RANS S-20 RAVEN
TEXT MANUAL
04/01/2015
01J-01
SLIDING SEAT ASSEMBLY
FUSELAGE PREPARATION
(BEFORE COVERING AND PAINTING OF FUSELAGE)
1.
Locate, mark and drill all 4 fuselage seat tubes per
FIGURE 01J-01
. Cleco
as you drill.
HINT: Best alignment between matching Sliding Seat Rails
may be obtained by placing assembled seat in position with the 1/4" Quick
Pins resting in matching notches of Seat Rails. Check alignment of Seat
Rails with the seat in both the FWD and AFT positions.
2.
Final size drill the previously drilled #11 holes to 1/4". Install Rivet Nuts.
Refer to
FIGURE 01J-02
for procedure if you do not have a Rivet-Nut
Puller.
3.
Fabricate Seat Stop Tubes from raw stock. Bolt Stop Tubes and Sliding
Seat Position Rail to installed rivet nuts.
SEAT ASSEMBLY
(BEFORE OR AFTER COVERING AND PAINTING OF FUSELAGE)
4.
Trim lower end of Seat Back Frames per
FIGURE 01J-04
. Doublers have
been installed in the Seat Back Frame prior to the lumbar bend. Drill them
out to #11 using the frame holes as a guide. Bolt a set of Seat Plates to
each leg of the Seat Back Frame. Refer to
FIGURE 01J-04
for
orientation. Orientate bolts with nuts facing inward towards each other.
Leaving the nuts slightly loose at this time will aid in installing the
Seat Bottom Frame.
5.
Modify Seat Bottom Frame per
FIGURE 01J-05
.
HINT: Pull an
aluminum tube or straight edge along the bottom to mark a centerline on
the each tube.
The Slider Block will rivet to the Seat Bottom Frame
after the Bottom Cushion is installed.
6.
Place Seat Bottom Pan on top of Seat Bottom Frame. Refer to
FIGURE 01J-06
. Be sure side and front bent flanges are tight
against Frame. Transfer drill #30 and cleco.
7.
Cleco Slider Block to lower side of Bottom Frame. Mark and trim
Bottom Pan to clear Slider Block. Refer back to
FIGURE 01J-06
for
detail. Radius all sharp corners of Bottom Pan. Rivet Bottom Pan to
Bottom Frame. Remove Slider Block.
8.
Modify 8 Multi-Hole Tangs per
FIGURE 01J-08
. Rivet Multi-Hole Tangs to
inside and outside of each Seat Bottom Frame.
