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1. Sprocket
8. Actuator
Screw
2. Check
Nut
9.
Bushing
3. Adjusting
Bushing
10. Snap Ring
7
8
4. Bearing
11. Actuator
Rod End
5. Nut Assembly
12. Tube End
6. Actuator
Housing
13. Actuator
Tube
7. Bracket
3
4
5
1
2
12
13
12
4
10
11
Figure
5-14.
Aileron
Tab Actuator
e.
Remove
the bearing
(4)
from
the
nut
assembly.
sufficiently
free
of
binding to
provide
smooth
operation
throughout
its full
travel.
Secure
with
the
check
nut (2).
Clean
all parts
with
solvent and
inspect for
cracks, corrosion
and
distortion.
Replace
bushings
and
any
parts
showing
f.
Check the
end play
between
screw
(8) and housing
(6).
evidence
of deterioration.
Lubricate
with
grease
The end
play must not exceed
0.025 inch.
MIL-G-23827
prior
to
assembly.
g.
Install
the actuator
rod
end
(11) on
the
actuator
screw
AILERON
TRIM
TAB ACTUATOR
ASSEMBLY
(8).
(Figure 5-14)
NOTE
NOTE
Lubricate all
moving parts with
MIL-G-23827.
Readjusting
adjusting
bushing (3)
and
check
nut
(2)
may reduce
the
end play.
The
nut
must
remain
free
to rotate
and
provide
smooth
a.
Install bearing
(4)
on the nut
assembly
(5).
operation
through its full travel.
b. Install bushing (9)
and
bearing
(4)
on the
actuator
screw
(8).
TESTING FOR FUEL CELL LEAKS
c.
Install the
actuator
screw (8) in the
nut
assembly (5).
Although
the chemical test is
more
sensitive,
either of
the
following
test procedures
may be
used to
detect leaks in the
d.
Position the
actuator
screw
(8)
and
the nut
assembly
(5)
bladder
cells.
in the
actuator
housing (6) and
secure
with snap
ring
(10).
a.
Soap Suds Test
e. Using
a spanner
wrench,
screw
the adjusting bushing
(3) into the
actuator
housing (6) until the end
play
between
1.
Attach test
plates
to
all
fittings.
the
nut
assembly (5)
and
housing (6) is
removed.
After
tightening
the
adjusting bushing (3), the
nut assembly
(5)
2.
Inflate the cell
with air
to a pressure of 1/4
psi
must
be free to rotate
and
the complete assembly must be
maximum.
5-20
C3
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Table of Contents
Troubleshooting
