Cessna T188C - Page 105

MODEL
188
&
T188
SERIES
SERVICE
MANUAL
5-10.
REMOVAL
AND
INSTALLATION
OF
MAIN
a. Deflate
tire
and
break
loose
tire
beads.
WHEEL
AND
AXLE.
(See
figure
5-1.)
b.
Remove
thru-bolts
and
separate
wheel
halves,
a.
Disconnect
brake
hose
at wheel
cylinder
and
removing
tire,
tube,
and
brake
disc,
and
the
center
drain
hydraulic
fluid.
Protect
fittings
from
dirt.
spacer
on
the
optional
wheel.
b.
Remove
wheel
in
accordance
with
paragraph
c.
Remove
grease
seals
and
bearing
cones.
5-11.
NOTE
NOTE
The
bearing
cups
are a
press
fit in the
wheel
Note
the
number
and position
of any
wheel
halves
and
should
not
be
removed
unless
re-
alignment
shims
next
to strut.
Mark
these
placement
is
necessary.
To
remove
the bear-
shims
or
tape
them
together
so
they
may
be
ing
cups,
heat
the
wheel
half
in boiling
water
reinstalled
in
exactly
the
same
position
to
for
15
minutes.
Using
an
arbor
press,
if
ensure
that
wheel
alignment
is not
disturbed.
available,
press
out
the
bearing
cup
and
press
in the
new
one while
the
wheel
is
still hot.
c.
Remove
bolts
securing
axle
and
brake
torque
plate
to strut
and
remove
axle
and
plate.
5-13.
CLEANING
AND
INSPECTION
OF
MAIN
d.
Reverse
the
preceding
steps
to
install
the
wheel
WHEEL.
and axle,
making
sure
that
wheel
alignment
shims
a. Clean
all metal
parts
and grease
seal
felts
in
are
installed
correctly.
Refer
to Figure
5-1
for
solvent
and
dry
thoroughly.
torque
requirements
when
8. 50x10
wheel
is installed.
b. Inspect
wheel
halves
for
cracks.
Cracked
wheel
Refer
to
paragraph
5-15
for wheel
installation.
halves
must
be
replaced.
Sand
out
nicks,
gouges,
e.
Remove
plugs
or
caps
from
brake
hose
and
con-
and
corroded
areas.
Where
the
protective
coating
nect.
Bleed
the
brake
system.
has
been
removed,
the
area
should
be cleaned,
primed,
and
repainted.
5-11.
REMOVAL
OF
MAIN
WHEEL.
c.
Inspect
brakes
in accordance
with
procedures
outlined
in
paragraph
5-45.
NOTE
d.
Bearing
cups
and
cones
must
be
replaced
if
damaged
or discolored.
After
cleaning,
repack
It
is not
necessary
to
remove
the
wheel
to
bearing
cones
before
installation.
reline
brakes
or remove
brake
parts
(other
than
the
brake
disc
or
torque
plate).
5-14.
REASSEMBLY
OF
MAIN
WHEEL.
a.
Insert
thru-bolts
through
brake
disc
and
position
a.
Jack
wheel,
using
universal
jack
point.
in inner
wheel
half,
using
bolts
to
guide
the
disc.
b.
Remove
outer
dust
cover
or
hub
cap.
Assure
that
disc
is
bottomed
in wheel
half.
c.
Remove cotter
pin
and axle nut.
d.
Remove
bolts
and
washers
securing
back
plate.
NOTE
e.
Pull wheel
from
axle.
On
optional
wheel,
re-
move
bearing
cone
as
wheel
is
removed.
Assemble
tire
and
wheel
halves
in
position
marked
during disassembly.
If a new tire
5-12.
DISASSEMBLY
OF
MAIN
WHEEL.
is being
installed,
place
tube
in tire
with
balance
mark
on
tube
at red
dot
on tire.
NOTE
Refer
to
paragraph
5-17
for
wheel
balanc-
ing.
If wheels
are not
out of
balance,
mark
wheel
halves
and tire
before
disassembly.
b.
Position
tire
and
tube in
outboard
wheel
half
with
inflation
valve
extending
through
hole.
On
optional
WARNING
Injury
can
result
from
attempting
to separate
wheel
halves
with
the tire
inflated.
Avoid
damaging
wheel
flanges
when
breaking
tire
beads loose.
SHOP
NOTES:
5-23