Cessna 177 SERIES Service Manual

5-11D.
MAIN
WHEEL
DISASSEMBLY.
(Ic
Cauley
d.
Inspect
thru-bolts
(24)
and
nuts
(10)
for cracks
Two-Piece
Wheel.)
(Refer
to figure
5-4A.)
in threads
or cracks
in
radius
under
bolt
head.
a.
Completely
deflate
tire
and
tube
and
break
loose
e. Replace
cracked
or
damaged
wheel
half
(6).
tire beads.
Extreme
care
must be
exercised
to pre-
f.
Replace
damaged
retainer
rings (1)
and seals
vent tire
tool damage
when
removing
tire
from
wheel
(2),
(3) and
(4).
halves
(6).
g. Replace
worn
or damaged
bearing
cups
(27) and
cones (5).
[WAR
N I NG
X
h. Replace
any worn or
cracked thru-bolts
(24) or
nuts
(10).
Serious
injury
can result
from
attempting
to
i. Remove
any corrosion
or small
nicks.
separate
wheel halves
with
tire
and cube
in-
j.
Repair
reworked
areas
of wheel
by
cleaning
flated.
thoroughly,
then applying
one
coat
of clear
lacquer
paint.
b. Remove
nuts
(10) and
washers
(9).
k.
Pack
bearings
with grease
specified
in Section
2
c.
Remove
thru-bolts
(24) and
washers
(25).
of this
manual.
d. Separate
and
remove
wheel halves
(6) from
tire
5-11F.
MAIN
WHEEL
REASSEMBLY.
(Mc Cauley
and
cube.
Two-Piece
Wheel.)
(Refer to
figure 5-4A.)
e.
Remove retaining
rings
(1), grease
seal retain-
a. Assemble
bearing cone
(5), grease
seal retainer
ers (2)
grease
seal felts
(3),
grease
seal retainers
(4),
grease
seal
felt (3),
grease
seal retainer
(2)
and
(4)
and bearing
cones
(5)
from
both wheel
halves
(6).
retaining
ring
(1) into
each
wheel
half (6).
b.
Insert
tube
in
tire,
aligning
index
marks
on tire
NOTE
and tube.
c. Place
wheel
half
(6)
into tire
and
tube (side
Bearing cups (races)
(27) are a press
fit in opposite
valve stem), aligning
base of valve stem
wheel halves
(6), and should not be
removed
in valve slot. With washer
(25) under head of
thru-
unless a new part is to be installed.
To re- bolt (24), insert bolt through
wheel half (6).
move
bearing cups, heat
wheel half in boiling
d. Place wheel
half (6) into other
side of tire and
water
for 30 minutes,
or in an
oven, not to
tube,
aligning
valve stem in
valve slot.
exceed 121°C (250°F). Using an arbor press. e. Insert washers (9) and nuts (10) on thru-bolts
if available,
press out bearing cup and press
(24), and pre-torque to 10-15 lb.
in.
in
a new bearing
cup
while wheel
half
is still
hot.
CAUTION
5-11E.
MAIN WHEEL
INSPECTION
AND REPAIR.
Uneven
or improper
torque
of the
nuts
0
(McCauley
Two-Piece Wheel.)
(Refer to figure
can
cause failure of the
bolts with re-
5 -4A.)
sultant wheel failure.
a. Clean
all metal parts and grease
seal felts in
Stoddard
solvent
or
equivalent,
and
dry thoroughly.
f.
Prior
to torquing
nuts
(10),
inflate
tube
with
approximately
10-15
psi air
pressure
to seat
tire.
NOTE
CAUTION
A soft bristle brush
may be used to remove
hardened
grease,
dust
or
dirt.
Do
not
use impact
wrenches
on
thru-bolts
or nuts.
b.
Inspect wheel
halves
(6) for cracks
or damage.
c.
Inspect
bearing
cones
(5),
cups
(27),
retaining
g.
Dry
torque
all
nuts
(10)
evenly
to
a torque
value
rings
(1),
grease
seal
retainers
(2),
grease
seal
specified
in
figure
5-4B.
felts
(3)
and
grease
seal
retainers
(4)
for
wear
or
h.
Inflate
tire
to correct
pressure
specified
in
damage.
figure
1-1
of this
manual.
SHOP
NOTES:
5-6D
Change
7

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)