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Editing Step 139 —

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Looking at Pic 1, you will route the belt down the extrusion, over the top idler, but behind the lower idler. This will feed the belt down below the upper frame.

Have the belt follow the inside channel of the extrusion to bring it into the machine below the upper frame.

Make a loop at the top near the upper idler to give you more slack and bring that loop over the motor pulley as shown in Pic 2.

Pic 3 shows the proper belt routing. On the top idler, the teeth of the belt ride along the idler, on the motor pulley the teeth are touching the pulley, and on the lower idler, the smooth side of the belt will be touching the idler.

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