Vacuum Tube Assembly
Vacuum tubes must be assembled together before use.
Align the notches and the triangles on upper 12 and lower 13 tubes. (Fig. H)
Push the lower tube firmly into the upper tube, until the triangles click into place. (Never operate apart).
In the interest of safety, it is not intended for the tubes to be separated once assembled.
Remove the fan cover 14 from the bottom of the power head by inserting a screwdriver/hex key in the slot on
the end of the fan cover (located on the back of the power head) to actuate the internal release, and remove the