Raytheon Beech Baron E55 - Page 357

Ray~hwm
Aircraft
Company
BARON
55
AND
58
SHOP
MANUAL
NOTE: Corrosion
damage
requires inspection
to determine
the
depth
of
penetration
and
the cross-sectional
area
change.
The
damaged
area
must
be
thoroughly
cleaned
and the corrosion
must
be
removed.
The
deterioration caused
by
corrosion
or
removal
of corrosion
must
not
reduce
the material thickness
of
any
component
by
more
than 10%.
Refer
to
Chart
5
for
NOSE
GEAR SHIMMY
DAMPER
WEAR
TOLERANCES
AND
INSPECTION
PROCEDURES
on
components.
For additional
information contact
the
Technical
Support
Department
of
Raytheon
Aircraft
Company,
P.O.
Box
85,
Wichita,
KS
67201.
Remove
corrosion
if
applicable
and
apply
corrosion
prevention
materials
as
necessary per
MIL-C-5541
or
cadmium
plate
per
Fed
QQ-P-416,
Type
II.
Bushings
that
check within
allowable
wear
tolerances
may
be
reused.
When evidence
of
damage
exists
to
steel
parts,
magnetic
particle
inspect
per
MIL-STD-1949.
NOTE:
Do
not
remove
paint
or
primer
from the
area
to
be
fluorescent
or
dye
penetrant
inspected
per
MII-STD-
6866.
If
the
finish absorbs
the
penetrant
so
that
bleed
out
prevents
satisfactory
inspection
or
if
a new
finish
has
not
cured
for
at
least
30
days,
contact
the Technical
Support Department
of
Raytheon
Aircraft
Company,
P.O.
Box
85,
Wichita,
KS
67201.
When
evidence
of
damage
exists
to
metal
parts
other than
steel,
fluorescent
penetrant
inspect
per
MIL-
STD-6866,
Type
I.
Replace
damaged
or
unserviceable
parts
with
new
or
serviceable
parts.
NOSE
GEAR SHlhllMY
DAMPER
ASSEMBLY
a.
Replace
the
O-rings
(20
and
21)
on
the
barrel end
(19).
Slide
the
piston
scraper
(22)
and
barrel
end
onto
piston
rod
(12)
(Ref. Figure
13).
1
b.
Replace
the
O-ring
(16)
on
the
floating
piston
(17)
and
insert the
compression
spring (18)
and the
floating
piston
into
the
piston
rod
(12).
With
a
long
6-32
screw
or
threaded
rod,
engage
the
floating piston
(17)
by
pulling
it
toward the clevis
(24)
so
that
the
retaining pin
(15)
can
be
inserted. Install the
damper
piston
(14)
on
the
piston
rod
(12)
and
insert
the
retaining pin
(15). Replace
the
O-rings
(13)
on
the
damper
piston (14).
c.
Insert
the
piston
rod
(12)
and
components
into
the
barrel
(6)
and
place
the
snap
ring (23)
into
position.
d.
Place
the
barrel
(6)
in
a
vise
with the
open
end
up
and
fill
the barrel
(6)
and
piston
rod
(12)
with
hydraulic
fluid
(13,
Consumable
Materials
Chart,
Section
2).
Work
the
piston
rod
(12)
up
and
down
until
bubbles
stop
appearing
in the
fluid,
then refill the barrel
(6)
and the
piston
rod
(12).
To
eliminate
the
possibility
of
an
air
pocket
under
the
barrel
end
(5),
ensure
that
the
barrel
(6)
is
completely
full
of
hydraulic
fluid.
Any
excess
fluid
will
be
forced
into
the
piston
rod
(1 2)
as
the barrel end
(5)
is
inserted.
e.
Replace
the
O-rings
(4)
on
the
barrel
end
(5).
Insert
the
barrel
end
(5)
and
piston
scraper
(3)
into
the barrel
(6)
and
secure
with
snap
ring
~2).
f.
Fill
the
piston
rod
(12)
with
hydraulic
fluid
(13,
Consumable
Materials
Chart,
Section
2).
Engage
the
floating
piston
(17)
with
a
6-32
long
screw
and
pull
towards the
clevis
(24).
At
the
same
time,
insert and
push
the
floating
piston
(10)
down
into
the
piston
rod
(12).
This will
cause
hydraulic
fluid
to
be
sucked
into
the
piston
rod
(12)
and
preventing
the
entry
of
air.
g.
Install
compression
spring
(9),
washer
(8)
and
secure
with
cotter
pin (1).
Release
the 6-32
rod
from the
piston
(17)
and
remove
from the
assembly.
h.
Check
the
fluid
level
in
the
shimmy
damper
by spreading
the
cotter
pin
(1)
and
inserting
a
1/16
inch diameter
wire
into the
piston
rod
(12).
Measure the distance
to
the
top
of
the
floating
piston
(10).
If the
distance
to
the
piston
rod
(10)
exceeds
2
3/16
in.,
remove
the
floating
piston
(10)
and
add
more
fluid
to
the
piston
rod
(12).
1
E22
SECTION
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