RANS S-20 RAVEN
TEXT MANUAL
09/01/2013
02B-01
ELEVATOR PUSH-PULL TUBE ASSEMBLY & INSTALLATION
ASSEMBLY
1.
Refer to the parts catalog and select the required components for
assembly.
2.
Drill the #30 thru-hole in the forward (doubler end) of the elevator push-
pull tube to 1/4".
3.
Drill the #30 thru-hole in the aft end of the elevator push-pull tube to #11.
4.
Slip the Elevator Yoke into the aft end of the Push-Pull Tube until 1/16"
from bottoming against welds.
5.
Lay the assembly on a flat bench or floor. Insert a long 1/4" rod or bolt into
the 1/4" hole in the forward end. Support each side of the 1/4" rod with
scrap lumber of equal height. Lay a scrap of lumber under the yoke arms.
Re-check for proper insertion of Elevator Yoke and transfer drill #11
through the Yoke using the tube as a guide. Drill one side and cleco, flip
over the assembly and drill the other side. Remove cleco and drill #11 all
the way through. This procedure will assure the yoke is installed
90-degrees to the 1/4" hole at the forward end. Refer to
FIGURE 02B-05.
Bolt Elevator Yoke to Push-Pull Tube.
INSTALLATION
(AFTER COVERING AND PAINTING OF FUSELAGE)
6.
Slip the Yoke/Push-Pull Tube assembly into the tailcone from either side
of Station 3. Once the yoke is near the Elevator Yoke Exits in the fuselage
skin turn it level with the bolt head up and slip yoke arms out of the
fuselage skin. Install Rod Ends with 1/4" Plain Nuts into Elevator Yoke. Be
sure to include the 1/4" plain nuts on the rod ends. Install Rod Ends into
Elevator Yoke. Do
NOT
forget the 1/4" Plain Nuts.
IMPORTANT: Make
sure Rod Ends are engaged at least 10 full threads.
7.
Slide forward end of Elevator Push-Pull Tube over aft end of previously
installed 35" Push-Pull Tube. Bolt through welded bushing of 35" Push-
Pull Tube.
8.
After Elevator installation, bolt the Elevator Horns to the outside of the
Yoke Rod Ends. Check to see if the Elevator moves up and down freely.
9.
Up/down Stops on 35" Push-Pull Tube are ready to be set during rigging.
