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Figure 2: U-Bolt installation
Loosely screw on the nuts on the ends of the U-bolts. You will tighten these
later during final mounting. Final assembly is shown in Figure 3.
Figure 3: U-Bolts and nuts installed
The plate and U-Bolts are not yet needed at this stage but doing this now may
help avoid damaging wind vane and wind speed cups later on.
5.2.2 Install wind vane
Push the wind vane onto the shaft on the bottom of the sensor, until it stops
moving further, as shown in figure 4.
Tighten the set screw, with a Philips screw driver (size PH0), until the wind
vane cannot be removed from the axle, as shown in figure 4. Make sure the
wind vane spin freely. The wind vane’s movement has a small amount of
friction, which is helpful in providing steady wind direction measurements.