09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
50
ELEVATOR AND TRIM TAB
Refer to section
5
of parts and figure drawings.
ELEVATOR SKIN FORMING
Use a tube with a 1 1/4" outer diameter to roll form the leading edges of the elevator
skins.
10.
See
FIGURES 05-01
and
05-01A
for elevator skin bending and orientation.
CAUTION:
If bent in the wrong direction, the skin must be replaced.
11.
Set the tube on a table and line up the elevator skin leading edge holes along the
top of the tube.
12.
Transfer drill (2) holes near the ends from the skin to the tube and cleco in place.
13.
Check the alignment of the holes in the skin to the top of the tube. They need to
follow the top of the tube pretty well.
14.
Transfer drill and cleco the rest of the holes in the skin to the tube.
15.
Clean the table to be used from debris and chips. Flip the skin/tube over and
place it on the edge of the table with the clecos hanging off.
16.
Drill a hole at either end of the 1 1/4" O. D. tube outside diameter and insert a
screwdriver or anything handy to be used for leverage.
17.
This will probably take 2 people. Force the tube down toward the table and rotate
the tube to roll the skin tightly around the tube. Roll all the way until the clecos
are about 90° to the table. When finished, the skin should be bent to 85-90°.
18.
Repeat this process to form the leading edge of the other elevator skins.
ELEVATOR ASSEMBLY
1.
Press the bearing into the elevator horn. Use a rivet and 2 washers to retain the
bearing in the horn.
2.
Cleco together the frame assembly as shown in part drawing. Press the bronze
flange bushings into the hinges before assembly. Refer to ELEVATOR AND
ELEVATOR TRIM TAB INSTALLATION for orientation. Ream the bushings to
#11, if a 3/16” bolt will not insert into the bushings.
NOTE:
The rib flanges face inwards toward the center of the assembly,
except the (2) Elevator Horn Ribs at the center which are riveted to the
Elevator Horn.
NOTE:
The flanges on the (2) outside trailing edge ribs face inwards and
the others face outwards.
3.
Cleco the elevator horn to the (2) Elevator Horn Ribs and rivet together.