Section 2. Hardware InstallationThe wind vane can be easily damaged if dropped orbent. Leave the wind vane in the protective cardboardsleeve until it’s ready to be installed.WARNING2. Remove the alignment screw at the base of the 034B-ET (Figure 2.4-5).Insert the 034B into the 034B Mounting Shaft. Align the hole in the shaftwith that in the 034B base and replace the screw. Do not overtighten thealignment screw. Do not remove the shoulder screw at this time.3. Insert the mounting shaft through the U-Bolt on the sensor arm. Adjustthe mounting shaft so that the cable and connector coming out the end ofthe sensor arm can plug easily into the mating connector on the 034B.Lightly tighten up the U-bolt clamp nuts. See Figure 2.4-4.4. See Figure 2.4-5 for the alignment sticker on the 034B. Align the arrowon this sticker with True South. The counterweight will also be pointingdue south. Make sure the sensor cable is not being pinched by the U-bolt.Tighten up the U-bolt to hold the sensor firmly. Plug the cable into themating connector on the sensor. Plug must be fully seated and lockingring turned fully clockwise.5. Install the wind vane using the Allen wrench supplied with the vane.Wind vane should be perpendicular to the crossarm. Put the MetOnesticker over the wind vane Allen screw opening.6. Remove and keep the shoulder screw. The shoulder screw will be neededfor replacing bearings and/or potentiometer. The wind vane and cupsshould turn freely.2.4.5 Gill WindSonic 2-D Ultrasonic Wind Sensor (Wind SensorOption –GW)2.4.5.1 Changing the JumperJumper is set at the factory if Gill WindSonic is ordered with thestation.NOTEWhen the WindSonic1-ET is added to the ET107, a jumper setting must bechanged. The procedure to change the jumper follows:1. Remove the cover of the enclosure.2. Disconnect the 10588 ribbon cable from the CS I/O port.3. Use a Philips screwdriver to loosen the four screws shown in Figure 2.4-6.2-13