Table of Contents
Advertisement
the master
swltch
untll the deslred pos ltlon
Is reached.
2.9.5.6
Rigging
Main
Landing Gear
-
WIU1
the
airpla ne
on
jacks, use the
follow-
ing procedures:
(a)
A major adjustment
of
either
main
gear
may be made by removing the bolt
securing
the jack-
screw actua tor
to
the
drag
leg
and
turning
Ul
e
screw
(a half turn at
a
tlme) in
or out as
required.
CAUTION
The actuator clevis must
align
freely wllli
the
drag brace fitting.
If
any
misalignment is evi-
dent,
loosen
the
actuator s upport bolts
,
realign
the clevis
and
retighten
the
bolts.
Failure to
maintain proper
alignment
will
result in
galling
of
the
actuator
nut.
(b)
An
alternate
means
of
adjustment
is
to re-
move the bolts from the universal
joint
near
est the
actuator and
turn the
drive
shaft (with a
pin inserted
through the shaft hole)
to a
ctuate the jackscrew
to
the
des
ired
position.
(c)
Fine
adjustments
to
the m ain
gear
may be
obtained
by
changing
the position of
the universals
(at the wing
root)
on
the splined
drives.
(d)
Make
certain
landing
gear position
switch
is in
the DOWN position,
then reset circuit breakers
and move
jacks.
NOTE
When the main landing gear
doors
are
proper-
ly
rigged,
to
the
UP position, considerable
"play"
in
the doors
and
linkage can
be
noted
when
the gear is in
the DOWN position.
It
is
recommended that the
landing gear door rig-
ging be inspected at
each intermediate inspec-
tion
or
more
often
if
deemed necessary.
2.9.5.
7
Rigging Nose Landing
Gear
-
(a)
Conditions requiring a major
readjustment
may be corrected in
the same manner as outlined in
step
a,
paragraph 2.9.5.6.
(b)
Fine
adjustments
of
the nose gear may
be
obtained
by changing
the position
of
the
drive
shaft on
the splined
drive at the actuator,
as
follows:
1. Release the tension on the retract
chain.
2. Remove the snap ring on
the
opposite
side
of the bearing from the sprocket.
3. Slide the shaft outboard
until
it
is
free
of
the splined
drive.
4. Change the position of the
drive
shaft on
the splined
drive as required
to
obtain
the
26A
desired
action on
the
gear. Replace shaft
on s
pline.
5.
Replace Ule
snap ring in its groove.
6. Restore
chain
tension.
(c)
Make certain
landing gear
switch is in the
DOWN
posltlon
and
reset circuit breakers
and re-
move
jacks
from
Ule airplane
.
2.9.6
Landing
Gea
r
Electrical
System
-
2.9.6.1
Landing Gear P
osition
Switch -
The landing
gear position switch,
located
to
Ule
right
of Ule
control column
on
the
subpanel,
controls
the
la
nding
gear motor
through
a dynamic-
brake relay
assembly
mounted
beneath the front
passenger
seat.
To
prevent
accidental
retraction
on Ule
ground,
a locking
lever to the left
of
the
switch
must be disengaged before
switch can be
moved.
2.9.6.1.1
Trouble Shooting
-
See Chart 2-1, Trouble
Shooting, Landing
Gear Motor and
Switch.
2.9.6.2
Up-Limit Switch -
The landing gear up-limit
switch is located
on
the left side
of
the limit-switch bracket
on
the
front spar adjacent to the landing gear motor.
When
fully retracted
position
is
reached,
it
opens
the cir-
cuit to the
landing
gear motor
and
simultaneously
closes the circuit to the red
"
up"
indicator light.
2.9.6.2.1
Trouble
Shooting -
See
chart
2-3,
Trouble
Shooting,
Limit
Switches
and
Safety
Switch.
2.9.6.2.2
Adjustment -
(a)
Jack airplane
and
support tail section.
(b}
Retract gear
until positive
up stops
are
approximately
1/
16
inch apart.
NOTE
A gage may be
fashioned
to take
this
measure-
ment
through
the nacelle
opening
directly
be-
neath the inboard positive up
stop.
(c)
Adjust up-limit switch with hexagonal
mounting nuts so that plunger
is
depressed
1/
16 inch
beyond point where switch clicks.
(d)
Completely extend
gear and
again re-
tract
it
without
stopping
in
an intermediate position.
(e)
Make fine
adjustments with above mount-
ing
nuts,
if
necessary,
until switch stops
retraction
when positive
up stops
are 1/16 inch apart.
Revised 1
Iune
1955
Advertisement
Table of Contents
