Propeller Accumulator; Induction Air Filter; Roton Locks - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAFT
BARON 58P AND 58TC
MA INTENANCE MA N UAL
PROPELLER
SERVICING POINTS
NOTE
(HARTZELL)
Increase the
pressure an
addi-
NOTE
tional 2
psi
for
every
10 degrees
increase in
temperature;
similar-
It
is
recommended that
airplanes ly, for
every
10 degrees drop in
not
equipped with the
feather-
temperature,
reduce the
pressure
assist
spring
assembly be modi- by 2
psi/
fled
to
add the spring backup
kit
in accordance
with the Hartzell
e.
On
airplane serials
T3-46, TJ-55,
Propeller
Overhaul Instruction T3-83, TJ-85
through ~3-436, TK-1 through
Handbook, Manual
1170
or
subse- TK-150
except
TK-147 with
quent.
This
kit should
be
PHC-J3YF-2UF/FC7663DR propeller
assem-
installed
at
the
earliest
conven-
blies, charge
the
air
dome
as
follows:
lent time of
the
owner,
but
no
later than the
next
1400
hour
700F
to
1000F
41 +2
psi
overhaul.
Propellers
not
having
400F
to
700F 38 +2
psi
the
feather-assi
st
spring
are
OOF
to
400F 36 f2
psi
PHC-J 3Y F-2
F/ FC8468-6R
and
-300F
to
OOF 33 +2
psi
PHC-J3YF-2F/FC7663DR.
a.
Remove the
access cap
from the PROPELLER ACCUMULATOR
propeller spinner
to
expose
the filler
valve.
The
propeller
accumulators
are
located
on
the
lower
rear
section of each
engine.
The
b. On airplane
serials T3-3
through
accumulator should be
inspected
every
100
TJ-443,
except
TJ436,
with hours and
charged with dry
air
or
nitrogen
PHC-J3YF/FC8468-6R propeller assemblies, 100 +5
psi at
700F. Increase the pressure
I
charge propeller air
dome cylinder
ps~
for
every
10 degrees
with dry
air
or
nitrogen to
100 +2
psi
at
of increase in
temperature,
similarly for
700F.
every
10 degrees of
drop
~n
temperature,
reduce the
pressure
by
2
psi.
If
a
unit
NOTE willnot hold 70% of its
normal charge
from
one
inspection to
the
next,
it
should
Increase the
pressure an
addi- be replaced.
tional 2
psi
for
every
10 degrees
increase in
temperature;
similar-
INDUCTION AIR FILTER
ly, for
every
10 degrees drop
in
temperature,
reduce the
pressure
The induction
air
fi Iter should be
by 2 psi.
inspected for foreign
matter at
least
once
during each 50-hour
operating period and
c.
On airplane
serials TJ-3 through cleaned
as
noted
by
the
manufacturer's
TJ-443,
except
T3-436 with
instructions
on
the filter. Replace the
PHC-J3YF-2UF/FC8468-6R
propeller
assem-
induction air
filters
every
500 hours
blies, charge the air dome
as
follows:
one year,
whichever
occurs
first.
700F
to
1000F 66 ~2
psi ROTON LOCKS
400F
to
700F 62
+2psi (FCsure 201)
OOF
to
400F 58 +2 psi
-300F
to
OOF 53 +2
psi
Usually, Roton locks will
not
need servic-
ing. If there is
a
grinding
and binding in
the lock
as
the
seat
reef i
nes or
the
d. On
airplane serials TJ-46, TJ-55,
return
action becomes
jer ky,
a
little
TJ-83, TJ-85 through T3-443
except
T3-436,
grease
properly applied
as
follows should
TK-1 through
TK-1~53
except
TK-147 with
improve the operation.
PHC-J3YF-2F/FC7663DR propeller
assem-
blies,
fill
to
80 +2
psi
at700F.
12-20-00
Page
204
May
22/87
A22