User's Guide _______________________________________________________________________
136 __________________________________________________________________ M210243en-A
Anemometer bearings:
1.
Loosen the hubnut (14) with fingers or a 10-mm tool and
remove the cup wheel (13).
2.
Remove the ball bearing assembly (12) by unscrewing it
counterclockwise (with a 10-mm tool).
3.
Insert a new bearing assembly (12) and tighten gently.
4.
Fasten the cup wheel to the sensor and tighten gently.
Vane bearings:
1.
Proceed as described in steps 1 and 2 above.
2.
Open the lock screw (11) of the assembly (10) and remove it.
3.
Remove the Seeger-ring (9) (with narrow point pliers).
4.
Remove the bearing assembly (8).
5.
Replace the bearings inside the housing with new ones.
6.
Assemble the sensor in the reverse work order.
Due to normal wear, it may become necessary to renew the direction
potentiometer or the anemometer electronics assembly.
1.
Remove the sensor housing parts.
2.
Open the body (1+6) by unscrewing it clockwise.
3.
To replace the potentiometer, proceed as follows:
a.
Pull the potentiometer PCB (2b) out from the sleeve (4).
b.
Unsolder the potentiometer wires from the PCB.
c.
Solder new potentiometer wires to the PCB.
d.
Push the PCB (2b) into the plastic sleeve (4) by pressing
the sleeve sides. Note the guide holes.
4.
To replace the reed-switch PCB, proceed as follows:
a.
Pull out the retainer flange (3) and the reed-switch PCB
(2b).
b.
Unsolder the old wires and solder new ones for the PCB.
c.
Push the PCB into the tube of the casing (1).
d.
Fit the flat wire to the groove at the casing wall and insert
the retainer flange. Make sure that the flat wire is pressed
tightly against the casing wall.
