR
12
SERVICING
00
SERVICING
10
REPLENISHING
20
SCHEDULED
SERVICING
20
STANDARD
PRACTICES
AIR~RAME
00
GENERAL
21
ENVIRONMENTAL
SYSTEMS
00
CABIN
VENTILATION
SYSTEM
40
HEATING;
Page
3

MOONEY
AIRCRAFT
CORPORATION
MODEL M20L
SERVICE
AND
MAINTENANCE
24
ELECTRICAL
POWER
00 GENERAL
30 DC
<;ENERATION
50
ELECTRLt’AL LOAD DISTRIBUTION
27
FLI(;HT
CONTROLS
00 GENERAL
10
AILERON SYSTEM
20
RUDDER SYSTEM
30
ELEVATOR
SYSTEM
40
STABILIZER
TRIM
SYSTEM
50
WING
FLAP
SYSTEM
90 MISCELLANEOUS
28
FUEL
00
GENERAL
20 DISTRIBUTION
30
DUMP
40
INDICATING
90 MISCELLANEOUS
30
ICE
AND RAIN
PROTECTION
00 GENERAL
30 PITOT
AND
STATIC
60 PROPELLERS
32
LANDING
GEAR
00 GENERAL
10
MAIN
LANDING
GEAR
AND
DOORS
20
N()SE LANDING
(iEAR
AND
DG)ORS
30
EXTENSION
AND
RETRACTION
40
WHEELS AND
BRAKES
50 STEERING;
60 POSITION
AND
WARNING
80
MISCELLANEOUS
33
LIGHTS
00 GENERAL
20 INTERIOR LIGHTS
MAINTENANCE
PRACTICES
40
EXTERIOR
LIGHTS
MAINTENANCE
PRACTICES
34
NAVIGATI~)N
00
GENERAL
10
PITOT
Sr STATIC
AIR
PRESSURE SYSTEM
20
DIRECTIONAL GYRO
COMPASS
35
OXYGEN
00
GENERAL
37
VACUUM
(NOT
USED
ON
MZOL
AIRCRAFT)
Pa&e
4

MOONEY
AIRCRAFT
CORPORATION
MODEL
M20L
SERVICE
AND MAINTENANCE
39
ELECTRICAL
PANELS
AND
COMPONENTS
00
GENERAL
10
INSTRUMENT
AND
CONTROL
PANELS
20
ELECTRICAL
AND
ELECTRONICS
EQUIPMENT
RACKS
51
STRUCTURES
00
<;ENERAL
10
STRUCTURAL
REPAIR
GENERAL
52
DOORS
00
GENERAL
10
CABIN
DOOR
MAINTENANCE
PRACTICE
30
BAGGAGE
COMPARTMENT
DOOR
MAINTENANCE
PRACTICE
53
FUSELAGE
00
GENERAL
10
MAIN
FRAME
20
AUXILIARY
STRUCTURE
30
PLATES/SKIN
40
ATTACH
FITTINGS
50
FILLETSIFAIRINC;S
55
STABILIZERS
00
GENERAL
10
HORIZONTAL
STABILIZER
20
ELEVATOR
30
VERTICAL
STABILIZER
40
RUDDER
56
WINDOWS
00
GENERAL
20
WINDSHIELD
gr
CABIN
WINDOWS
50
PLEXIGLASS
DRILLING
57
WINGS
00
GENERAL
30
PLATES/SKINS
40
ATTACH
FITTINGS
50
FLIGHT
SURFACES
60
STANDARD
PRA(3TICES
PROPELLERS
61
PROPELLERS
00
GENERAL
10
PROPELLER
ASSEMBLY
20
CONTROLLING
Page
5

MOONEY
AIRCRAFT
CORPORATION
M()DEL
M20L
SERVICE
AND
MAINTENANCE
71,_
POWERPLANT
Qn
dENERAL
10
COWLING
72
ENGINE-
RECIPROCATING
00
GENERAL
73
ENGINE
FUEL
SYSTEM
00
GENERAL
10
DISTRIBUTION
20
C’ONTR()LLING
30
INDICATING;
74
IGNITION
00
<iENERAL
10
POWER
CONTROL
20
EMERGENCYSHUTDOWN
77
EN<;INE
INDICATING
on
GENERAL
10
POWER
20
TEMPERATURE
7’)
OIL
00
GENERAL
10
STORAGiE
20
DISTRIBUTION
30
INDICATING;
80
STARTING
00
GENERAL
10
CRANKING
81
TURBINES
on
<;ENERAL
10
P()WER
RECOVERY
20
91
SCHEMATICS
00
GENERAL
20
ELECTRICAL
SYSTEM
HARDWARE
CHARTS
3()
SCHEMATICS
’)5
SPECIAL EQUIPhlE~IT
Page
G

_
CHAPTER
TINIE
LINIITS/
MAINTENANCE
CH EC KS

MOONEY
AIRCRAF~
CORPORATION
MODEL
M20L
SERVICE
AND
MAINTENANCE
MANUAL
CHAPTERS
TIME
LIMITS/MAINTENANCE
CHECKS
TABLE
OF CONTENTS
CHAPTER
SECY~ION
SUBJECT........,
SUBJECT...........,
,PAGE
5-(H)-00
General
.,,,,,,.,,,,,5
5-(H)-01
Landing
Gear
System
,5
5-00-02
Flight
Control
Systems
.5
5-(X)-03
WingFiapSystcms
,,,,,,,,,,5
5-00-04
Electric
Power
System
.5
5-0()-05
Instruments
,,,.,,,,,,,,,,s
5-00-06
Cabin
Heating
Ventilating
Systems
.5
5-(H)-07
FuclSystem
,,,,,,,,,,,,,6
5-10-(H)
Time Limit
Components
.6
5-10-01
Overhaul and
Replacement
Schedule
.6
5-20-00
Schedule
Maintenance
Checks
.7
5-20-01
Check
Points,
(Torque
Values)
.7
5-20-02
Aircraft
File
Inspection
12
5-20-03
Engine
Functional
Check,,,,,,,l2
5-20-04
First
25
Hour
Inspection
12
5-20-05
50 Hour
Inspection
13
5-2()-06
100
Hour
Inspection
13
5-20-07
Access
Cover
Identification,
Lubrication
and
Service Guide
19
5-CONTENTS
Page
3/4BLANK

MOONEY
AIRCRAFT
CORPORATION
M<)DEL
M20L
SERVICE
AND
MAINTENANCE
MANUAL
CHAPTERS
TIME
LaMTTS/MAINTENANCE
CHECKS
LIST <)F
EFFECTIVE
PAGES
CHAPTER
SECTION
SUBJECYT
PAGE
DATE
5-ETfectivi~y
1/2BLANK
.3-88
IConlents........´•
3/4BLANK
.3-88
5-00-(K)
5
.3-88
5-00-07
6
.3-88
5-10-01
7
.3-88
5-20-01
8
.3-88
5-20-0
L
9
.3-88
5-20-01
10
.3-88
5-20-01
.3-88
5-20-02
12
.3-88
5-20-05
.13
.3-88
5-20-06
.14
.3-88
5-20-06
15
.3-88
5-20-(Ki
16
.3-88
5-20-06
.17
.3-88
5-20-06
18
.3-88
5-20-07
19
.3-88
5-20-07
20
.3-88
5-20-07
21
.3-88
5-20-07
22
.3-88
5-EFFECTIVITY
Page
U2BLANK

MOONEY AIRCRAFT CORPORATION
MODEL M20L
SERVICE
AND
MAINTENANCE MANUAL
5-00-00
-GENERAL
co-pilot’s
rudder
pedals
are
removable. The
AIReRAF~ DESCRIPTION.
The-M2OL
series
t’i-m system
sets
the
stabilizer
angle
of
attack.
ol’
aircraft
are
f(,ur
place hiph-pcrk,rmance
5-00-03
WING
FLAP
SYSTEM
single-engine low-wing
monoplanes.
Theall-
metal
airframe has
a
tubular-steel cabin
frame
Wing flaps
are
electrically
actuated and
are
covered
with nonstructural
aluminum
skins,
a
controlled
by
a
spring
loaded
"up-off-down"
switch
on
the
center
console.
semi-monocoque
tailcone,
and
a
full-cantilever
Inminar-now
wing.
Control surfaces
have
slruc-
5-00-04
ELECTRIC
POWER
SYSTEM
tural
spar
construction with stressed
skins
riveted
to
the
spars
and ribs.
Dual controi
1.
The
master
switch
and
power
relay
con-
wheels
accompany
the conventional
night
con-
trol the
electrical
power
system,
comprised
of
two
70
amp,
28
volt alternators
w/
integrated
trols.
The
pilot’s
rudder
pedals
have
toe
brakes
voltage regulators,
and
two
24
volt
22 AMP HR
linked
to
individual
hydraulic cylinders
that
batteries. The alternator
system
has
an
overvol-
supply
pressure
to
the
hydraulic
dise brakes
on
rage
protective
relay
and
an
overvoltage
annun-
each
main
gear
wheel. Removable
co-pilot
rud-
der
pedals
are
standard
equipment.
The
ciator
light.
Circuit breakers
or
circuit
breaker/switches
protect
the
electrical
wiring
tricycle
landing
gear,
having
a
steerable
nose
wheel controlled
by
rudder
pedal
action,
is
Fully
and
equipment
from overloads.
Standard
retractable.
The
wide-sgan trailing-edge
wing
electrical
equipment
includes:
two
100
watt
flaps
are
electrically
operated.
For
stabilizer
landing lights,
two
100
watt
taxi
lights, naviga-
lion
lights,
interior
lights,
gear
and
stall
warning
trim,
the
entire
empennage
pivots
vertically
system,
three
electric fuel
Dumps,
an
electric
about
its
attaching points.
starter,
an
electric
gear
retraction
system
with
5-00-01
LANDING GEAR SYSTEM
manual
extension
override and
an
electric
flap
The
electric
landing
gear
system
has
a
steerable
System.
nose
wheel.
Single
dise
self-adjusting
hydraulic
5-00-05
INSTRUMENTS
brakes
are
featured
on
the
main
gear.
Gear
All
night
instruments
are
in the
shock-mounted
position
lights,
a
warning
horn
and
a
gear
Dosi-
lion
indicator
on
the noorboard
are
standard
night
panel. Engine
instruments
are
in
the
pilot’s
panel.
The
pitot system
provides
air
equipment.
Bungee
springs
assist
in
prcloading
the
retraction
mechanism
in
an
over-center
pressure
to
operate
the
airspeed
indicator. The
instrument
static
pressure
system
has
two
static
position
to
lock the
gear
down.
A
properly
air
pickup
ports
tone
on
each side of
the
~ail-
rigged
air
pressure
actuated
safety
s\vitch
in
the
cone)
that
open
to
the
atmosphere.
An
altcr-
electrical
system
prevents
electric
gear
rctrac-
nale
static
source
control is
provided
on
the
Lion
on
tak’eoll
until
a
safe
flying speed
is
at-
center
console.
The
instrument
panel
lights
rained. A
gear
warning
horn
sounds
when the
come on
when the
Navigation lights
are
turned
power
lever
is
approximately
3/8
to
114
inch
out
on.
Dimming
is
controled
by
switches
located
from
panel
while Lhe
landing
gear
is
up.
The,
on
the
center
console.
They
are
momentary
electric,
gear
retraction
system
has
a
manual
ex-
tensicln
system
connected
to
the
gear
actuatar
type
switches;
push
top
of
switch and
hold
until
the
desired
illumination is
obtained,
then
which
permits
manual
lowering
of the
gear
in
the
event
of
an
electrical
malfunction.
release.
Push bottom
of
switch and the
lights
will
dim.
5-00-02
FLIGHT
CONTROL
SYSTEMS
5-00-06
CABIN
HEATING
Dual
Ilight
control
systems
can
he
operated VENTILATING SYSTEMS
from
either the
pilot
or
co-pilolseat.
All
night
Th, heater
muff
encasing
the
exhaust
system
is
controls
are
conventional
in
operation,
using
the
cabin
heal
source.
Hot
air
from
the
heater
pushpull
tubes
to
link the
control surfaces
to
,,rr,i~,d
with
ambient air controls
cabin
the control
wheels and
rudder
pedals.
Formica
temperature.
Air
routed from
the
main
healer
guide
blocks
maintain
control
tube
alignment
duct
system
to
nozzles
at
the
windshield base
and
dampen
vibration.
An
interconnect
spring
defros;s
the
windshield.
mechanism
links the
aileron
and
rudder
systems
to
assist
in
control
coordination.
The
standard
5-(K)-(H)

MOONEY
AIRCRAFZT
CORPORATION
MODEL M20L
SERVICE
AND
MAINTENANCE
MANUAL
0-00-07
FUEL
SYSTEM
A
low
fuel
warning
annunciator
light
for
each
The
Fuel
svstcm
has
scaled,
integral
wing
tanks
tank
is
activated
when usable Fuel
quantity
goes
in
the
for;vard,
inboard
section
of
each
wing.
below
2
U2
gallons.
Vents
at
the
aft,
outboard
top
corner
of
each
TIME
UMIFCObAPONEN~s
tank
vent
through
the lower
wing
surface.
Fuel
sump
drains
are
at
the lowest
point
in
each
It
is recommended
that
overhaul
or
replace-
tank.
The
three electric
fuel
pumps
are
located
ment
of
components
shoufd be
a
accomplished
in
the
belly
below
the
cabin.
Access
is
gained
not
later
than
the
specified period
of
operation
by
removing
the
fiberglass
belly
fairing.
Two
for
that
component
or
in
accordance
with
manufactures
service
data
or
airworthiness
fuel
quantity
transmitters
in
each
tank
are
wired
directives.
in
series
to
fuel
quantity
gauges
(L R)
in the
engine
gauges.
The
specified
overhaul
time
limits,
if
applicable
to
a
component,
do
not
constitute
a
guarantee
that
the
component
will
reach that time
limit
The
Battery
switches
(L
R),
left
side
of
without
requiring
maintenance.
pilot’s
panel,
activate all
circuity
to start
the
aircraft
engine;
however
no
instrumentation
in-
NOTE
dication will
be
activated
except
tachometer,
"ON CONDITION"
Items
are
to be
repaired,
fuel now and
power
meters.
replaced
or
overhauled
when
inspection
or
performance
reveals
an
unserviceable
The
Master
Switch,
left
side
of
the
pilot’s
panel
condition.
between the
two
Battery
Switches,
turns
on
the
fuel
quantity
indicating
systems.
Optional
visual
sight
gauges
are
available
for
partial
fueling
of
wing
tanks
on
aircraft.
5-00-07

MOONEY AIRCRAFT
CORPORATION
MODEL
M20L
SERVICE
AND
MAINTENANCE MANUAL
b10-01
OVERHAUL
AN9
REPLACEMENT SCHEDULE
ITEM
RECOMMENDED
OVERHAUL OR
REPLACE
TIME
LIMITS
Landing
Gear
Actuator
No-Back
Spring
1000
Hours
(Avionics
Products)
All
other
Components
On
Condition
Powerplant
Engine
2000
Hours
Torsional
coupling
1000
Hrs
Cylinder
Heads
1000
Hrs
V-Belts
3
Yrs.
or
2000 Hrs
Propeller
1500
Flight
Hrs.
Retire Blades
Induction
Air
Filter
500
Hours
or
5
Years
All other
Components
On
Condition
Fuel
Oil
System
Fuel
Pumps
2000
Hrs
Fuel
Filter
100
Hrs
Oil
Filer
100
Hrs
Engine
Oil
100
Hrs
(API
SF/CC or
SF/CD)
All other
Components
On
Condition
Instruments
All
Components
On
condition
Electrical
System
Voltage
Regulators
1000
Hrs
All
other
Components
On
Condition
Flight
Controls
All
Components
On
Condition
Miscellaneous
Systems
E.L.T.
Battery
2
Years
or
1
Hour
Total
Use
Oxygen
Cylinder
15 Yrs
or
10,000
recharge.cycles
All Other
Components
(Exclud-
On
Condition
ing
Avionics)
Avionics
Refer
to
Manufacturers
Publications
NOTE
Components
should
be
Inspected
and
serviced at
regular
intervals
per
the
servicing,
lubrication
and
inspection
chart
of this
manual.
&2M)~
-SCHEDULED
MAINTENANCE
1.
Moving
Parts
shall
be
inspected
and
CHECKS
checked
as
applicable
for:
proper
operation,
Inspection
Intervals.
Perform
25,50,
or
100-
security
of
attachment,
sealing,
cleanliness,
hour
inspections
of
the
aircraft
and
engine
at
lubrication,
servicing,
safetying,
adjustment,
ten-
recommended
intervals
as
outlined
in
the
fol-
sion,
travel,
condition
of
hinges,
binding,
exces-
lowing
paragraphs.
sive
wear,
cracking,
corrosion,
deformation,
and
any
other
apparent
damage.
b20-dl
-INSPECTION
CHECK
POINTS
2.
Metal
Parts
shall
be
inspected
and check-
The
general
points
to
be
covered
during
inspec-
ed
as
applicable
for:
security
of
attachment,
tion
are
grouped
in
accordance
with the
nature
condition
of
f~ish
and
seLant,
aistortion,
and function
ofthe
items
discussed.
fatigue
cracks,
welding
cracks,
corrosion,
and
any
other
apparent
damage.
5-10-01

MOONEY
AIRCRAFT CORPORATION
MODEL M20L
SERVICE
AND
MAINTENANCE MANUAL
3.
Fuel,
air,
oil and
hydraulic
oil
lines
and
No
compound
is
to
be used
on
the
coupling
hoses
-shall-be
inspected
as
applicable
for:
sleeves
or~on
the
outside
of the tube dares.
Ex-
cracks,
dents,
kinks,
deterioration,
obstruction,
trcme
care
should be exercised
to
prevent
the
chaffing,
improperbendradius,
andinsecure
in-
_
contamination of
the
thread
compound
or
stallation.
Replace
or
correct
if
any
of
these
tenon
tape
with
oil,
grease
or
other
lubricant.
conditions
exist.
Hose
clamp
installations
on
fuel and
hydraulic systems
between
systems
or
Fuel,
Hydraulic,
Air,
Oil
Lines
Use
"Parker
between
systems
and
the
engine
shall be
tor-
Thread Lube*
or
equivalent
on
male
fittings
qued
to
25
inch
pounds.
Hose
clamp
installa-
only. Apply
lubiicant,
omitting
the first
two
tions
on
blast
tubes,
air
ducts,
drain
and
vent
threads,
sparingly
and
carefully.
linesshall be
torqued
to
15
inch
pounds.
Engine
Fittings
Use
only
aircraft
engine
oil
to
4.
Pipe
Threads
Tightening
and
torque
lubricate
frttings
threaded
directly
to
engine.
procedures.
Lubricate
pipe
threads
as
follows:
Tapered
Threads
Use
Tenon
Threadseal
Oxygen
Lines
Use
only
MIL-T-5542
thread
Tape.
compound
or
Tenon thread
seal
tape
on
(1)
Continue
to
tighten
until
fitting
is
threads
of
valves,
connectors,
fittings,
Darts
or
correctly
positioned
but
do
not
overrun or
assemblies
which
might
come
in
contact
with
backoff.
oxygen.
The
thread
compound
must
be
applied
(2)
If leaks
are
detected,
tighten
one
sparingly
to
the
first three
threads of the
mail
full
turn
more.
fitting only.
(3)
I1 leaks
persist,
the
parts
should
be
disconnected
and
rejected; replace
with
new
components.
FLARE
NUT
TORQUE
VALUES
Tighten
to
minimum
torque
value
for
appropriate
size
as
shown
(Figure
5-1).
FITTINCi
SIZE
ALUMINUM
TUBING
STEEL
TUBING
TORQUE-
IN. LBS.
MINIMUM
MAXIMUM
MINIMUM
MAXIMUM
-3
30 70
-4
4()
65
50
90
-5
60
80
70
120
-6
75
125
90
150
-8
150
250
155
250
-30
200 350 300
400
-12
300
500
430
575
500
700
550
750
-20
600 900
-24
600
900
FLARE
NUT
TORQUE
FIGURE
5-1
5-20-01

MOONEY
AIRCRAFT
CORPORATION
MODEL M20L
SERVICE
AND
MAINTENANCE
MANUAL
5.
Electrical
wiring
shall
be
checked
as
ap-
7.
Filters and
screens
shall be
removed,
-plicable
for:
loose,
corroded,
or
broken
ter-
_
cleaned
and
inspected
for contamination
or
minals; chaffed,
broken,
or
worn insulation;
in-
damage
that
would
require replacement.
secure
installation;
heal
deterioration;_and
any
other
apparent
damage.
CAUTION
Ci.
Bolts
and
nuts
in critical
areas
shall be
These
torque
values
are
derived
Crom
oil´•froe
checked
for:
fretting,
wear,
damage,
stretch,
cadmium-plated
threads.
proper
torque,
(Figure
5-2)
and
safetying.
BOLT
-NUT
TORQUE
VALUES
----------------------’---"""""""""""--"""""-""’~""I"""""""""""""""""""
METRIC
BOLTS,
SCREWS
NUTS
Failure
of
threaded
fasteners
due
to
over-tightening
can
occur
by
bolt
shank fracture
or
by
stripping
of
the
nut and/or
bolts
thread.
A
bolt
or
screw
assembled
with
a
nut
of the
appropriate
class
is
intended
to
provide
an
assembly
capable
of
being
tightened
to
the bolt
proof
load without
thread
stripping
occurring.
The
torque
value
to
be
set
for
a
particular
size
of
screw
is
dependent
upon:
1)
Material of
the
screw.
2)
Parent
material
(sleel,
non-ferrous
metal
or
plastic).
3)
Whether
the
screw
is
untreated
or
plated.
4)
Whether the
screw
is
dry
or
lubricated.
5)
The
depth
of
the
thread.
TIGHTENING
TORQUES
Untreated
Screw(Black
Finish)
O.f4
eB8e~tPL
5.6
8.8
109
129
~YE
Nm/h.lh.
Nm/Tt.lb. Nm/Tt.lb.
Nm/n.lb.
MJ
0.60/0~44
1J7/1.01
1.92/1.42
2~j0/1.70
M4
137/1.01
3.10/2~9
4.40/335
525/3.87
M5
2.70/1.99
6.15/451
8.65/638
10.4n.a
M6
4.6/3.3
10~5/7.7
15/11
18/13
M7
7.6/5.6
175/12.9
25/18.4
t9/213
M8
11/8.1
26/19
36R6
43131
MtO
2/16
51/37
7US3
87/61
M12
39/28
89/65
125/92
150/110
M14
6U45
141/103
198/146
240/177
Mlb
95n0
3151158
3051225
3651269
Mts
130195
295/217
4201309 5001368
M20
184/135
420/309
590/435
710/523
M22
250/184
570/-120
80(1/590
9(41/M8
M24
3151~’J2
71J/SU
10201752
1220/899
M27
470/416
10701789
1510/1113 1810/1331
M30
635/468
1450/1069
205011511
2350/1806
M33
865/637
1970/165’
2770/2032
33UM2455
M36
1111/819
7~30/1865
3560/2625
4280/3156
M39
1440/1062
3190PA2~
4620/5107
5550/4093
(METRIC
TOROUE
TABLES
CONTINUED
ON
NEXT
PAGE)
5-20-Q1

MOONEY
AIRCRA~T
CORPORATION
MODEL
M20L
SERVICE
AND
MAINTENANCE MANUAL
Metric
Torque_T~bies
(Con(.)
8;8 10.9
12.9
Nm/ft.lh.
Nm/ft.lh.
NmlTt.lh.
M8x
1
27/19 38/28 4sm
M
10
x
1.25
52/38
73/53
88/M
M1Zx
1.25
95/70
135/99
160/118
M1Jx
1.5
150/110
210/151
250/1&1
M16x
1J
225/165
315M2
380/280
M18x
1.5
325P-39 460M9
SS0/J05
M20
x
1J
460/339
~O/J71
nO/567
M22
x
15
610/419
860/631
losom4
M2Jx2
780/575
11001811
1300/958
TI(;HTENINC
T<)RQUES
Electrical!v
Zinc
Plated
Fricrion
Coefici~tt
0.~25
5.6
8.8
10.9 12.9
’Laaf~LUE
Nm/lt.lb. n’mlft.lb.
Nm/ft.lb.
M3
056/0.41 1.28/0.9´•1
1.80/1.33
2.15/159
MJ
1.28/0.93 2.90/2.14
4.
ION.O,
4.95/3.65
M5
2.50/1.&2
5.75/4.24
8.10/5.97 9.70/7.15
M6
4.3/3.1
9.9/7.3 14/10.3 165/12.1
M7
7.1/5.7 16J/12.1 23/16.9
27/19.9
M8
105/7.7
2´•1/17.7
31/15 40r,9
M10
21/15
48/35
67/19
81/59
M12
36/26
83/61 117/86.2
140/103
MLJ
58/42 132/97
185/1.16
220/165
M16
88/W
200/147 285~210 350r-(0
Mis
121/89
25/202 390/287
470/316
M70
171/126
3~0P-87 550/405
660/486
M22
230/169
530/390
745/559 890/656
MW
295/217
(’,75/497 960/708
1140\810
M27
435/320
995:733
1400/1031 :~0ii239
M.30
590/435
1.150/9~5
1900/1401 1180/1651
M33
800/590
1580/1902
3090/2278
M36
1030/759
7360/17´•10
3310/2541
3980~2935
M39
13´•10/988
3050!1239
4290/3163
5150/3798
METRIC
TORQUE
TABLES
CONTINUED
ON
NEXT PAGE
5-20´•01
10

MOONEY
AIRCRAFI~
CORPORATION
MODEL MWL
SERVICE
AND
MAINTENANCE MANUAL
Metric
Torque
Tables
(Conl.)
8.8
10~9
129
Nn~fl.lb.
Nmm.lb.
Nm/Tt.lb.
MBx
1
25/18 35/25
42/30
M10
x
1.25
49/36 68/50
8U60
M12
x
1.25
881(rl
125192
150/110
M14x
1.25
140/103
195/143
2351173
M16x
IJ
3101141
350PS8
M1Bx
15
30S~ZJ
425/313
510/376
M20
x
1J
42snlJ
600/4´•12
71,0/531
M22
x
IS
570/420 800/590
960/708
M2~1x2
720/531
1000/737
1200/885
METRIC
CONVERSION
FACTOR:
One
Nm(Newton
Meter)
.7375
Foot
Pound;
One
Foot
Pound
1355818
Nm
AN/MS
STANDARD
BOLTS,
NUTS
TORQUE
TABLES
ii--------------------"-------
FINE
THREAD
SERIES
NUT--
TENS1()N-type
SMEAR-type
TENSION-type
SMEAR-type
BOLT
AN(
)BOLTS;
AN()BOLTS;AN-
NAS()
BOLTS
NAS()
BOLTS;
SIZE
AN-365/AN-310
365/AN310
AN-364/AN320
AN-364/AN320
NUTS
NUTS NUTS
NUTS
8-.76
12-15
7-9
1032
20-25
12-15
25-30
15-20
1/4-28
50-70
30-40
80-100
50-60
5/1(,-24
100-140
60-85
120-145
70-9(1
3/8-24
160-190
95-110
200-250
120-150
7/16-20
450-500
270-300
520-630
300-4110
1/2-20
480-690
290-410
770-950
4,50-550
9/16-18
80()-1000
480-600
1100-1300
650:800
5/8-18
1100-1300
600-780
1250-1550
750-950
3/4-16
2UK)-Zs(K)
1300-1500
2(,503200
1600-1900
7/8-14
250()-3000
15(8)-1800
35511-4350
2100-26(81
1-14
3700-5500
2200-3300
4,500-5500
2700-3300
11/8-12
5000-7000
8000-4200 6000-7300
3600-4400
11/4-12
9000-1
L000
5400-6600
11000-13000
6600-8000
5-20-1)1
11

MOONEY
AIRCRAFT
CORPORATION
MODEL
M20L
SERVICE
AND
MAINTENANCE
MANUAL
COARSE
~HREAD
SERIES
8132
12-15
7-9
10-24
20-25
12-15
3/4-20
40-50
25-30
5/16-18
80-90
48-55
3/8-16
160-185
95-100
235-255
140-155
1/2-13
41)(3-480
240-290
1500-700
3(K)-420
5/8-11
70(1-900
420-540
3/4-
10
1150-1600
700-950
7/8-9
2200-3000
1300-1800
TORQUE
VALUES
(Units
are
inch-pounds)
Figure
5-2
Reference:
Federal
Aviation
Agency
Advisory
Circular
No.
43.13-1A,
p.
118
Recommended
Torque
Values
for
Nut-Bolt
combination
1.
Be
sure
nut
and/or
bolt
threads
are
clean
and
dry(unless
Mfg.
states
otherwise.
2.
Run
bolt
down
near
contact
with washer
or
bearing
surface
and
check
"friction
drag
torque"
required
to
turn
bolt/nut.
3.
Add
"friction
drag torque"
to
the
recommended
torque
value
from
Figure
5-2.
This value
is
considered
"Final
Torque
Value".
(FRICTION
DRAG
TORQUE
REC’MD
TORQUE
FINAL
TORQUE).
CAUTION
DO
NOT
REUSE
LOCKNUTS
1F
THEY
CAN
BE
RUN
UP
FINGER
TIGHT.
6-20-02
AIRCRAFT
FILE
INSPECTION
5-20-04
FIRST
25´•HOUR
INSPECTION
Aircraft
100-hour
and
annual
inspections
cover,
The
25-hour
inspection
consists
of
a
visual
in-
in
addition
to
examining
the
aircraft
proper,
a
spection
of the
propeller,
engine,
and
aircraft
review
of the
status
of
compliance
with
current
general
condition,
including
a
preflight
inspec-
Federal
Aviation
Regulations.
This
review
in-
lion
as
outlined
in the
Airplane
Flight
Manual.
eludes
inspection
of
the
Airplane
Flight
The
inspection
does
not
require
removal
of all
Manual,
Aircraft
Log
Book,
Engine
Log
Book,
access
panels
or
disassembly
of
components;
Registration
Certificate,
Airworthiness
Certifi-
however,
it
should
include
completion
of
all
cate,
Weight
Balance
Record,
Porsche
Ser-
lubrication
8r
service
requirements.
The
inspec-
vice
Information,
Aircraft
Radio
Station
lion
should
be
extensive
enough
to
detect
any
License
(if
applicable),
FAA
Airworthiness
damage
or
maladjustment
which
might
jeopard-
Directives,
and
Mooney
serivce
documents.
ize
flight
safety.
1.
Visually
inspect
propeller,
spinner,
and
6-20-03
ENGINE
FUNCTIONAL
CHECK
engine
cowling;
remove
cowling.
Prior
to
a
scheduled
100-hour
or
annual
inspec-
2.
Inspect
and
clean
induction
air filter
if
Lion,
and/or
25
hours
alter
installation
of
new
or
aircraft
has
been
operating
under
dusty
condi-
overhauled
engine,
wash
down
the
engine
and
Lions.
Check
operation
and
condition
olaiter-
engine
components.
Then
perform
an
engine
nate
air
door
and
components.
runup
in
accord
with
procedure
recommended
3.
Inspect
engine
compartment
for evidence
in
the
Airplane
Flight
Manual.
Make
a
record
of
fuel,
oil
or
exhaust
leaks.
of
all
malfunctions
and
abnormalities.
4.
Check
security
and
condition
of
equip-
ment
installed
on
engine.
5-20-02

MOONEY
AIRCRAFT
CORPORATION
MODEL
M20L
SERVICE
AND
MAINTENANCE
MANUAL
5.
Inspect
fuselage,
wing
and
empennage
for
D.
Check
cabin.
instrument,
position,
an-
exttmal
evidence
ofdamage.
Pay
particular
at-
ticollision,
and
landing
light
(Illumination
and
tcntion
to
scratches
or
dents.
extension/retraction
cycle).
6.
Inspect
windshields
and
windows
for
craz-
E.
Checkfuel
selector
valve,
gascolator,
ing,
cracks,
or
scratches.
and
Main,
Boost and
Emergency
fuel
pumps
for
7.
Check
control
systems
for
binding,
exces-
proper
operation.
sive
freeplay,
or
damage.
F
Check
oxygen
system
(if
installed).
8.
Check
pilot
and
static
systems
for
pos-
4.
Landing
Gear.
sible
obstructions.
A.
Check
tires
for
cuts,
blisters,
worn
I).
Inspect
Landing
Gear
Assemblies
for
areas,
and
proper
inflation.
damage
and
security.
B.
Check
shock
discs for
proper
exten-
10.
Inspect
aircraft
exterior
for
security
of
sion
at
aircraft
static
weight.
bolts,
screws,
etc.
C.
Check
hydraulic
brakes
for
wear,
war-
II.
Check
and
service
battery.
pageand
proper
installation.
5-20-05
-80-HOUR
INSPECTION
5.
Wings.
A.
Check
surfaces
and
tips
for
damage.
The
50-hour
inspection
includes
all
require-
B.
Check
ailerons,
aileron
attachments,
mcnts
for
the
25-hour
insyection,
plus
the
and
bellcranks
for
damage
and
proper
opera-
necessary
removal of
inspection
doors,
panels,
tion.
or
fairings.
C.
Check
naps
and
attachments
for
A.
Inspect
engine intake,
exhaust
and
damage
and
proper
operation.
muffler
systems
for
evidence
of
leakage
or
D.
Lubricate
controls
and
flight
surface
looseness.
pivot
points
if
necessary
(refer
to
Lubrication
B.
Check
spark
plug
elbows
and
shielding
Chart/Diagram
at
the end
of
this
Section.
nuts
for
securi~y.
6.
Fuselage
and
Empennage.
C.
Check
cooling
fan
shroud
and
belts Tor
A.
Check
stabilizer,
elevators,
fin,
and
security,
rudder for
damage
and
proper
attachment.
D.
Check
baffles
for
security
and
B.
Lubricate
controls and
night
surface
freedom
from
cracks.
pivot points
ifnecessary.
E. Check
engine
control for
operation,
7.
See
Section
5-20-07
for
repetitive
50
hr.
full
travel,
freedom
of
movement,
and
security.
inspection
and
service
components.
F.
Visually
check
fuel
and oil
lines
for
security
of
connections
and
evidence
of
leakage
5-20-08
100-HOUR
INSPECTION
(or
or
damage.
ANNUAL) (Refer
to
Pig,
5-3)
G.
Visually
inspect
induction
air
system;
The
10C)-hour
(clr
annual)
inspection
is
a
check
operation
of
alternate-air
door
(refer
t;
thoroueh,
searching inspection
of
the
entire
paragraph
7L-62-0()).
aircraft.
Preparation
f;lr
the
inspection
includes
2.
Propeller.
the
removal of the
fuselage,
wing,
and
empcn-
A.
Check
propeller
and
spinner
for
nage
inspection
doors,
cover
plates,
and
litirings
general
condition,
looseness,
and
oil
leakage.
at
all
systems
attach.
hinge,
and
bearing
loca-
B.
Inspect
blades
for
nicks
and
cracks.
li""s
(inclucfing
wing
and
empennage
to
Repair
prior
to
next
night.
fuselage
mating
po;nisj.
~)peraling
limit
re-
3.
Cabin.
placement
and
special
testing
of
components
is
A.
Check
brake
and
parking
brake
con-
to
he included
at
this inlen~al
when
applicable.
trol
systems
for
proper
operation
and
nuid
Comply
with
applicable
FAA
Directives,
AD
level.
Notes.
and
applicable
Mooney
or
Vendor
Ser-
vice
Bulletins
dr
ins~ruclions.
Check
fclr
B.
Check
trim
system
and
indicator
for
operation
and
travel
(Evianually
and
clcctrical-
aircraft
conlnrmance
to
FAA
AircraTt
Specification
No.
2A3
(currcnt
revision).
ly).
Recommended
Z(H)-hour
and
special
inspection
C.
Check cabin
and
baggage
doors
for
requirements
are
outlined in
the
followinp
damage,
proper
operation,
and
sealing.
paragraphs.
5-20-05

MOONEY
AIRCRAFT
CORPORATION
M()DEL
M20L
SERVICE
AND
MAINTENANCE
MANUAL
i.
ENGINE
INSPECTION.
Prior
Lo
the
in-
I.
Remove
Fuel Filter.
Remove
fuel lines
spection,
remove
engine
cowling
and
propeller
from
each
end
of filter:
remove
Gttings
from
nl-
spinner.
Wash down
the
engine
and
engine
ter.
Release
retaining ring
from
611er
and
comparlmenl.
Perform
an
engine
runup
in
ac-
remove
from
aircraft.
Using
new
gaskets,
install
cord
with the
procedure
recommended
in the
filtings
on
new
filter.
Porsche
Engine
Maintenance
and
Operators
Install
new
biter
and
secure
retaining ring.
Manual.
To
verify
correction
of
malfunctions
Be
sure
to
observe
the
flow
direction.
Turn
and
abnormalities,
perform
a
second
runup
and
Balterv
Switch and Main/Boost
fuel
Dump
ON
fight
lest
after
the
100-hour
inspection
engine
and
verify
that
fuel
pressure
light
goes
out.
set-up.
Check
fuel lines and
filter
for
any
leaks.
A.
Complete
a
differential
(hol
engine)
J.
Remove
and
inspect
gascolator
compression
check.
Clean
and
gap
or
replace
strainer,
clean
gr
reinstallstrainer.
Remove
and
spark
plugs
if
necessary.
II
Cap
on
most
worn
replace
2
micron
fuel
strainers
on
the
firewall.
plug
exceeds
.047
in.,
since
last
200
hr.
inspec-
Inspect
fuel
lines
and
conneclions:pressure
lion
and
gapping,
the
associated
ignition system
check
fuel
system
with
Main/Boost
fuel
pump
needs
Lo
be
checked
for
proper
operation.
ON,engin;OFF.
Refer
to
Porsche
Engine
Maintenance
Manual.
K.
Remove
Air
Filler
cartridge,
check
B,
Check
Valve
clearance.
suction
opening
for
dirt
and
clean
if
needed.
Refer
to
Porsche
Engine
Maintenane
Manual
Use
compressed
air(no
more
than
60
PSI)
to
for
specific
steps
to
accomplish.
blow
out
cartridge
from
inside/out.
Re-install
C.
Check
backlash
on
Propshaft.
Verify
filter
cartridge;
replace
with
new
filter
after
5
Propeller
shaft
bolts
are
torqued
to
800
in.lbs.
years
or
51H)
Hours.
Cicntly
move
propeller
blade
to
check
for
gear
L.
Inspect
air
ducting
and
connections
in
backlash.
The
backlash
should
not
exceed
.311
the
heating
and
induction
air
systems
for
leaks.
inches
at
the
tip.
Remove
and
clean
induction
air
filter(replace
at
D,
(;ear
Box
and
Torsional
Coupling
in- 5
Yrs.
or
500
Hrs).
Leak
check all
ex-
spection.
Remove
cooling
duct
from the
right
haust/maniroid
connections,
engine
exhaust
side
of the
propeller
gear
hox.
While
rotating
manifold
and
muffler
areas.
the
propeller,
use
a
flashlight
to
visually
inspect
M.
Examine
V-Belts
(2
ea.)
on
cooling
fly
wheel
gear
surface
for
wear
and/or
damage
fan
for
damage,
cutst
breaks
and
wear.
Check
and
check
the
torsional
coupler
for
any
signs
of
belt
tension
bv
pushing
on
the
belts
in
the
mid-
ply
separation
or
undue
wear.
die
of the
bcit
span
using
a
force
0122.5
Lhs.
E.
Inspect
engine
for
evidence
of fuel
and
The
belt
deviation
from
static
position
should
oil
leakage.
Inspect
oil
cooler.
Inspect
oil
cP(
be
between
.31
and
.30
inches.
Replace
the
fuel hoses
for
condition
gr
security.
belts
in
pairs
if either
one
does
not
meet
the
F.
Drain
oil
from
tank
and
engine:
above
lest.
reinslilll
drains
and
safely.
Remove
full-pow
oil
N.
Alternator
backlash
inspection:
Use
piler
cartridge;
replace
with
new
cartridge
and
pnger
to
gently
move
the
alternator
Tan
blade.
safely.
Check
oil tank
breather
line
for
ot,struc-
C’heck
to
see
if the
play
at
Can
blade
rip
is
no
Lion.
more
than
.080
in.
If it
exceeds
this
tolerance
CI. Service
engine
oil
tank
lear
box(if
Refer
to
Porsche
Engine
Maintenance
Manual.
drained)
with
the
proper
type,
grade,
and
quan-
Check
distributors
for
condition
(500
lily
of
lubricating
oil.(REF.
Porsche
Operators
hrs).
Repair
or
replace
components.ir
required..
Manual)
Run
engine
fc,r
3.0
minutes
to
lilt all
Check
barnes
fclr
security,
cracks,
holes,
areas
of
engine
and
gear
box(if
drained).
deiclrmalion,
and
for
pt
around
cylinders.
THEN
refill oil
tank
to
proper
level
k,r
opel´•a-
Check
ballle
sealant.
Lion.
DO
NOT
USE
AVIATION
C;RADE
O.
Check
engine
conlrclls
for
clperalion,
OIL.
p’ope’
lubrication.
full
travel,
and
security
of
H.
Inspect
fuel
injector
and
all
fuel
line
attachment.
connections
Tor
security
and
condition.
Inspect
R.
Inspect
enrrine
mount
C~lr
cracks:
fuel
pump
connections
inside
shroud,
under
check
all
bolts
and
rubber
mounts
for
security
poorboard,
and
fuel
supply
line
where
it
and
condition.
penetrates
the
prewall.
5-20-06