Mooney M20K - Page 74

MOONEY
AIRCRAFT
CORPORATION
M20K
SERVICE
AND
MAINTENANCE
MANUAL
(2)
If
the
base
metal
is
steel,
remove
the
B.
Cleaning
Procedures.
corrosion
product
with
emery
cloth
(320
grit
or
finer)
or
NOTE
steel
wool.
Fiberglass
components
are
attacked
and
(3)
If the
corrosion
is
too
advanced
to
remove
by
deteriorated
y
products
containing
the
the
light
mechanical
cleaning
methods
of
(1)
and
(2),
following
chemicals:
Ketone,
aliphatic
esters,
refer
to
Advisory
Circulars
43.13-~1()
and/or
43-4’f;i;
chlon’nated
hydrocarbons
and
siightly
softened
aitemate
methods
of
cleanup
and
repair.
by
aromatic
hydrocarbons.
(4)
Chemical
cleaning
solutions
should
be
used
(1)
Fuel
Servicing
Decal
Removal:
with
extreme
caution
on
both
aluminum
and
steel
parts.
Such
solutions
are
not
recommended
for
use
in
areas
(8)
Cover
the
decal
with
a
hot,
wet
towel
for
where
they
cannot
be
easily
and
completely
approximately
2
minutes.
neutralized.
Lift
one
comer
of
the
decal
and
slowly
B.
Wash
all
areas
to
be
zinc
chromated
with
a
remove.
cleaning
solvent
such
as
methyl
ethyl
ketone
(MEK),
(2)
Remove
all
old
loose
paint
by
one
of the
Turco
T-657
CTurco
Products,
Inc.,
6135
South
Central
following
methods:
Ave.,
Los
Angeles,
Califomia),
lacquer
thinner,
#3094
wash
thinner
(Pratt
3
Lambert,
Inc.,
25th
and
N.Y.
(a)
On
alurrinum
for
uniformity
of
finish
Avenue,
Wichita,
Kansas)
or
similar
solvents.
appearance,
the
entire
skin
panel
should
be
prepared
for
repainting.
if
the
paint
is
in
very
bad
condition or
if
a
filler
is
(1)
To
get
a
good
clean
surface
for
zinc
chromate
t,
b,,sed,
remove
all
of the
paint
by
use
of
lacquer
priming
use
a
clean
cloth
or
piece
of
cheesecloth
and
thinner,
MEK
or
similar
solvent
Careful
application
of
paint
apply
one
of
the
solvents
noted
above.
The
surface
stripper
is
acceptable.
The
solvent
should
be
wiped
on
and
should
be
wiped
dry
with
a
second
piece
of
clean
cloth.
Do not
allow
the
solvent
to
dry
on
the
cleaned
area
as
it
wiped
off
before
it
evapo~ates.
h
the
solvent
is
allowed
to
evaporate,
it
will
redeposit
the
soils
and
paint
that
were
will
redeposit
dissolved
soil
and
gn’me
upon
being
canied.
Any
scoun~ng
required
should
be
done at
this
evaporation,
point.
Scouring
with
nylon
pads
or
aluminum
wool
may
be
CAUTION
done
dry
or
wet
with
one
of
the
wipe
solvents
listed
above.
Wipe
solvents
are
generally
flammable
and
AAer
the
old
paint,
grime,
etc.
has
been
loosened
and
toxic
and
should
not
be
used
without
adequate
removed,
the
scoured area
should
be
wiped
with
a
tack
ventilation
and
fire
precautions.
rag,
and
again
cleaned
with
fresh
wipe
solverd
The
part
should
now
be
ready
for
priming
and
painting.
C.
Apply
zinc
chromate
pn’mer
to
cleaned area
by
(b)
On
steel
Remove
all
grease,
gn’me,
loose
spray
or
brush.
Area
needs
to
be
painted
within
24
paint,
eic:by
wiping
with
a
wipe
solvent
and
rags.
Do
not
hours
of zinc
chromate
primer
coat.
allow
the
wipe
solvent
to
evaporate.
Wpe
it
dryl
Steel
parts
may
be
cleaned
to
bare
metal
by
sanding
with
20-0093
PAINTING
emery
cloth
or
steel
wool.
If the
parts
are
removable,
they
The
exterior
is
painted
with
urethane
enamel.
When
can
be
cleaned
by
sandblasting.
Regardless
of
the
exposed
to
humid
salt
air
or
to
an
atmosphere
having
scouring
method,
allparts
should
be
wiped
with
a
tack
rag
corrosive
fallout,
the
aircraft
should
be
hangared
when
and
cleaned
with
fresh
wipe
solvent.
The
part
should
now
be
ready
for
pn’ming
and
painting.
not
in use.
C.
Priming
and
Painting.
1.
Paint
Repairs.
(1)
On
aluminum
Cleaned
and
dried
surfaces
to
A.
Materials.
be
painted
should
be
coated
with
a
wash
primer
(1)
Aluminum
wool,
nylon
scoun’ng
pads,
320
grit
conforming
to
MIL-C-8514
or
M1L-P-15328.
Read
and
or
finer
emery
cloth
or
steel
wool.
follow
the
manufacturer’s
instructions
carefully.
The
wash
pn’mer
should
be
applied
to
attain
a
dry
film
(2)
Tack
rags,
thickness
of
0.3
to
0.4
mils
(8
transparent
film).
A
good
(3)
V~pe
solvents
suc~
as:
methyl
ethyl
ketone,
T-657
wash
primer
coating
is
a
must
since
the
top
coating
can
--CTurco
Products,
Inc~;
~3094
wash
thinner
--(Pratt
3
be
only
as
good
as
the
primer
coat.
As
a
general
rule
Lambert,
Inc.);
lacquerthinner
or
equivalent
sohRnts. the
wash
pn’mer
should
dry
From
.05
to
1.5
hours
but
not
more
than
2
hours
before
application
of
the
top
or
(4)
Body
putty
or
aerodynamic
filler
such
as:
Flex-Bond
--CTaylor
Art
Plastics);
Flex
--(3M
intermediate
primer
coat.
When an
intermediate
epoxy
Co.);or
Cut
polyester
body
filler
#6372
(NAPA
primer
coat
is
applied,
it
should
be
mixed
very
carefully
per
the
manufacturer’s
instructions.
h
should
be
thinned
[Martin
Senour
Paintsl).
per
manufacturer’s
instructions
and
applied
to
a
dry
film
(5)
Compatible
paints
for
the
item
(such
as
steel
thickness
of
0.8
to
1.0
MILS.
The
intermediate
primer
tubular
structure
or
e~derior
skin)
and
for
the
year
and shoukl
be
allowed
to
dry
a
minimum
of
0.5
to
1.5
hours
model
being
repainted.
(Refer
to
Mooney
Parts
depending
upon
the
application
temperature
and
Catalog).
relative
humidity.
Follow
manufacturer’s
instrctions.
The
intermediate
(6)
Thinners
which
are
compatible
with
the
paints
primer
coat
can
be
dry-scuffed
lightly
with
No.
400
to
being
used
both
for
paint
thinning
and
for
bum-down
No.
600
sandpaper
prior
to
top
coat
application
and
thinners.
give
a
higher
gloss
finish.
As
many
coats
of
paint
as
desired
may
be
applied.
A
higher
g(oss
will
be
gttained
20-00-03
OLDWILLWAYNE