Mooney M20M - Page 153

MOONEY
AIRCRAFT
CORPORATION
M20M
SERVICE AND
MAINTENANCE MANUAL
H
J
Iq,L
I I Bci~l!
O\\I
~o
da
MAIN
GEAR RETRACTION TUBE
ADJUSTMENT
POINTS
FIGURE
32-7
E.
If
preload
is
not
within
prescribed
limits,
proceed
1~
Raise
aircraft
on
jacks
and
remove
three
Gear
Rigging
procedures,
SECTION
fiberglass
belly
access
panels.
Assist
Bungee
Assy
Removal
(when required).
F.
If
main
gear
preload
needs
re-adjusting,
the
Retract
landing
gear
until
rigging
pin
holes
(B)(Fig.
nose
gear
bungees
should
be re-checked
per
8,
(C)
32-4)
line
up
on
bungee assembly
and
insert
3/16
in.
above
(Fig. 32-8).
pin.
NOTE
CAREFULLY
BUMP
gear
UP,
with
the
gear
safety
When
gear
overcenter
preload
check
is
bypass
switch,
until there
is
zero
load
on
bungee
assy
completed,
electrically
extend the
gear
and
rod end.
Remove AN3 bolt
at
rod end
and
AN4
bolt
at
check the
nose
gear
tube
bungee
springs
to
block;
remove
bungee
assembly.
assure
they
have
not
compressed completely
2.
Pull
the
landing
gear
actuator
circuit
breaker
out.
resulting
in
no
remaining
deflection. This
would
indicate
excessive
preload
or
weak
bungees.
3.
Loosen
jam
nuts
(E)
on
the
main
retraction
tubes
(L),
Fig.32-7;
disconnect tubes
at
inboard bellcranks
32-30-02
MAIN LANDING GEAR SYSTEM
(M).
RIGGING
4.
In
nose
gear
well,
loosen
jam
nuts
(G),
Fig.32-6,
Changing
eccentric
bearing
position
can
change
on nose
gear
retraction
tubes
(F).
deflection
on
bungee
spring.
Shortening
tube
assy.
5.
At the
main retraction
bellcrank
(A),
Fig.32-12,
creates
compression
on
bungee
(refer
to
Fig.
32-8)
disconnect
the
nose
gear
retraction tubes and the
actuator
barrel
nut at
(N),
Fig.
32-12.
560245
(REF)
Nose Gear
Bungee
6.
Check
dimension
from
the
rod end
center to
the
end
of the
barrel
nut
housing
on
actuator
(Avionics
Products
only, Plessey
is
non-adjustable)
to
be
1.25
+.000/-.010.
Adjust
rod end
bearing,
if
necessary,
and
secure
with
set
screw
and
jam
nut.
Deflection
of
spring
from
static
length
to
rigged
position
to be
.030
to
.070
in.
NOSE
GEAR
BUNGEE
SPRING FIGURE
32-8
4-99
32-30-02
OLDWILLWAYNE