18
❏
❏
16.
Connect the inboard pushrod to the other
end of the plyw
ood le
v
e
r.
Use medium CA to glue
the hor
n to the inboard door
. In the top-vie
w
photo
,
note ho
w the hor
n is slightly ahead of the le
v
e
r so the
pushrods will not interf
ere when the door closes
.
❏
❏
17.
T
e
mpor
ar
ily disconnect the outboard pushrod
from the bellcr
ank le
v
e
r.
Retr
act the gear b
y
hand
and close the door
.
With the door closed, loc
k
the
pushrod to the scre
w
-loc
k
connector with a 4-40 x 1/8"
[3mm] SHCS
.
❏
❏
18.
Extend the gear and open the door b
y
hand.
Reconnect the outboard pushrod and cycle
the gear with compressed air—both with the nacelle
upside-do
wn and upr
ight.
Mak
e sure both doors
open and close and that the retr
act loc
ks in both the
retr
acted and e
x
tend positions
. Mak
e
an
y necessar
y
adjustments as descr
ibed belo
w
to get the gear and
doors oper
ating correctly
.
❏
19.
Mount and hook up the doors on the r
ight
inboard wing panel the same w
a
y.
K
e
ep the left panel
nearb
y
so it can be used as a ref
e
rence
.
❏
20.
Once y
ou get both doors oper
ating correctly
and reliab
ly
, snap a n
y
lon retainer onto both scre
w
-
loc
k
connectors on the hor
ns on the inboard doors
.
Retract and Door Adjustments:
If the retr
acts don’t retr
act or e
x
tend all the w
a
y or
if the doors don’t fully close
, f
o
llo
wing is a list of
possib
le prob
lems and solutions:
❏
A.
One or both pushrods ma
y be too long.
Shor
ten the pushrods in small increments
.
❏
B
. One or both pushrods ma
y be too shor
t
not allo
wing the gear to retr
act fully
. Lengthen
the pushrods
.
❏
C
.
There ma
y be too m
uch or not enough
tension in the spr
ing.
Mo
v
e
the spr
ing to a diff
erent
setting on the le
v
e
r mount.
❏
D
. There ma
y be too m
uch fr
iction in the retr
act
unit, not allo
wing it to oper
ate freely and all the
w
a
y.
Lightly oil mo
ving par
ts in the retr
act unit.
❏
E.
Some of the par
ts in the door mechanism
ma
y be binding.
Isolate mo
ving par
ts and fi
nd
out if an
y are too tight (ball links on ball link balls
,
cle
v
ises
, scre
w
-loc
k
pushrod connector in inboard
door
, scre
w
holding in bellcr
ank le
v
e
r.
)
❏
F.
The cle
v
is on the inboard pushrod that is
connected to the le
v
e
r ma
y be interf
er
ing with the
inboard pushrod.
Bend the inboard pushrod as
necessar
y to clear the cle
v
is on the other side of
the le
v
e
r.
❏
G.
There ma
y not be enough air pressure to fully
retr
act the gear—compressed air cans adv
er
tised
as
“dusters”
typically put out appro
x
imately 90-
100psi, b
u
t y
our can ma
y be too lo
w
. 60-80psi
should be adequate f
o
r fully retr
acting the gear—
less f
o
r e
x
tending gear
.
❏
H.
Y
o
u ma
y be e
x
tending or retr
acting the gear
too slo
w
ly
. A little momentum and a mild
“slam”
will help the str
u
t and doors e
x
tend and retr
act all
the w
a
y.
