Raytheon Beech Baron E55 - Page 297

Raytheon
Aircraft
Company
BARON
55
AND 58
SHOP
MANUAL
BLEEDING
THE BRAKE
SYSTEM
Use
only hydraulic
fluid
(13,
Consumable
Materials
Chart,
Section
2)
in the
brake lines and insure that
no
dirt
or
foreign
matter
is
allowed
to
get
in
the
brake
system
(Ref.
Figure
1).
Dirt
can
get
under
seals
and
cause
leaks
or
clog
the
compensating
valve and
cause
the
brakes
to
lock.
Use
either
gravity
flow
or
pressure
bleeding
to
bleed
brakes.
Using
either
method,
the
parking
brake
lever
and
toe
brake
pedals
must both
be
fully
released
to
open
the
compensating
port
in
the brake
master
cylinders.
GRA VITY
BLEEDING
The
reservoir
must
be
kept
full
during
bleeding.
The
brake
pedals
should be
operated
slowly
and
smoothly
to
eliminate
trapped
air
in
the
master
cylinders.
When
no
more
air
bubbles
appear
in
the
fluid
drained
from
the
bleeder
plug,
close the bleeder
valve.
PRESSURE
BLEEDING
Connect
the
hoses from
a
pressure
pot
to
the
bleeder
fitting
on
the brake and
bleed
the
system
from
the
wheel
cylinder
up.
Disconnect the fluid
supply
line
at
the
reservoir,
attach
a
hose
to
it
and
put
the
other
end
of
the
hose
in
a
large,
clean container.
Using
not
more
than 30
psi
bleed the
system
until all air bubbles
are
gone
from the
draining
fluid.
Pumping
the
brakes
is
not
necessary.
BLEEDING DUAL
BRAKE
SYSTEM
In
airplanes
having
the
optional
dual brake
system,
the
copilot’s
brake
system
is
bled
by closing
the
valve
on
the
pressure
pot
and
pumping
the
copilot’s
brake
pedal
to
change
the shuttle
valve
position.
This
causes
hydraulic
fluid
to
be
routed
through
the
copilot’s
system
and this
system
should be bled
as was
the
pilot’s
system.
After the
pilot’s
and
copilot’s
brakes
have been
bled,
close the
bleeder valve
and
repeat
for
the other
wheel.
REMOVING THE
WHEEL AND
BRAKE
ASSEMBLY
(GOODYEAR)
(TC-
I
THRU
TC-370,
TC-372 THRU
TC-662,
TC-664
THRU
TC-978,
TC-980 THRU
TC-983,
TC-985 THRU
TC-998
AND TC-
1002)
a.
Placeairplaneon
ajack.
b. Remove
the
cotter
pin,
wheel
retaining
nut,
spacers,
bearings,
wheel and release
disc
clips.
Support
the
brake
disc
to
prevent
it
from
dropping
and
striking
the axle
when the
wheel is removed.
c.
Disconnect the brake
hydraulic
line,
remove
the
six brake
housing
attaching
bolts
and
remove
the brake
housing.
INSTALLING
THE
WHEEL
AND
BRAKE
ASSEMBLY
(GOODYEAR) (TC-1
THRU
TC-3701
TC-372
THRU
TC-662,
TC-664
THRU
TC-978,
TC-980
THRU
TC-983,
TC-985
THRU
TC-998
AND
TC-
1
002)
a.
Place
the
brake
housing
on
the
axle and
position
the
housing
on
the axle
attaching
hole
from
the
perpendicular
so
that
the
brake
cylinders
slant
down and
aft from
the
strut center
line.
b.
Install the
brake
housing
attaching
bolts
and
connect
the
brake
hydraulic
line
to
the
brake
assembly.
c.
Clean
the
wheel
bearings
with solvent
(15,
Consumable
Materials
Chart,
Section
2)
and
repack
with
grease
(9,
Consumable Materials
Chart,
Section
2).
E22
SECTION
5
JR~Page
3