Raytheon Beech Baron E55 - Page 329

RayYheon
Aircraft
Company
BARON
55
AND 58
SHOP MANUAL
MAIN
GEAR ASSEMBLY
NOTE:
Prior
to
assembly,
immerse
all
internal
parts
(except
felt
pad
(26))
in
hydraulic
fluid
(13,
Consumable
Materials
Chart,
Section
2)
(Ref.
Figure
9).
a.
Install
the
O-ring
(17)
and
retainer
rings
in the
upper
bearing
(16)
of
the
cylinder
assembly
(9).
Two dowel
rods
may
be
used
to
work
O-ring
and
retainers
into
position
(Ref. Figure
9
and
10).
b.
Soak
the felt
pad
(26)
in
SAE
10W30
oil and install
in
the
cylinder
assembly
(9)
between
the
upper
and
lower
bearings
(16
and
19).
c.
Slide
the
scraper
seal
(27)
over
the
piston
(28)
and
insert the
lower
shock
assembly
(35)
into
the
cylinder
assembly
(9).
Work the
scraper
seal
(27)
into
the
lower end
of
the
cylinder
assembly
(9)
until
seated.
d.
Install
upper
torque
knee
(23)
to
the
cylinder
assembly
(9)
and
lower
torque
knee
(34)
to
the
lower
shock
assembly
(35) using
torque
knee
pins
(21
and
31),
retaining
pins
and
cotter
pins.
Install
stop
(22)
to
the
upper
torque
knee
pin
(21).
Insert the
center
torque
knee
bushing
(24)
and
connect
the
torque
knees
(23
and
34)
using
bolt,
washers
and
nut
(32).
e.
Lubricate
bearings
at
grease
fittings
with
grease
(8,
Consumable
Materials
Chart,
Section
2).
f.
Install
new
bushings
(12)
into brace
(11).
Install brace
(11)
onto
the
cylinder assembly
(9)
with
bolt,
connector
and
nut
(10).
Install
forward and
aft columns
(15)to
the brace
(1
1)
and
cylinder
assembly (9) using
main
landing
gear
brace
bolts
(14).
g.
Raise
and block lower
shock
assembly
(35)
1/4
in. from the
fully compressed
position
and
fill
cylinder
assembly
I
(9)
with
hydraulic
fluid
(13,
Consumable
Materials
Chart,
Section
2)
until the
top
of
piston
(28)
is covered
(approximately
2
pints
of
hydraulic
fluid).
h.
Install
O-ring (4),
valve
core
(2)
and
valve
assembly
(3)
into
orifice
tube
(6).
Assemble the
O-ring
(7)
and
piston
ring
(8)
to
orifice
tube and install
into
cylinder
assembly
(9).
Slowly
extend lower shock
assembly
(35) allowing
the
suction
to
pull
orifice
tube
down
into
the
cylinder
assembly
(9),
then install
retainer
ring
(5).
WARNING:
As with
all
operations
involving
equipment
under
high
pressure,
exercise
caution
when
performing
the leak
test;
avoid
the
areas
directly
above and below
the
strut.
i.
Inflate
the
cylinder
assembly
(9)
to
approximately
100
psi using dry
air
or
nitrogen.
Coat
the
top
of the
orifice
tube
(6)
and air
valve
assembly
(3)
with
soapsuds
and check
for
air leaks.
j.
Release the
air
pressure;
clean
the
soapsuds
offthe
top
of the orifice tube
(6)
and air valve
assembly
(3)
with
fresh
water
and
wipe
dry.
k.
Install
air
valve
cap
(1)
to
air
valve
assembly.
i.
Install all
hydraulic
plumbing,
safety
switch
components
and
clamps.
m.
Install main
wheel and
brake
assembly.
Refer
to
Section
5,
INSTALLING
THE
WHEEL AND
BRAKE
ASSEMBLY.
n.
Install
main
landing
gear
to
the
airplane.
Refer
to
Section
5,
MAIN
LANDING
GEAR
INSTALLATION.
o.
Service
the main
landing
gear.
Refer
to
Section
2,
SHOCK
STRUTS.
E22
SECTION
5
35