MAKE SHAFT END PIECES
Solid steel end pieces fastened to the ends of the pipe shaft provide smooth surfaces to fit into the
MAKE SHAFT END PIECES
," Rotor #1 for specific information.
For this rotor, both shaft end pieces may be made the same like the top end piece in Rotor
#1.No extra length is needed on the bottom end piece to attach to a pump extension shaft.
ATTACH THE END PIECES TO THE PIPE SHAFT
Cut off each end of the pipe shaft squarely about 3" beyond the edges of the disc/shaft brackets
if there is that much pipe; if not, simply make sure that the ends are trimmed squarely. If
necessary, file the inside surfaces to accommodate each shaft end piece.
Push the pipe end of one of the end pieces into one end of the pipe until the collar rests on the
end of the pipe. Mark 1" from the end of the pipe with a punch.Drill a 1/2" hole through the pipe
and the end piece, and deburr it. Keeping the end piece in place, bolt through the hole with a 1/2"
x 2 1/2" bolt and tighten down with nut and lock washers.
Repeat the same procedure for the other end piece on the other end of the pipe shaft.
BALANCE THE ROTOR
Prepare two simple wood pole tripods. Place the top bearing in one and the bottom bearing in the
other. Suspend the rotor horizontally between the tripods, with the shaft end pieces in the
bearings. The bearings must be operating smoothly in order to detect any other causes of uneven
movement in the rotor.
Give the rotor a few twists. If it tends to stop in the same position every time, then the side that
comes to rest at bottom is the "heavy side." Tape one or more bolts close to the edge of the top
side of each wood disc equal number on each disc.Spin the rotor again.Keep adjusting the
number, size and position of the bolts until the rotor stops in any position.
Drill holes in the discs about 1 1/2" from the edge in the areas where the bolts were temporarily
attached and insert them in the holes. If you drill the holes slightly Smaller than the outside
diameter of the bolts, then the bolts may be turned in like screws. Otherwise fasten them with
nuts and washers; if you do this then the nuts and washers must be used in the balancing process.