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Insert two M3 nuts into each orange arm, as shown in the second picture. NOTE: Only two of the holes will accept nut traps.

Insert two M3 x 30mm? pan-head machine screws into each orange arm. NOTE: Only insert the screws into the ROUND counter-bored holes.

Carefully assemble both orange arms and the black pulley as shown in the first picture. The nuts and screws are caddy-corner, so when facing each other, everything should line up nicely (nut to screw, etc).

NOTE: Do not fully tighten until you complete the next step

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