Owner`s manual

11
Step 5:
Place the tail boom on the rear of the turbine powerhead and insert the 12 mm tail pivot pin from the top.
If the parts are aligned properly the pin should insert easily. Do not use a hammer to pound the pin in
place, as this will cause scoring of the bronze bushings. Secure the tail pivot pin with the tail pivot pin
collar (on top) and (2) stainless steel cotter pins, as shown in Figure 7. Note: Failure to properly install
and secure both cotter pins will lead to loss of the tail boom. Let the tail hang down so the turbine head
turns part way up for easier blade assembly.
Figure 7: Tail Boom Attachment
Step 6:
Attach the blades as shown in Figure 8 using the M10 hardware provided. Insert bolts and start all three
blade nuts. Then, partially tighten the nuts in the order shown in Figure 9. We recommend bolting one
blade up solidly and leaving the other two somewhat loose while you check the tip-to-tip blade distance.
We recommend checking, and adjusting as necessary, the blade tip spacing to ensure that the blade tips
are equally spaced. This step will help make the wind turbine as smooth running as possible, which will
maximize the operating life of the bearings and reduce vibration related noise. The blade tip-to-tip dis-
tances should not differ by more than 1/4” for smooth operation. Finally, torque the nuts (in order shown
in Figure 9) to 45 ft-lbs each. Loctite is not necessary on the blade fasteners because the nylon locking
nuts provide adequate locking.