4.7. Final Assembly

19. Pull back on legs (f) to release the corners of the corona shield and lift the shield to remove it. Slip a wooden wheel onto the main axle and then press the disk onto the axle with the beads underneath the disk. Add elbows (h) to tubes (C) and replace the corona shield. Adjust the disk so that it is midway between elbows (h) and the corona shield. Turn the pulley handle so that the disk turns and gently adjuest it until it does not wobble. As you turn the pulley the disk should turn freely without touching either the elbows (h), the neutral supports, or the corona shield. When the disk runs true, slip the wooden wheel (y) down, apply some glue, and then push it back into place. Once again check to see that the disk runs true and allow the glue to set.

20. Remove the corona shield, add an endcap (n) to each neutral support. and tape a strip of brush material (0.75-inch x 0.25-inch) to each endcap. Rotate the endcap so that as the disk runs clockwise, the brush is dragged over the endcap.

21. While the corona shield is off, tape a strip of brush material to each of the collector elbows so that as the disk turns clockwise, the brush is dragged over the mouth of the elbow.

22. Return the corona shield to the Dirod. Place a copper tube (n) and a copper pipe (m)(1-inch) into each of the collector tees. Turn the pulley handle clockwise and check to see that each brush contacts each foil strip as the disk turns. If any of the brushes are too short, adjust them or replace them. Turn the pulley and listen for the crackle of static. If it fails to start, take your Dirod into an air-conditioned room and run a hair dryer over it. Triple check that each brush contacts each foil strip as the disk turns.