Adding the Rotator
During the tower assembly, I didnt install the braces that join the top section to the middle section. That way the top section could be easily removed so that it could be stood upright on the deck for installation and leveling of the rotator, mast and thrust bearing. The Yaesu GS065 thrust bearing has 4 unique fingers that are held against the mast by the adjustment screws. That way there is no way the mast can be damaged by the eight mast positioning adjustment bolts. After the mast was centered in both the rotator and thrust bearing, all the bolts on the rotator plate, clam shell brackets and thrust bearing were tightened. Then the rotator was tested for 360 deg rotation. This part was a little time consuming but it was much better than climbing the tower to fix a screw up later.
w7is at 7:25:00 PM PDT Blog about this entry