Mooney M20M - Miscellaneous; Gear Shock Disc; Inspection

SERVICE AND
MAINTENANCE
MANUAL
M20M MOONEY
AIRCRAFT
CORPORATION
32-80-00
-MISCELLANEOUS
32-81-00
LANDING
GEAR
SHOCK
DISC
INSPECTION
1.
Aircraft with
full
fuel
load
and
weight
on
iandingl
D
gear.
A.
Main
gear
shock discs.
(1)
Remove
dust
shield.
Check
gap
retaining
collar
(A)
(Figure
32-23)
and
top
plate (B).
Allowable
gap
is
0.00
to 0.85
inches.
(2)
Replace
discs
when
gap
exceeds
tolerance.
Use
a
shock disc
replacement
tool
(C),
P/N
GSE
030011,
told
P/N
ME121),
to
remove
and install
main
gear
shock discs.
Use
removable
pad
from
tool
f~e
as
a
guide
on
top
of shock
link
to
align
discs
as
theyl 7
T
are
being
compressed.
(3)
Careful
application
of
the
shock
disc(
,F
replacment
tool
is
recommended
during
replacement
main
gear
shock disc
to
keep
from
damaging
fittings.
PAD
NOTE
Shock disc
retention
collar should
be
installed
with the
chamfer
facing
down
and forward.
(4)
Main
landing
gear
leg
assembly
axle is
to
located
to
provide
a
minumum
of.23 inches
between
tire
and
any
component
inside
wheel
well.
Alternate
collars,
P/N
510049-001,
-003,
-005, -007,
-009
or
-011
can
be
substituted
for
basic
NOSEGEAR
SHOCK DISC REPLACEMENT
dash
no.
to
obtain
this clearance.
If
any
interference
FIGURE
32-24
occurs
between
tire and
other
components
during
retract
cycle,
next
higher
dash number
collar
moves
(2)
Replace
shock discs
if
gap
is found.
Use
axle
approximately
.50
inches
aft.
shock disc
replacement
tool
(F),
P/N
GSE
030010,
told
P/N
ME120),
to
remove
and install
nose
gear
shock
B.
Nose Gear
Shock
Discs.(See
Figure
32-24)
discs. Use
removable
pad
from
tool
as
a
guide
on
top
(1)
Check
for
gap
between
retaining
collar
(D),
of shock link
to
align
discs
as
they
are
being
(Figure
32-24)
and
top
retaining plate
(E).
Top
compressed.
NOTE
Dimension
O, (Figure
32´•24),
is critical
to
properly
locate
nose
wheel
position. Leg
A
assemblies
can
vary,
due
to
manufacturers
tolerances. Dimension
O
in
a no
load
fully
B~
extended
position
should
be
approximately
3.0
inches. Add
spacer
under
collar( D)
per
SE
M20-202,
as
needed.
See
(Figure
32-22),
paragraph
30-50-02,
for
proper
steering/tracking
rigging.
AD
2.
Raise
aircraft
on
jacks
shocks
fully
extended.
A.
Inspect
nose
and main
gear
shocks
for
evidence
of
gap
between
retaining
collar
and
retaining
plate.
The
disc
preload
must
be
great
enough
to
maintain
P
complete
wheel
extension
during
retraction.
B.
Replace
shock
discs that
have lost
resilience.
C.
Inspect
retaining
collar
and bolt
for
deformation,
wear,
and cracks.
D.
Replace
defective
bolt and
collar.
CAUTION
MAIN GEAR
SHOCK
DISC REPLACEMENT
FIGURE
32-23
Both
collar
and bolt
must
be
replaced
when
one
or the
other is
defective.
32-80-00
4-99
24
OLDWILLWAYNE