Cessna 182 1978 - Reassembly;Installation of Wheel Brake; Checking Brake Lining Wear; Installation of Brake Lining; Bleeding Brake System

MODEL
182 &T182 SERIES
SERVICE MANUAL
c.
Check brake lining for deterioration
and maxi-
back plate
and pressure plate in the
same manner.
mum permissible wear. Refer to applicable para-
graph for maximum
wear limit.)
NOTE
d. Inspect
brake cylinder bore for
scoring. A scored
cylinder
will leak or cause rapid O-ring wear. Install
A rivet setting kit. Part
No. 199-1, is
a new brake cylinder if the
bore is scored.
available from Cessna Parts Distribution
e. If the anchor
bolts on the brake assembly are
(CPD 2). This kit consists of an anvil
and
nicked or gouged, they shall
be sanded smooth to
punch
prevent binding with the pressure plate or torque
plate.
When new anchor bolts are to be installed,
d. Clamp the flat side of the anvil
in a vise.
press out old
bolts and install new bolts
with a soft
e. Align new lining
on back plate and place
brake
mallet.
rivet
in hole with rivet head in
the lining. Place the
f. Inspect brake
discs. Sand smooth small nicks
head against the anvil.
and scratches. If excessively
warped or scored,
the
f. Center rivet setting punch
on lips of rivet. While
brake
discs should be replaced with new parts. The
holding back plate down firmly against
lining, hit
chart
in figure 5-18 lists wheel assemblies and cor-
punch with hammer to set rivet. Repeat
blows on
responding brake discs.
The original thickness
and punch
until lining is firmly
against back plate.
the minimum
allowable thickness
of each disc are
g. Realign the
lining on the back plate
and install
shown. Replace
the disc if the thickness
is below the
and set rivets
in the remaining holes.
allowable
minimum dimension.
h. Install
a new lining on pressure
plate in the
same
manner.
5-96. REASSEMBLY
OF WHEEL BRAKE.
(See
i. Position pressure
plate on anchor bolts and
place
figure 5-4.)
cylinder in position
so that anchor bolts slide
into the
torque plate.
NOTE
j. Install back plate with
bolts and washers.
Lubricate
parts with clean
hydraulic fluid
5-100.
BLEEDING BRAKE
SYSTEM.
during
brake
assembly.
NOTE
a. Use
figure
5-4
as a guide
during
reassembly.
Bleeding
with a clean hydraulic
pressure
5-97. INSTALLATION
OF WHEEL
BRAKE.
source
connected to the wheel
cylinder is
a. Place brake
assembly in position with pressure
recommended.
plate
in place.
a. Remove brake
master cylinder filler
plug and
NOTE
screw flexible hose
with appropriate fitting
into the
filler
hole at the
top of the
brake master
cylinder.
If torque plate
was removed, install
as the
b. Immerse opposite
end of flexible
hose into a
con-
axle is installed,
or install on axle.
If the
tainer
with enough
hydraulic fluid
to cover end of
the
brake disc was removed, install
as wheel
hose.
is assembled.
c. Connect a clean
hydraulic pressure source,
such
as a hydraulic
hand pump or
Hydro-Fill unit to the
5-98.
CHECKING BRAKE
LINING WEAR.
New
bleeder valve in the
wheel cylinder.
brake
lining should be installed
when the existing lin-
d. As fluid
is pumped into the system,
observe the
ing has worn
to a thickness of 3/32-inch.
A 3/32-inch
immersed end of the hose
at the master brake cylinder
thick strip
of material held
adjacent to each
lining can
for evidence
of air bubbles
being forced from
the brake
be used to determine amount
of wear. The shank
end system.
When bubbling has ceased,
remove bleeder
of a drill bit of the
correct size can also be used
to deter-
source from wheel cylinder
and tighten the bleeder
mine
wear of brake
linings
valve.
5-99.
INSTALLATION OF
BRAKE LINING. See
5-101 BRAKE
LINING BURN-IN.
The brake pads
figure 5-4.)
are equipped
with either
a non-asbestos
organic
lining
a. Remove bolts
securing back plate,
and remove
or an iron based
metallic lining. These
materials must
back plate.
be properly conditioned
(glazed) in order
to provide
b. Pull
brake cylinder
out of torque plate
and slide
maximum
performance
and service life.
This is accom-
pressure
plate off anchor
bolts.
plished by a
brake burn-in
c. Place back
plate on a
table with lining
side down
a. Non-asbestos
organic
lining.
flat. Center
a 9/64-inch (or slightly
smaller) punch in
1. Taxi
airplane for 1500 feet with
engine at
the rolled
nvet, and hit
the punch sharply
with a ham-
1700 RPM applying
brake pedal force
as needed
mer Punch
out all rivets securing
the linings to the
to
develop a 5 to 9 knots
taxi speed.
Revision 3 5-35