STEP 4 (See Diagram 4)
A.) Attach the Butterfly Base (#14) to the front of Rear Vertical Frame (#6). Attach the Butterfly
Pulley Bracket (#15) to the back of the Rear Vertical Frame. Align the holes and secure them
with one M10 x 2 ¾” Carriage Bolt (#72), Ø ¾” Washer (#86), and M10 Aircraft Nut (#83)
from the side. Secure it with two M10 x 3 ½” Allen Bolts (#79), four Ø ¾” Washers (#86),
and two M10 Aircraft Nuts (#83) from the back of Rear Vertical Frame.
B.) Insert the pivot on the Left Butterfly (#20) into the hole on the Butterfly Base from the bottom.
Secure it with one Lock Ring (#57), Ø 1 ½” Washer (#67), M6 x 1 ¼” Allen Bolt (#82), and
M6 Aircraft Nut (#85).
C.) Attach the Butterfly Arm Pad (#33) to the Left Butterfly. Secure it with two M8 x 2 ½” Allen
Bolts (#81) and Ø 5/8” Washers (#87).
D.) Repeat Procedures B & C above to install the other side.
DIAGRAM 4
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