Piper Lance II - Page 263

LANCE
II SERVICE
MANUAL
7-48.
ASSEMBLY
AND
INSTALLATION
OF
NOSE
WHEEL.
(Refer
to Figure
7-13.)
a.
Ascertain
that
the bearing
cup
(5 or
1 1) for
each
wheel
half (7
and 10)
is properly
installed.
Install
the
tire with
tube
on
the wheel
half
with
the valve
stem
hole
and then
join
the
two wheel
halves.
Install
the
through
bolts (18)
with
the washers
(9
and 17)
and nuts
(8)
to
the valve
stem side.
NOTE
On
aircraft
models
which
use
the Cleveland
Wheel
Assembly
torque
nuts to
90 inch-pounds.
Those
aircraft
models
which
use
the McCauley
Wheel
Assembly
torque
nuts
to 140-150
inch-pounds.
NOTE
On McCauley
Nose Wheel
Assemblies
only,
bushing
(19)
is
required
to prevent
tube
movement.
b.
Lubricate
the bearing
cones
(6 and
12) and
install the
cones, grease
seals
(4 or 13),
felt
rings (3
and 14)
and seal
retainer
rings (2
or 15). Secure
with
snap rings
(1 or
16).
c. Slide
the wheel
on the
axle and
secure with
retainer
nut.
Tighten nut
to allow
no
side play,
yet allow the
wheel to rotate
freely.
Safety the nut
with clevis
pin and secure
pin
with
washer
and cotter
pin.
7-49.
MAIN
WHEELS.
7-50.
REMOVAL
AND
DISASSEMBLY
OF
MAIN
WHEEL.
(Refer
to
Figure
7-14.)
a. Place
the
airplane
on
jacks.
(Refer
to Jacking,
Section
II.)
b.
To remove
the
main wheel,
remove
the
cap bolts
that join
the brake
cylinder
housing
and
the
lining back
plate
assemblies.
Remove
the back
plate
from between
brake
disc
and wheel.
c.
Remove
the
dust cover,
the
cotter
pin and
flat
head pin
that safeties
the wheel
nut,
and
the wheel
nut.
Slide
the wheel
from
the
axle.
d. The
wheel halves
(1 and
2) may
be separated
by first
deflating
the tire.
With the
tire
sufficiently
deflated,
remove
the
wheel
through
bolts (9).
Pull
the wheel
halves
from the
tire
by
removing
the
inner
half
from
the tire
first,
and
then
the outer
half.
e.
The wheel
bearing
assemblies
may
be
removed
from
each
wheel half
by
first
removing
the
retainer
snap
rings (13)
that
secure
the grease
seal
retainers
(12 or
15), and
then
the
retainers,
grease
seals (14)
and
bearing
cone (11).
The
bearing
cups (10)
should
not
be
removed
only
for replacement.
See
paragraph
7-53.
for
bearing
cup
replacement
instructions.
7-51.
INSPECTION
OF
MAIN
WHEEL
ASSEMBLY.
Inspect
brake
disc
for
cracks,
excessive
wear
or
scoring,
rust,
corrosion
and
warpage.
Remove
rust
and
blend
out
nicks,
using
fine
400 grit
sandpaper.
Replace
disc
if cracked
or when
disc
is worn
below
minimum
thickness.
(Refer
to
paragraph
7-58.)
In
addition
also
perform
the
same
inspection
given
for
nose
wheel
in
paragraph
7-47.
Issued:
1/3/78
LANDING
GEAR
AND
BRAKE
SYSTEM
1K23