09/11/2018
RANS S-21 OUTBOUND
TEXT MANUAL
91
MAIN GEAR INSTALLATION
MAIN GEAR FIT UP
1.
Become familiar with the Main Gear Installation PARTS MANUAL DRAWINGS
and collect the parts shown in the drawings.
2.
Examine your Gear Legs. If your inspection reveals any gouges or scratches,
polish or sand to remove.
3.
Support the fuselage on sturdy sawhorses
4.
Install the landing gear using the hardware shown in the PARTS MANUAL
DRAWINGS. Refer to
FIGURE 08-04
for location on Fuselage. Center of Landing
Gear Spacer Bushings will need to be drilled out to 5/16".
5.
Top Main Gear Clamp Plate should be orientated per
FIGURE 08-05
. Be sure
the Top Main Gear Clamp Plate fits tight against the Fuselage Longeron. File
upper side of clamp plate if required.
NOTE:
Oval hole will be orientated fwd or aft depending on whether on left
or right side.
6.
If any movement is evident where the Clamp Plates intersect the Gear Legs, use
a file to remove material from the Landing Gear Spacer Bushings until the
movement is eliminated.
IMPORTANT:
Be sure to install Anti-chafe Strip between Gear Leg and
Bottom Clamp Plate.
IMPORTANT
TORQUE MAIN GEAR MOUNTING BOLTS TO THE FOLLOWING:
AN5 = 140 INCH-POUNDS
AN6 = 190 INCH-POUNDS
7.
It is recommended to paint the Gear Legs and Clamp Plates.
8.
Final install Gear Legs after skinning and painting of Fuselage.
!!! CAUTION !!!
Do
NOT
Powder Coat or Heat-Treat Gear Legs.
Doing so may remove required temper and strength.