Raytheon Beech Baron E55 - Propeller

Raytheon
Aircraft
BEECH
BARON
55
AND
58
SHOP
MANUAL
PROPELLERS
The
Beech
Baron
propellers
are
of the
constant
speed
full
feathering
type.
Feathering
the
propeller
is
accomplished
by
pulling
the
propeller
control
levers
into
the full
feather
position, thereby
releasing
governor
oil
pressure,
allowing
the
counterueights
and
feather
spring
to feather
the
propeller
blades.
A
port
in the
governor
is
opened by
pulling
the
governor
control levers into
the
full feather
position
and
allows
the oil
from the
propeller
to
drain
back
into
the
engine.
Average
feathering
time
is between
three and
ten
seconds.
NOTE
The
airplane
must
be
equipped
with
like
propellers
of the
same
manufacturer.
For
unfeathering
and
starting
procedures,
refer
to
the
applicable
Pilot’s
Operating
Handbook.
REMOVING
THE
PROPELLER
(MCCAULEY)
a.
Remove
the
spinner
dome
retaining
screws
and
remove
the
spinner
dome.
If
the
airplane
is
equipped
with
the
alcohol
anti-icing
system,
remove
the
spray
nozzle
retaining
screws
and
disconnect
the
rubber
tubing
before
remov-
ing
the
spinner
dome
retaining
screws.
Remove
the
spinner
dome
support,
and
shims
if
installed,
from
the
mounting
post.
b.
Using
a
3/4-inch
wrench,
remove
the six
propeller
nuts.
c.
Remove
the
propeller
and
O-ring.
NOTE
Use
clean
rags
to
plug
the
center
of
the
engine
crankshaft and
propeller
hub
to
prevent
foreign
material from
contaminating
the
engine
or
propeller.
INSTALLING
THE
PROPELLER
(MCCAULEY)
a.
Make
sure
the
propeller
and
engine flanges
are
clean.
b.
Apply
a
light
coat
of
engine
oil
to
the
O-ring
and install
the
O-ring
in
the circular
groove
of
the
propeller
hub.
c.
Apply
another
light
coat
of
engine
oil
to
the
O-ring
and
to
the inner
surfaces
of the
propeller
hub.
d.
Apply
a
liberal
coat
of
grease
(A-1637-16,
supplied
with
a new
propeller,
or
MIL-T-83483)
to
the
threads
of
the
six
mounting
studs and
to
the
threads
and faces
of
the six
mounting
nuts.
NOTE
It is
possible
to
install
the
propeller
in
either of
two
positions
relative to
the
crankshaft.
The
correct
position
is
with
one
blade
aligned
directly
over
the
T/C
mark
on
the crankshaft
flange.
e.
Position
the
propeller
on
the
engine
with
one
blade
aligned directly
over
the
nC
mark
on
the
crankshaft
flange.
Install
the
six
mounting
nuts,
then
apply
a
wet
torque
of
540 600
inch-pounds
to
the
mounting
nuts.
Wipe
off
any
excess
grease
after
torquing.
f.
Prepare
the
spinner
dome
for installation
by
cleaning
the
surface,
inspecting
for
cracks,
etc.
Install
two
0.016
inch
P/N
83281-1
shims,
one
0.032
inch
P/N
83281-2
shim and
the
spinner
support
on
the
mounting
post.
Lightly
press
the
spinner
against
the
support
and hold
snug
to
check
the
alignment
of
the
spinner
attach
holes
with
the
spin-
ner
bulkhead.
Misalignment
of 3/64
inch is
permissible.
E16
7-1