Raytheon Beech Baron E55 - Page 355

Ray~heon
AiKraft
company
BARON
55
AND
58
SHOP
MANUAL
NOSE
GEAR
SHIMMY
DAMPER
SERVICING
Service
the
shimmy
damper.
Refer
to
Section
2,
SHIMMY
DAMPER.
NOSE
GEAR SHIMMY DAMPER REMOVAL
a.
Remove
the
nut,
washers,
bushing
and
bolt
which
attach
the
shimmy
damper
to
the
gear
brace.
b.
Remove the
nut,
washers,
bushing,
bolt
and
remove
the
shimmy
damper
from the
barrel/strut.
NOSE
GEAR SHIMMY DAMPER
INSTALLA
TION
a.
Install
the
bushing,
washers,
nut
and
bolt
attaching
the
shimmy
damper
to
the
barrel/strut.
b.
Install the
bushing,
washers,
nut
and
bolt
attaching
the
shimmy
damper
to
the
gear
brace,
for
alignment
purposes,
attach
a
100951X031YN
washer
between
the
damper
and the
lug
on
the
brace
and
a
I
100951X031YM
washer under
the
nut.
c.
Swivel
the
nose
wheel
to
check
the
turning
radius of
the
strut
and
for
freedom
of
movement
without
binding
or
rough
spots.
Adjust
the
nose
gear
steering
travel
adjustment
bolts
to
the
stop
shimmy
damper
piston
1/32
in,
to
114
in,
from maximum
travel
in
both
directions.
NOSE GEAR SHIMMY DAMPER OVERHAUL
NOTE:
Refer
to
the
OVERHAUL
AND
REPLACEMENT
SCHEDULE
in
Section 15
for
time
limits
and
maintenance
checks
of
the
nose
gear
shimmy
damper.
NOSE
GEAR
SHIMMY DAMPER
DISASSEMBLY
1
a.
Remove
cotter
pin
(1),
washer
(8)
and
compression
spring
(9) by
holding
the
washer
(8)
down with
a
small
rod
or
screw
driver
so
that the
parts
will
not
spring
out
when
the
cotter
pin
(1)
is
removed
(Ref.
Figure
13).
b.
Remove
the
floating piston (10) by engaging
it
with
a
long
6-32
screw
or
threaded rod.
Remove
O-ring
(11)
from
the
floating
piston (10).
c.
Remove the
snap
ring
(2)
and
piston
scraper
(3).
Force
the barrel
end
(5)
out
of
the
barrel
(6)
by
working
the
piston
rod
(12)
back and forth. Remove
O-rings (4)
from
the barrel
end
(5).
d.
Remove all
remaining hydraulic
fluid
by
inverting shimmy
damper
and
pumping
the
piston
rod
(12).
e.
Remove
the
snap
ring
(23)
and
slide
the
piston
rod
(12)
with
the
remaining parts
out
of
the
barrel
(6).
f.
insert
a
long
6-32
screw
or
threaded rod into the
hole
at
the
clevis
(24)
end
of
the
piston
rod
(12)
and
engage
the forward
floating piston
(17).
Pull
floating
piston (17)
toward clevis
(24)
so
that
the
piston
retaining
pin (15)
can
be driven
out.
1
g.
Remove
the
piston
retaining
pin (15)
and
push
the
floating
piston
(17)
out
the
open
end
of the
piston
rod
(12)
and
remove
O-ring
(16).
h.
Remove the
remaining compression
spring
(18)
and slide the
damper
piston
(14)
off the
piston
rod
(12).
Remove
O-rings
(13)
from
the
7
damper
piston
(14).
i. Remove
remaining
barrel
end
(19)
and
piston
scraper
(22)
from the
piston
rod
(12).
Remove
O-rings
(20
and
21)from
the
barrel end
(19).
E22
SECTION 5
Jun
30/04Page
61