Belfort AWOS, Руководство по обслуживанию

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BELFORT
INSTRUMENT
Proprietary Information
10.4 W
IND
S
PEED
S
ENSOR AND
W
IND
C
UPS
R
EMOVAL INSTRUCTIONS
SAFETY PRECAUTIONS
1. Do not perform outdoor Belfort AWOS maintenance tasks during a thunderstorm.
2. Use extreme caution when lowering the tilt-over tower whenever ice or snow has accumulated
on the tower cross arm or the sensors. The extra weight may cause the tower to fall over
rapidly.
TOOLS REQUIRED
1. Belfort AWOS Hand Held Display Unit (HHDU)
2. 3 mm Allen wrench
3. Socket wrench and 13/16" socket
4. Standard screw driver
Removal Procedures: Refer to figure 8.
1. At the DATU display terminal, issue a NOTAM advisory to alert users that the Belfort
AWOS system is being serviced prior to beginning investigation of this fault. The NOTAM
to be issued is "
Belfort AWOS system being serviced, do not use current weather data
outputs ." Verify that this NOTAM advisory is displayed on the operator screen prior to
beginning this maintenance tasks. Refer to the "Belfort AWOS Operator Manual" for
instructions on how to enter and delete NOTAMs.
2. Remove tower-securing bolts and tilt the tower until the cross arm is at a comfortable
working height to access the Wind Speed Sensor. Secure the tower in that position by tying
the attached tower hold-down rope to the base of the Belfort AWOS tower as shown in
Figure 2.
3. Power down the power enclosure by opening the AC and DC circuit breakers.
4. Remove the three (3) hole cap plugs in the bottom of the cross arm that cover the
mounting screw access holes.
5. Remove and save the mounting screws.
6. Remove the wind speed sensor from the Cross Arm.
7. Loosen and disconnect the wind speed connector from the mating connector.
8. Inspect the sensor cable and connector for damage, corrosion or bent or broken pins.
Replace damaged cable if needed.
9. Contact Belfort Instrument Co. customer support to make arrangements for replacement of
defective components.
10. Refer to the Belfort AWOS Installation and Checkout manual Section 9.0 for installation
and checkout of replacement parts.
11. Document component replacement on the FAA form 6030-1.
12. If required, the wind cups can be replaced with the sensor on or off the cross arm if the
tower is lowered.
13. Use the screw driver to loosen the screw on the top of the tri-cup assembly.
14. Slide the old tri-cup assembly off of the end of the sensor.
15. Install the new tri-cup assembly onto the end of the sensor.