Mooney M20B Installation and user guide

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$84~AINTENANCE
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~ANUAL
20B
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AIRCRAFT,
INC.
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SCHREINER
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KERRVILLE,
TEXAS
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OLDWILLWAYNE

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OLDWILLWAYNE

B
7A8LE
OF
CONTENTS
I.
~NTRODUCTION
Page
1
A.
General
B.
Scope
of
Manual
t‘.
Description
fl.,´•HA~DLING
AND
SERVICING
Page
6
~4.
General
Access Provfsions
Ground
Handling
1.
HOISTING
2. LEVELING
4.
MOORING
5.
TOWING
D.
Servicing
1.
EfUEL
SYSTEM
2.
LUBE
On
SYSTEM
3.
BRAICE SYSTEM
E.
Lubrication
III, POWER PLANT
Page
17
A.
General
B.
Troubleshooting
C.
Engine
Removal
.P
D.
Propeller
Removal
E.
Engine
Installation
F.
Propeller
Installation
G.
Adjustments
C.
1.
CARBURETOR
IDLE
~MMTURE--
2.
ENGINE
IDLING
SPEED
rv.
STRUCTURE
Page
24
´•A.
General
B.
Removal
of
Wing
Components
1.
REMOVALOFWING
2.
REMOVAL
OF
WING FLAP
3.
REMOVALOFAaEROr:
C.
Installation
of Wing Conrponents
1.
INSTALLATION
OF
WING
2.
INSTALLATION
OF
FLAP
3.
INSTALLATION
OF
AnLErlN
v.
LANDING
GEAR
AND BRAKE
S’ISTEM
Page’
29
A. General
B.
Removal
of
Landing
Gears
1.
MAIN
LANDING
GEARS
2.
´•NOSE GEAR
C.
Removal
ar,t!
Disassembly of
Shock Discs
I.
MAIN
GEAR
2.
NOSE
GEAR
D.
Reassembly
and
Installation
of
Larding
Gent
1.
MAIN
GEAR
2. NOSE GEAR
E.
Brake
a.-,d
Wheel
Maintenance
I.
BRAKE LINING INSPECIION
AE~0
REPLACEMEh"P
2.
~HEn
ASSEMBLYINSPECTION
F.
Lctzolrng
Gear
Rigging
Procedure
j
OLDWILLWAYNE

Ys,
TABLE
OF
CONTENTS,
Continlted
VL.
CONTROL SURFACES
Page
36
A.
General
B.
Removal
and
Installation
1.
AnERONS
2.
RUDDER
3.
ELEVATORS
4. FLAPS
C.
Contro?Swfaces
General
Specifications
1.
WINGS
2.
~MPPYNNACE
3.
REMOVABLE
CONTROL
SURFACE
D.
Rigging
and
Adjustment
1.
ILTLERON
RIGGING
AND
ADJUSTMENT
2.
TRIM
RICGTNG
AND
ADJUSTMENT
3.
FLAP
RIGGING
AND
ADJUSTMENT
4.
RUDDERRIGGINGAND
ADJUSTMENT
5-
ELEVATOR
RIGCINC
END
ADJUSTMENT
VII.
FUEL SYSTER;Z
Page’44
A.
General
B.
Troubleshooting
C. Removal
and
nstcrllation
of
Fuel
Pumps
1.
ELECTRIC
FUEL’PUMP
2.
RIECHANICAL FUEL PUZMP
D.
Removal and
Installation
of
Fuel
Selector
V~rlve
1.
RE~IOV.4L
2.
INSTALLATION
E..Fietd
Repair of
Fuel
Cells
I.
GENERAL
--=-2.´•
APPAOV~DIMATERIALS
3.
HANDLING
AND
MIXNNG SEALANT
4.
SEALANT
APPLICATIONINSTRUCTIONS
5.
DESCRIPTION
OF
LEAKS
6. LEAK
DETECTON
7.
LEAK
REPAIR PROCEDIjRE
vnI.
ELECTRICAL SYSTEM
Page
56
A.
General
´•B.
T702tbleshootin4
1.
ELECTRICAL
S~ITCHES
AND
CIRCUIT BREAKERS
2.
BATTERY
3.
BATTERY
CHARGING
RATE
C.
Electrical
System
Master
Diagram
rr´•
1.
EQUIPMENT
LIST
--;-’z;
2.
DRA\MNG
NOTES
3.
WnuNe
TABLE
IX. ~ZNSTRUMENTS
Page
68
A.
General
B.
X.
INSPECTION
Page
~74
A.
General
B.
Prefiight’-lnspections
C.
25
Hour
Inspections
D. 50
Hour
Inspections
E. 10G
Hour
Inspections
F.
Oz;erLi7nits
Inspections
G.
Post
Inspection
Checks
i’
OLDWILLWAYNE

LIST
OF
ILZIUSTRATIO~S
Table
1
Leading
Particulars
and
Principal
Dimensions.
Page
2
i,
Access Panels
and
Plates.
Page
7
2.
jacking
Arrangement,
Page
8
3.
L~Pveling
the
Aircraft.
Page
9
4,
Plei~fiing
the
Aircraft.
Page
10
5,
Attachment
of
Nose
Wheel
Steering
Bat.
Page
11
6,
Fuel
Strainer
Drain.
Page
13
7,
B´•ake
Cylinder
Reservoir.
Page
14
8,
Lubrication
Chart.
Page
15
9,
Recommended
LubricatingOils.
Page
1’6
Table 2
Engine~Troubleshooting.
Page
18
10,
Aircraft
Wing
Skin
Chart.
Page
26
11.
Aircraft
Fuselage
Skin Chart,
Page
27
12
Aircraft
Tail
Surfaces
Skin
Chart.
Page
28
13,
GearRig~ingDiagram.
(SeeFigurel3A,13B,P3c)
Page
34,
35,
35B
14.
AiletonControlSystem.
Page
38
j
15.
Control
Travel
Jig.
Page
39
16,
~m
Contrbl
System.
Page
41
17;
Flap
Control
System,
Page
42
18.
Ruddez Control
System.
Page
43
Table
3
Fuel
System
Troubleshooting
Page
44
20,
Fuel Valve
Assembly..
Page
46
21.
Typical
Sealant
Application.
Page
49
22.
FueI
Leak
Classification,
Page
52.
23.
Leaks
Which
Constitute
a
Flight
Hazard.
.,page
53
24.
Tank
Leak
Detection.
Page
55
Table
4
Hydrometer
Readings
vs.
Battery Charge
Percent,
Page
57
Table 5
Electrical
System
Troubleshooting.
Page
58
Table
6
Electrical
Equipment
List,
Pages
62
63
26. .Electrical
System,
Master
Wiring
Diagram.
(Figure26A&26B)
gages
65
8r´•
66
27,
Instrument
Panel,
Page
67
Table
7
instrument
Troubleshooting.
Page
69
28.
Three
View
Drawing.
Page
78
C~
1
OLDWILLWAYNE

SECTION
INTRODUCTION
OLDWILLWAYNE

E
C
A.
GENERAL
This
manual contains
service
and
maintenance
information for
the MOONEY
~H
20B
Aircraft which
was
designed
and
manufactured
as
a
high
performance,
low
main-
tenance,
versatile
aircraft
for the
personal
and business aviation
field.
B.
SCOPE
OF
THIS MANUAL
Sections
two
and
ten
comprise
the
service
pirt
of
this
handbo~k,
whereas
the
remaining
sections
comprise
the
maintenance
instructions.
The
service
instructions
in-
clude
ground
handling,
servicing,
and
periodic
inspections.
The
maintenance instruc-
tions
for
each
system
include
trouble-shooting,
removal
and
installation of
components,
corrective
maintenance
and
testing;
each
major
system
of
the
aircraft
is
covered
in
a
separate
section.
Only personnel
should
perform
the
operations
described
in
this
manual.
The
desc’;iption
6f
the
aircraft
includedP
in
this
section
is
limited
to
general
infor-
mation.
Refer
to
the
"Owners
Operating
Manual"
for
a
more
detailed
description
of
the
aircraft. Tab;e
1
lists
the
leading
particula;s
and
principal
dimensions.
j.
OLDWILLWAYNE

Table
1
I~EADING PARTICULARS AND
PRfNCIPAL
´•tio;~
1.
ENGINE
Model
Type
Certificate
286
Rated
Horsepower
180
Rated
Speed,
rpm
2700
rpm
Cruise
speed
(Economy)
2350
rpm
Cruise
speed
(performance)
2450
rpm
Fuelconsumption
(economy
cruise)
9
gph
OilConsumr,tion
(!!erformance cruise)
0.80
qt.
Propeller
d~ive ratio
1.1
Propeller
shaft
rotation
Clockwise
Bore
-5.125
in.
Stroke
4.375
in.
Displacement
361.0
cubic
in.
Compression
Ratio
8.50:1
Pry weight
(with
starter
generator)
286
Height
24.59
in.
Width
33.57
in.‘
Length
29.81
in.
Oil,
SAE
numbers:
above’40’
F(4.4’ C)
SAE
50
Between
40’
F14.4’C)
and
10’
F
(-12.2" C)
SAE
30
Below
10"
F(-12.2’
C)
SA~
20
Oil
Sump Capacity~
8.qts.
Fuel,
Aviation
grade (minimum)
91-96
Carburetor,
Marvel-Schebler
MA
4-5
Magneto,
Bendix
Scintilla(2)
_
S4LN-204
(Right)S4LN-200
(Left)
Magneto
Timing
25
degrees
RTC
Magneto
Point
Setting
_
.018 .006
Spark Plug
Gap
Setting
(Shielded) ,015to.018
Tachometer
drive,
ratio
to
crankshaft
0;5:1
’i’’
Firing
order 1-3-2-4
Tachometer
drive
rotation
Clockwise
Starter
drive,
ratio
to
crankshaft
13.55:1
Starter drive
rotation
Cour;terclockwise
Starter,
Delco-Remy
12V
1109689
Generator
drive,
ratio
to
crankshaft
Generator
drive
rotation Clockwise
Generator,
Delco-Remy
12V
50
Amp
110191.5
Generator
voltage
regulator,
I)elco
Remy
1119224
A-N
Vacuum
Pump
Drive,
ratio
to
crankshaft
1.30:1
A-N Vacuum
Pump
Drive Rotation
Coirntercloc~u´•ise
Propeller
governor
drive
AN 20010
type
XX
FuelPump
drive
E~unger
.i\
,2.
OVERALL
’C~ing
Span
35
ft. 0
in.
Length
2.3
ft.
2
in.
Height
8 ft.
4~
in.
´•Clearance,
Propeller tips
10~
in:Approx.
-2-
OLDWILLWAYNE

Table
1
L~EADIPfG
PARTICULARS
A~ PRINCIPAL
DIMENSIONS
3.
CONTROL
SURFACES
Aileron
Travel
1
Up
12540
to
170
Down s0
r
10
Neutral
or
Static
00to20Down
1
´•Full
Down
213/4
i"
Flb,
Travel
Intermediate
Down
110
t
i"
Neutral
or
Up
00
10
Elevator
Travel
Up
240
10
Down 10’~40
c
P
Trim
Full
Nose
Up
-180
to-200
RudderRight
180
Left
1801~
1"
4. LL4NDING
Type
Manually
Retracted
Thread 9 feet
3~
inches
Main
FVh,el
T;ypi~
Cleveland Air
Products
Main Tire
6iPly,
6:00
x
6
Main
Tire
Pressure 24
to
30
Pounds
Brake
Type
Cleveland
Hydraulic
Fluid
Required
Hydraulic,
3580
Nose
~cel
Type Goodyear
Products
Nose
Tire
4
ply,
500x5
L
Ndse
Tire-Pressure
24
to
30
Pounds
5.
PROPELLER
Manufacturer
McCauley
tr.s
Type
Constant
Speed
´•c,
Hub
2D36C14
Blade
78KM-4
’Diameter
74
Inches
Control
Governor
Woodward
Blade
´•Ang~e,
Low
12.7"t
d"
B1´•de
Ane~e,
High
n.5’
.5’
6.
TANK
CAPACITIES
Main
Fuel
Cells(2)
48
Gallons
Engine
Oil
Sump
8
Quarts
7.
mT~INGS
Span
35
Feet
0
Inches
Len~th
of
Flap,
Trailing
Edge
10
Fee-i
8
Inches
Length.of
Airleron,
Trailing
Edge
5
Feet
3’k
Inches
Dihedral,
Leading
Edge
5’
30
Minutes
Incidence
2’
30
~Iinutes
a
OLDWILLWAYNE

:;:~r´•´•
AND
PRINCIPAL
DIMENSIONS
8.
EMPEi\TNAGE
Vertical
Fin
Art~a
7.9
Square
Feet
Rudder
Area
5.01
Square
Feet
Horizontal
Stabilizer
Area
21.5
Square
Feet
Elevator
Area
12.0
Square
Feet
9.
WING
AREAS
Wings
(total
area
less
naps
and
ailerons)
16?,Square
Feet
Total
Aileron
Area
11.2
Square
Feet
Total
Flap
Area
17.2
Square
Feet
DESCRIPTION
The
M 00 NEY
M 2 0 8
is
a
four
place,
low
wing_monoplane
of
metal
construc-
tion.
It
is
powered
by
a
180
horsepower
Lycoming
0-360-AID
engine
and
is
equipped
with
an
all
metal
McCauley
constant
speed
propeller.
Conventional
i;Sipe
controls
are
provided
with
rudder
pedals
and
control.
wheels.
Entrance
to
the
cabinis
made
through
the
cabin
door
:ocated
on
the
right
side
of
the
airplane.
The
front
seat backs
fold
forward
to
allow
passenger
entry~to
the
rear
seats.
The
baggage
compartmen~
is
an
of
the
rear
seat
and
an
outside
baggage
door
is
located
aft
of
the
cabin
door.
The
baggage
compartmenf
is’
accessible from
the
rear
seat
during
flight.
I.’ENGINE
The
Lycohing
0-360-AID
engine
is
rated
at
180
HP
at
27d0
RPM
and
is
mounted
on~dynafocal
engine
mounts
to
dynamically
~balance
the
engine
during
flight
and
to
the
transmission
of
vibration
to
the
cabin
2.
WING
The
MoontyM2OB
uses
a
laminar;flow
wing.
This
wing
reduces
drag
improves
aerodynamic
efficiency
over
standard
airfoils,
and
yet
retains
verv
docile
slow-
flight
and
stall
characteristics.
3.
FUSELAGE
The
fuselage
tailcone
section
is of
monocaque
construction.
Aluminum
ski?,
dip-
ped
in
zinc-chromate
primer
for
corrosion
protection,
is
riveted
to
heat-treated
aluminum
b~kheads
to
form
the
tail
cone
section.
Extruded
aluminum
stringers
add
longitudinal
strength
to the
tail
cone.
4.
The
tail
empenr~age
is
constructed
on
optically’aligned
jigs
that’~sure
uni-
formity
and
close
tolerance
fit~
for
all
parts.
5.
IGNITION
This
engine
utilizes
the
latest
ignition
system
which
gives
quicker,
easier
starts
and
longer
ignition
life.
6.
PROPEI~LER
A 14 inch
M~Cauley
all
metal
constant
speed
propeller
provides
a
low
pitch
set-
ting
for
maximum
take-on
power
and
automatic
pitch
changing
controlled
bj´•
an
engine
mounted
governor
for
maximum
efficienc3´•
at
cruising speeds.
--e
OLDWILLWAYNE

7.
MOVABLE
CONT~OL
SURFACES
AND
FLIGHT CONTROLS
The
ailerons,
e;~vator,
and
rudder
are
of all
metal
construction.
They
are
J1g-
6~
built
using
hinges
of
machined extrusions. The control
system
requires
very
little
maintenance,
and
provides
superior
control-feel,
because
torque
tubes,
rather
than the
conven’ion~i
cable
system,
are
used
to
actuate
the controls.
8.
BReLYE
SY~jTEM
The
MOONEY
M 20
B
uses
Cleveland
Disc-Type
hydraulic
brakes.
9.
GEAR
The
landing
gear
is
unique
in
that
it
is
manUlallv
retracted
by
the
pilot.
Gear-
i:’
assist
spri?gs
in
the
wings,
aided
by
bungee-type
springs
in
the
fuselage,
make
the
manual
operation
of
the
gear
quite’simple.
10. FUEL
SYSTEM
The
fuel
system
consists
of
24
gallon
fuel
cells
located
in
the
ftont
portion
of
each
These
celle
are
formed
by
sealing
off,
through
the
use
of
a
special
sealing
compound,
a
portion
of
the
wing.
_~__
~ta
II.
INSTRUIMENT
PANEL
C
The
instnunent
panel
has been
scientifically-
designed
to
proyide
functional
location
of
~ill
flight,
radio,
and
engine
instrument
groups.
12.
REATER.AND
DEFROSTER
SYSTEM
Cabin
heat
is
supplied
by
a
heater
muff
which
transmits
air~heated
by
con-
duction
from
the
engine
exhaust
manifold.
13.
VENTILATI3N
SYSTEM
Four
individual
airline-type
adjustable
vents
are
~located in
the
center
of
the
cabin
roof
to
provide
fresh
air´•for
each
passenger.
14.
BORWARIj
VENT
SYSTEM:
Two
vents
under
the
instrument
panel
provide
a
second
source
of
fresh
air
for
the cabin.
-5-
n
OLDWILLWAYNE

SECTION
HANDLING
AND
SERVICING
OLDWILLWAYNE

SECTION
ii
HANDLING
AND
SERVICING
A.
GENERAL
This
section
provides
ground
handling
and
servicing
instructions.
B.
ACCESS
PROVISIONS
Figure
1
shows
the
location
and
identity
of the
access
pane~
and
plates
that
provide
access
for
purposes
of
service
and
maintenance.
C.
GROUND
HANDLING
The
following
instructions
are
recommended
to
avoid
damage
to
the
airplane
during
ground
operations.
If
improperly
handled,
extensive
damage
to
the
airplane
and
its
equipment
may
result.
The
airplane
may
be
taxied
as
required
for
normal
mane-
uvers.
Brakes
or
rudder
pedals
may
be
used for
turning.
If
a
towbar
is
used,
one
man
may
move
the
airplane
providing
it
is
on a
fairly
smooth
level
surface.
Poin~
where
pushing
the
airplane
are
permitted
are
leading
edge
of
the
wing,
vring
tips,
and
the
inboard
position
of the
propeller
blades
adjacent
to
the
propeller
hub.
1.
HOISTING
When
it
is
desired
to
raise
the
airplane
off
the
ground
to
check
operations
of
the
landing
gear,
it
is
suggested
it
be
done
in
the
following
manner.
By
using
jack
points
provided,
outboard
of
each
main
gear,
it
is
possible
to
use
standard
aircraft
jacks
to
raise
the
main
gear
off
the
ground.
By
using
a
rope
sling
and
c!lain hbist
it is
possible
to
raise
the
nose
gear
clear’
of the
ground
and
r‘
then
the
retraction
mechanism
can
be
checked
and serviced
in
the
usual
manner,,
(See
Figure
2).
2.
LEVELING
Lo~tigitudinal
leveling
is
determined
by
placing
a
spirit
level
on
the
door
sill
parallel
to
the thrust
line
(Fig.
3).
Adjustments
may
be made
by
increasing
or
decreasing
air
pressure
in the
nose
wheel
tire
wh~i´•1 the
airplane
is
on
the
ground
or on a
set
of
scales
for
weighing.
3.
WEEGGHING
Position
a
scale
in
front
of each
of
the
three
whe~s. Place
a
ramp
on
each
scale
and
tow
the aircraft
up
onto
the
scales.
Remove
the
ramps
and
proceed
to’weigh
the
aircraft.´•
(Fig.4).
4.
MOORING
When
mooring
theMooncyMZOB,
the
following
method
is
recomnrended.
Place
chocks
fore:
and aft
of
each
main
wheel.
Stakes
may
then
be
driven
in
the
ground
outboard
of
each
main
gear,
approximately
three
feet,
and
at
the
tail´•skid
location.
Tie
down
rings.are
provided,
two
feet outboard of
each main
gear,
at
´•the
jack
point.
A
tiedown
ring
is
also~provided
at
the
tail
5.
TOWING
A
suitable
towbar
is
provided
as
standard
equipment~
airplane.
The
lower
bar
of
the
towbar
is
placed through
the
gear
crossmember
(See
Figure
5).
Care
must
be
exercised that
the
nose
gear
is
not
rotat_ed
past
its
normal
s~vel
angles.
(Note:
Check
to
see
that
park
brake
is
off
before
airplane.)
--6
OLDWILLWAYNE

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OLDWILLWAYNE

3A~1
KING
p~lRANGEMENT
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Figute
3
LEVELING
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Figure
4
L~EIGHING
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AIRCRAFT
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Fi~ure
5
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OLDWILLWAYNE

D.
SERVICMG
1.
FUEL
SYSTEM
a.
Filling
The Fuel Cells.
Each
wing intragal
fuel cell
has
a
capacity
of 24
Il.
S.
gallons
and
is
acces-
sible
for
filling
by
lifting
a
dzus
fastened
door
and
removmg
the
ex-
pansion
type
gas
cap.
A
scupper
box
drain
is
provided
to
drain
off
any
gasoline
spilled
outside the
filler
neck
opening.
The fuel
cell
drain
is
located
on
the
intoard
corner
under
each
wing.
This
is
the
lowest
point
of
each
fuel cell.
b.
Fuel
Strainer.
The
fuelstrainer
(r’igure6)
is
located
in
the
nosewheel
well.
It
is
equipped
rrith
an
easy
drain
and
should
be
checked
for
water
or
dirt
accumulations
and
drained
regularly,
c.´•
Draining
Fuel
System.
Drain
the
fuel from
the
system
by
removing
the
flush
drain
from
the
bottom
of
the fuel
selector
valve.
(Note:
the fuel
selector
valve
must
be
turned
on
the
tank
being
drained).
f~.
I~UBE
OIL
SYSTEM
a.
Filling’
Engine
Sump.
Fill
’the
engine
sump
with
the
lubricating
oil
spectfied.in
Table
i.
b.
Draining
Engine
Sump.
r
The
engine
sump
can
easily
be
-drained
by
means
of
the
oil
quick
drain
is
installed
in
each
MooneyMiO~i
airplane
as
standard
equipment.
3.
BI~AKE SYSTEM
a.
Filling
Brake
Cylinder
Rsservoir.
The
brake
cylinder
reservoir
iFigure
7)
must
be
filled
with
the
brake
fluid
specified
in
Table
1.
It
should
be
checked
at
every
100
hour
inspec-
tion
and
replenished
when
necessary.
After
initial
installation,
the
Cleve-
land
Disc
Brakes
require
no
adjustment
whatever,
during
the
service
life
of
the brake
lining.
(Caution:
Do
not
fill
reservoir
while
parking
brake
is
set.)
b.
Draining
the
Brake
System.
Tb
drain the
brake
system,
~pen
´•t~4e’brake
bleeder
va13e
on
the
brake
discs
and
slowly
pump
the
brakes
until all
the
fluid
runs
out.
The
brake
system
can
be
cleaned.
by
flushing
out
with
denatured
alcohol.
E.
LUBRICA’I~ION
Refer
to
the
Lubrication
Chart
(Figure
8) for
instructions
regarding
the
location,
time
intervals,
and
Srpe~
of
lubricants
used.
Grease
fittings
are
provided
on
the
nose
gear
and
the
main
gear.
Bearings
used
in
´•bell
cranks,
hinge
points,
and
rod-ends
are
of
the
sealed
type
and
do
not
require
per’iodic
lubrication.
Avoid
excessive
application
_.of
lubricants.
Excess
lubricant
on
exterior
surfaces
of
bearings
tends
to
attract
dirt
and
grit,
and
may
lead
to
malfunction
of
the
unit.
Where
a
reservoir
is
not
provided
around
a
bearing,
apply
the
lubricant
sparingly
-12-
OLDWILLWAYNE

FigureB
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