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down limit
switches
in
the
assis
t-step
well
s
top the
drive motor al both extremes of
travel.
The
actuator
is
of
the jackscrew type;
mechanical linkage from
the step opens and closes
the fairing
door.
3.4.2
Trouble
Shootin~
-
See Chart
3-2,
Trouble Shooting,
Assis
t
Step,
3.4.3
Removal -
(a)
Disconnect door
linkage
by removing one of
the
attachment bolts.
(b)
Remove bolt connecting actuator
to
s
tep.
(c)
Drive out the two
outboard
Rollp:ns
with
pin punch.
(d)
Remove
the bolts
attaching outboard
s
upport
to
s ide
of
fuselage.
(e)
Telescope
outboard bushing
in
s
tep pivot
shaft
and remove
s
tep.
(f)
Remove
front flo orboard
of
rear
baggage
compartment and
uphol stery
panel
just forward of
door.
(g)
Eemov
e
boot
clam
p
and disconnect cannon
plug.
(h)
Remove
the two mounting
bolts
and remove
actuator-motor assembly.
3.4.4
Ins
tallation -
(a)
Ins
ert actuator-motor assembly, install
mounting
bolts
and
safety.
(b)
Install boot clamp and connect cannon
plug.
(c)
Mount step
assembly and
outboard
support,
installing
the
mounting
bolts.
(ct)
Slide
bus hing
into
place
and
irftall
Rollpins.
(e)
Install bolt connecting
actuator
to
step.
(f)
Install
bolt
connecting door linkage.
5
(g)
Jack
airplane,
support
tall, and test retract-
ion of
s
tep through
one complete
cycle.
(h)
Ins
tall floorboard
and upholstery panel.
3.4.5
Adjustment
-
(a)
Adjust
down-limit (aft)
switch
to
s
top step
extension just as
head
of stop bolt
hits
positive down
stop.
(b)
Adjust up-limit
(forward) switch
to
stop
s
tep
retraction
just as
door
fully closes.
3.5
NOSE-STEER
ING
MECHANISM
The
s
teerable
nose wheel is connected to the
rudder
pedals
through
a
system of push-
pull
tubes
and hinge-joints. A spring-loaded link
in
the
system
absorbs steering
shocks
which would
otherwise
i:>e
transferred to the
rudder pedals. An automatic cen-
tering
device assures proper wheel alignment for re-
traction.
3.5.1
Removal -
(a)
Turn
nose wheel to full left turn
position.
(b)
Remove
forward (shock) link.
(c)
Remove nose
cone.
(d)
Remove scissors
links and
yoke.
(e)
Remove pilot's
floorboards.
(f)
Remove
aft
link
and
idler
arm.
3.5.2
Installation and Adjustment
-
(a)
Install
scissors
links,
yoke and idler arm.
(b)
Install
fore and
aft
links
adjusting to proper
len~h with
nose wheel and rudder pedals
centered.
(c)
Test
system for binding
through entire pos-
sible
travel.
(ct)
Install floorboards and nose
cone.
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