Cessna T188C - Page 107

MODEL
188
& T188
SERIES
SERVICE
MANUAL
wheel
install
center
spacer
in
place.
Place
inner
to structure
in
fuselage.
wheel
hall
in position
and
apply
a light
force
to bring
f.
Replace
hose
and
rubber
bushings
if
deteriorated,
wheel
halves
together.
Assure that
tube is
not
inspect
and replace
springs
and parts
as required.
pinched.
Maintaining
the light
force, assemble
a
g.
Reverse
preceding
steps to
install tail
gear.
washer
and
nut
on one
thru-bolt
and
tighten
snugly.
Assemble remaining
washers
and nuts on thru-bolts
5-21. REMOVAL
OF TAIL WHEEL
CASTING.
(Be-
and torque evenly
to value marked on wheel.
ginning with 18801935.)
(See figure 5-6.)
the
CAUTION
a.
Remove tail
wheel in accordance
with
procedures
5-16. WHEEL
ALIGNMENT.
(See figure
5-5.)
.
3
5-17.
WHEEL
BALANCING.
Since
uneven
tire
wear
is usually
the
cause
of wheel
unbalance,
replacing
the tire will probably correct this condition. Tire CAUTION
and
tube manufacturing
tolerances
permit a
specified
4
amount
of static
unbalance. The
lightweight point
of
Do NOT place
heating tape
the tire is marked
with a red
dot on the tire
sidewall
in direct contact
with tubular
and
the heavyweight
point of
the tube Is marked
with
tall
gear spring.
a contrasting
color
line (usually
near the
valve
stem).
When installing a new tire, place these marks adja- 1. Tailgear Spring 3. Electric Heating Tape
cent to each other.
If a wheel becomes unbalanced
2. Casting
4. Drain Hole
during
service
it
may be
statically
rebalanced.
Wheel
balancing
equipment
is
available
from
the Cessna
Service Parts Center.
Figure
5-6.
Tail
wheel
Bracket
Removal
5-18.
TAIL GEAR.
(See figure 5-7.)
NOTE
5-19.
DESCRIPTION.
The-tail
gear is
comprised
of
a
steerable
tail
wheel,
mounted
on
a tubular
spring
Tail
wheel
casting
(2)
is
bonded
to
tubular
strut.
The
strut
is
mounted
in rubber
bushings
to
tail gear
spring
(1).
The
bond
is too
strong
cushion
vibration.
The tail
wheel
is steerable
in
re-
to
allow
casting
to be
removed
without
first
sponse
to
rudder
pedal
action,
up
to a
maximum
de-
weakening
the bond
strength.
The
only
me-
flection,
after
which
it
becomes
free-swiveling.
thods
of
weakening
the
bond
are
with heat
of
cryogenic
cold;
heat being
the
most
practical.
5-20.
REMOVAL
AND
INSTALLATION
OF TAIL
A
temperature
of
approximately
500
F is
GEAR.
sufficient
to
weaken
the
bond
so
the casting
a. Place
suitable
padded
stand
under
tailcone
or use
can
be
removed.
This
is
still
a low
enough
a jack
under
jack
point,
if
installed.
to
raise
tail gear
temperature
to prevent
damage
to
the tubu-
off
ground.
lar tall
gear
spring,
but
will
age the
alumi-
b. Disconnect
steering
cables
from
tail
gear.
num
casting.
Therefore,
the
casting
will
c.
Remove
stinger for
access.
have to
be replaced.
Casting
should
be re-
d.
Remove
cotter
pins
and clevis
pins
securing
tube
moved
from
strut
using
electrical
heating
to spring
fitting.
Tap
tube
out through
spring
fitting,
tape
(3).
Heating
tape,
P/N
135-459,
can
removing
rubber
bushings.
be obtained
from
the Cessna
Supply
Division.
e.
Pull
tall
gear
aft,
out of
rubber
hose,
cemented
Revision
1
5-25