Install Wd-421L&R-PC bellcranks. See Builder’s Manual section ATTACHING AILERONS TO THE WING and DWG 15A. Remove the top bracket to facilitate installing the bolt.
Install the WD-421 bellcrank as shown on DWG 15A. The bushing in the WD-421 needs to be drilled to final size for the slip fit on the AN4 bolt. The bushing should be slightly longer than the WD-421 aileron bellcrank. It is held firmly between the bellcrank brackets with the bolt. The bellcrank rotates around the bushing, not the bolt. This is the same way that the stick assembly is done also. Lubricate the bushing with your favorite grease when assembling for the final time.
********************************************************************************************* Drilled out the inside of the bushing using a reamer. Adjusted the size of the bushing to 1/64 to 1/32 longer than the stele bellcrank. Not alot of filing required.
