Mooney M20K - Propeller Installation; Propeller Assembly; Minor Propeller Blade Repair

SERVICE
AND
MAINTENANCE
MANUAL
M20K
MOONN
AIRCRAFT
CORPORATION
NOTE
NOTE
Nuts
(8)
will
have
to
be
backed
off
evenly
so
The
guide
pins
in the
propeller
hub
must
be
that
the
propeller
may
be
pulled
forward
aligned
with
respective
holes
in the
crankshaft
(approximately
114
inch
at
a
time until
all
nuts
flange.
are
disengaged
from
the
propeller
studs.
As
the
propeller
is
separated
from the
engine
5.
Tighten
nuts
(8)
evenly
and
work
propeller
aft
on
crankshaft,
oil
will
drain
from
the
propeller
and
crankshaft
flange.
Tighten
bolts
to
5565 ft.
pounds
on
engine
crankshaft
cavities.
McCauley
propeller,
60-70
R
pounds
on
Hartzell
propeller.
B.
Pull
propeller
from
engine
crankshaff
(9).
Use
6.
Install
spinner
dome
making
sure
fiber
washers
clean
rags
to
cover
cavity
in
crankshaft and
hub.
are
installed
under
all
screw
heads
(1).
C.
If
necessary
to
remove
the
aft
spinner
bulkhead
(2)
(Figure
61-1),
the
spinner
dome
(5)
must
be
NOTE
removed,
refer
to
61-00-10
(1).
Remove
bolts,
washers
The
tefion
tape
(12)
on
hub
(6)
should
be
and
nuts
(10)
which
attach
bulkhead
to
propeller
hub
checked
for
smoothness
of
tape
layers
and
flange.
Remove
aft
bulkhead
from
propeller
flange.
that
inner
bulkheads
(7)
fits
snug
as
spinner
dome is
being
installed.
61-00-20
-PROPELLER
INSTALLATION
i.
If
aft
spinner
bulkhead
was
removed,
re-install,
7.
Conduct
operational
and
leak check
on
propeller
using
bolts,
nuts
and
washers
in
the
reverse
order
of
i"stallation
prior
to
flight.
removal.
61-10-00
PROPELLER
ASSEMBLY
2.
Clean
propeller
hub
cavity
and
mating
surfaces
of
No
extemal
lubrication
is
required
on
the
M20K
propeller
hub,
propellers.
3.
Lightly
lubricate
a new
O-Ring (11), (Figure
61-1),
Preffight
inspection
should
be
accomplished
prior
to
and the
crankshaft
pilot
with
cleanengineoil
and install
each
flight
to
determine:
if
blades
have been
damaged,
O-Ring
in the
propeller
hub.
a
any
abnormal
looseness
is
evident
between
hub and
blades
or
if
there
is
any
evidence
of
oil
leakage.
CAUTION
Remove
all
rags
or
plugs
placed
in crankshaft
61-10-10
MINOR
PROPELLER
BLADE REPAIR
or
hub
~uring
propeller
removal.
1.
Minor
nicks,
dents
and
gouges may
be
dressed
4.
Align
propeller
mounting
studs
with
proper
holes
out
by
approved
personnel.
Blend
any
nicks
or
gouges
in
engine
crankshaft
flange
and slide
propeller
carefully
into
the
leading
edge
with
smooth
curves
or
generous
over
crankshaft
pilot
until
nuts
(8)
can
be
started
(Figure
61-2).
Repaint
area
to
reduce
propeller
studs.
~s,,
sr~-9
DRESSED
A-A
A
MINOR
PROPELLER
BLADE
REPAIR
FIGURE
61 2
61-00-20
OLDWILLWAYNE