Cessna 177 SERIES Service Manual

b.
Inspect
wheel
halves
for
cracks
or
damage.
wheel
have
been
removed.
In many
cases,
separ-
c.
Inspect
bearing
cones.
cups.
retaining
rings
and
ating
the
upper
and
lower
struts
will
permit
replace-
seals
for
wear
or
damage.
ment
of
parts
and
inspection
without
removal
or
com-
d.
Inspect
thru-bolts
and
nuts
for
cracks
in
threads
plete
disassembly.
or
cracks
in
radius
under
bolt
head.
e.
Replace
cracked
or
damaged
wheel
halves.
WARNING
f. Replace
damaged
retaining
rings and
seals.
g.
Replace
any
worn
or
cracked
thru-bolts
or
nuts.
Deflate
strut
completely
before
disconnecing
h.
Replace
any
worn
or
damaged
bearing
cups
or
torque
links
or removing
bolt
(7),
lock
ring
cones.
(25)
or
bolt
(30).
i.
Remove
any
corrosion
or
small
nicks.
j.
Repair
reworked
areas
of
wheel
by
cleaning
thor-
a
Remove
filler
plug
(8).
Invert
strut
and
drain
oughly,
then
applying
one
coat
of
clear
lacquer
paint.
fluid
into
container.
k.
Pack
bearings
with
grease
specified
in Section
2
b.
Remove
torque
links
from
strut
assembly,
noting
of this
manual
position
of washers,
spacers
and
bushing.
(Refer
to
figure
5-9.)
I 5-24I.
NOSE
WHEEL
REASSEMBLY.
(Mc
Cauley
c.
Remove
lock
ring
(25) from
groove
inside
lower
Two-Piece
beginning
with
17702492.)
end
of
upper
strut.
A
small
hole
is provided
in
lock
a.
Assemble
bearing
cone,
grease
seal
retainer,
ring
groove
to
facilitate
removal.
felt
grease
seal,
grease
seal
retainer
and
retaining
ring
into
both
wheel
halves.
NOTE
b.
Insert
tube
in tire,
aligning
index
marks
on
tire
and
tube.
Hydraulic
fluid
will
drain
from
strut
halves
c.
Place
wheel
half
into
tire
and
tube
(side
opposite
as
lower
strut
is pulled
from
upper
strut.
valve
stem),
aligning
base
of valve
stem
in
valve
slot.
With
washer
under
head
of thru-bolt,
insert
bolt
d.
Using
a straight.
sharp
pull.
separate
lower
through
wheel
half.
strut
from
upper
strut.
Invert
lower
strut
and
drain
d.
Place
wheel
half
into
other
side
of tire
and tube,
fluid
into
a
container.
aligning
valve
stem
in valve
slot.
e.
Remove
retainer
ring
(17)
at upper
end
of lower
e. Install
washers
and nuts
on
thru-bolts
and
pre-
strut
(21).
Remove
piston
head
(19).
torque
to
10-50
lb.
in.
f.
Remove
bearing
(22),
scraper
ring
(23),
back-up
,-.----UTFIO\ ,ring
(24)
and lock
ring
(25) from
lower
strut
(21).
C
AU
T IJOND
ag.
Remove
air
filler
valve
(35).
h. Remove
bolt
(30),
tow
bar spacers
(29)
and bush-
Uneven
or
improper
torque
of
the
nuts
can
-
ing
(28).
cause
failure
of the
bolts
with
resultant
i.
Using
a
rod.
through
hole
in piston
rod
at top
of
wheel
failure.
lower
strut,
push
floating
piston
(33)
and
plug
(31)
from strut.
f.
Prior
to torquing
nuts,
inflate
tube
with
approxi-
mately
10-15
psi
air
pressure
to
seat
tire.
-NOTE
ZCAUTION-
Lower
strut
(21)
and
fork
(27)
area
press
fit,
drilled
on
assembly.
Separating
these
units
Do
not
use
impact
wrenches
on
thru-bolts
is not
recommended,
except
for
replacement
or nuts.
of
parts.
g.
Dry
torque
all
nuts
evenly
to
a
torque
value
140-
j.
Remove
bolt
(7)
at
top
of
upper
strut.
Remove
150
lb.
in.
collar
(6)
and
fitting
assembly
(12).
h.
Inflate
tire
to correct
pressure
specified
in
chart
in
Section
1 of
this
manual.
NOTE
5-25.
WHEEL
BALANCING.
Refer
to
paragraph
Do
not
remove
steering
collar
(14)
unless
5-16
for
wheel
balancing.
bearing
or
collar
replacement
is
required.
5-26.
STANDARD
NOSE
GEAR.
k.
Using
a
rod,
through
lower
end
of
upper
strut.
1 5-27. DESCRIPTION.
The
standard nose
gear shock
push plug (10) from
strut.
I5-27.
DESCRIPTION.
The
standard
nose
gear
shock
L Remove
and
discard
all
O-rins.
strut
is shown
in
figure 5-9.
The
optional
heavy-duty
nose
gear,
discussed
later
in
this
Section
is
shown
in
5-2.
N
TRT
INSCT
A
5-29.
NOSE
GEAR
SHOCK
STRUT
INSPECTION
AND
figure
5-10.
Removal
and
installation
of
the nose
gear
REPAIR.
(Refer
to
figure
5-9.
may
be
accomplished
as
outlined
in
paragraph
5-19.
a Thoroughly
clean
all parts
in
cleaning
solvent
Speed
fairing and
wheel
removal
and installation
are
and inspt
th cean
all p
outlined
in paragraphs
5-20
and 5-21.
and
nspect them
carefully.
outlined*
ib.
All
worn
or
defective
parts
and
all
O-rings
and
5-28. STANDARD NOSE GEAR DISASSEMBLYback-up rings must be replaced with new parts.
c.
Sharp
metal
edges
should
be
smoothed
with
No.
(Refer
to
figure
5-9.)
The
following
procedures
400
emery
paper,
then
cleaned
with
solvent.
400 emery
paper, then cleaned
with solvent.
apply
when
the
shock
strut,
speed
fairing
and
nose
Change
7
5-14C

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)