Windy Nation Rover Wind Turbine User Manual

Page 10

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because it supports the weight of the wires hanging down the tower. Failure to tighten the
cable gland properly could cause the tower wires to slip downward and put tension on the
three wires coming out of the generator. This could cause damage to the generator.

For towers over 25 feet tall, a stainless steel hose clamp needs to be firmly clamped

around the three tower wires directly above the cable gland nut (See Figure 5 above). Stainless
steel hose clamps can be purchased from local hardware stores. The hose clamp adds
secondary support so that the tower wires do not slip down the tower and put unnecessary
tension on three generator wires. This is necessary for towers over 25 feet due to the added
wire weight in tall towers.

Next, connect the three tower wires to the three wires exiting the back of the

generator. Take great care in making sure these wire connections are strong and have good
continuity. It is highly advisable to cover these wire connections with outdoor rated shrink
tubing to prevent possible wire shorts and to protect the wire connections from the outdoor
elements. Remember, poorly connected wires will negatively affect the power performance of
any wind turbine and will lead to wire connection failure!

Section 4.0: Attach Blade/Hub Assembly to Generator Shaft

Figure 6


Step 1: Use a Vise Grip to immobilize the generator shaft. Insert as many layers of cardboard as
necessary to prevent the “teeth” of the Vise Grips from denting or scratching the generator
shaft. See Picture A in Figure 6 above.

Step 2: Slide the Blade/Hub Assembly onto the shaft of the generator. The blades should curve
outward and away from the generator head. Put the stainless steel flat washer, lock washer and
nut onto the threaded shaft of the generator. With one hand on the Vise Grips to immobilize
the generator shaft, securely tighten the nut on the generator shaft to a torque of 180 lb-ft (245

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