Instruction manual

L. Tighten all components securely unless otherwise noted.

Step 3: Assemble and Install The Aileron Bell Cranks

Parts required: Bag #

2 #122-33 Aileron Bell Cranks w/ Bearings 5D

2 #122-35 Bell Crank Collars 5D

2 #0051 M3 x 3 Socket Set Screws 5D

2 #0115 M3 x 10.5 Threaded Ball 5D

2 #0109 M3 x 8 Threaded Ball 5D

Refer to Drawing #5C

A. Refer to the drawing for orientation of the threaded balls in each bell crank. The installation of all the balls

will be on the side of the bell crank with the longest bearing boss. The ball must be installed in a manner

which creates a right and a left unit.

B. Using Blue Loctite, install one #0109 and one #0115 threaded balls into each #122-33 Bell Crank.

C. Select two #0051 M3 x 3 socket set screws, two #122-35 retaining collars and the assembled bell cranks.

Note: The position of the previously installed #0169 pivot studs near the main shaft in each main frame. Slide

one bell crank onto each #0169 pivot stud with the flat side towards the main frame and the #0115 threaded

ball ( long one ) towards the top ( the balls should be facing outwards ). Followed by one #122-35 collar.

Apply Loctite to each #0051 M3 x 3 socket set screw and install in each collar. Adjust each so that the bell

crank pivots move freely without end play. The set screws only require moderate tightening torque.

Step 4: Final Main Shaft Adjustment

This step involves the #0875-1 upper split main shaft collar and #0059-1 M2.5x6 socket head bolt (previously

temporarily installed in Section III, Step 5H). Place a small drop of Loctite on a scrap plastic bag. Rotate the

main shaft until the bolt in the upper collar is visible through the upper frame Awindow,@ insert a finger through the

opposite frame Awindow@ and secure the collar. Use an M2.0 Allen tool to remove the bolt, dip into the Loctite,

and re-install into the collar. While holding the collar with the tool, apply light downward pressure on the main

shaft, upward pressure on the collar, and tighten the bolt using moderate torque. The main shaft should rotate

freely and have no vertical free-play.

Step 5: Assemble and Install the Rudder Bell Crank

Parts Required: Bag #

1 #0009 M3 Flat Washer (small) 5E

2 #0061 M3x8 Socket Head Bolt 5E

1 #0105 M3x4.5 Threaded Ball 5E

1 #0107 M3x6 Threaded Ball 5E

2 #0636 M5x10x3 Flanged Bearings 5E

1 #0862-4 Brass Spacer Ring 5E

1 #0862-1 Rudder Bell Crank Standoff 5E

1 #0063 M3x10 Socket Head Bolt 5E

1 #0862-2 Rudder Bell Crank 5E