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f.
Join the
tab
horn
and bushing and clamp together
g.
Remove
the
existing
rod
end from
the
tab push
rod
(use
care not to squeeze out all
of the
adhesive)
until
the
assembly at
the
tab horn end and
replace
it
with a PN
adhesive
has
cured completely (approximately
24 hours).
96-610026-7
rod
end.
g.
Reinstall
the
trim
tab
with
a new P/N 96-526021-1
h.
Reinstall the
trim tab
and
install
a
new
PN
rod
assembly and a
new
NAS464P4-8;M/ bolt at
the tab
horn
AN173C6/M/ bolt at
the tab
horn
end of the push
rod.
end.
NOTE
NOTE
When connecting the tab push
rod
to
the tab
horn,
When connecting
the
tab push
rod
to the tab horn,
the
rod
end must be
free
to
move without
binding
the
rod end must be
free
to move
without
binding
against the
tab
horn
or
the
bushing
in
the tab
horn.
against the bushing
in
the
tab
horn.
(Turning
the
(Turning the
nut
on
the
bolt
to
contact the
rod end
nut on
the
bolt
to
contact
the
rod
end plus one
plus one castellation should accomplish this.)
castellation should
accomplish this.)
i.
Lubricate
all pivotal points
with
grease
conforming
to MIL-G-23827 specifications.
h.
Lubricate all pivotal points
with
grease conforming
to MIL-G-23827
specifications.
ELEVATOR
DOWN
SPRING LOADS
For Tab Horns
Of
.091-Inch
Thick Aluminum With
A Pressed
With
down spring connected,
the
loads in
the elevator system
In
Steet Bushing
are
to
be as follows (measured
with hand force
on control
wheel):
a.
Remove
the
existing bushing from the tab horn and
ream the
hole in
the tab
to
.3276/
.3291-inch
inside
diameter.
Airplanes
Prior
to Serial
Airplane Serial TD-303
TD-303
and after
b.
Using a clean rag dampened with methyl ethyl
ketone
or equivalent, clean
the
hole in
the tab
horn,
the area
13
to
15 lbs.
at
0° Eleva-
19
to
21 lbs.
at
Neutral
around the
hole
and a P/N 96-610026-5 bushing-
tor
18 lbs.
at
10°
UP Eleva-
22
to
24
lbs.
Break-out
c.
Scuff sand
the
contact surfaces of
the
bushing and
for
at DOWN Elevator
the
tab
horn and clean
the
area thoroughly again as specified
23
to
25
lbs.
at
25°
UP
in
step "b".
Elevator
Tolerance
±
1 lb.
d.
Wipe
off
the parts again with a clean rag before the
solvent evaporates.
The
elevator
system must be freed
up
sufficiently to allow
free
e.
Apply
a thin coat of adhesive (EC2216, P/N of
return
of the elevator
from full
UP to full
DOWN
position.
Minnesota Mining & Mfg. Co., St. Paul, Minnesota or equiva-
lent)
to
the
contact surfaces
of
both
the
bushing and
the tab
ELEVATOR DOWN SPRING
INSTALLATION
horn.
a.
Hook
spring over
roller
on elevator bellcrank.
f.
Join
the
tab horn and the bushing and clamp
to-
gether
(use
care not
to
squeeze out all of
the
adhesive)
until
b.
On airplanes not
incorporating
down spring ad-
the
adhesive has cured completely (24 hrs.).
justment
straps,
hook
other end of spring over
bolt
3-68
C1
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Table of Contents
Troubleshooting
