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BELFORT
INSTRUMENT
Proprietary Information
15.
Locate the True North Monument. Using a stepladder, sight along the folded tower section to
assure it points to the True North Monument. If not, then repeat steps 9 thru 13.
16.
Rotate the direction vane around the full 360
o’s
of rotation and verify it is free to turn with no
rough spots in rotation. Noise or sudden rotational resistance indicates worn bearings and the
unit must be replaced.
Follow the Belfort AWOS System Component Failure Instructions
in Section 5.10.
Then from the 360
o
position, rotate the direction vane to cause the direction
value to increment up from 0º’s. Monitor the direction value on the HHDU as the vane is
rotated slowly. Confirm that values increment from 0 and values are displayed within every
10º range 0 to 10, 10 to 20, 20 to 30, etc, up to 350 to 360º are displayed. If any groups of
values are not displayed, then a direction segment is out. If a segment is out or the sensor is
not reporting correct direction,
Follow the Belfort AWOS System Component Failure
Instructions in Section 5.10.
17.
Untie the rope and SLOWLY erect the tower to the vertical position and secure it by installing
and tighten-up (DO NOT OVER TIGHTEN) the three (3) tower-securing bolts. NOTE: Be
careful to avoid pinching the wires on the inside of the hinged tower section when raising the
tower.
18.
Toggle the “ALERT MESSAGE” switch 4 times to return the unit to service. Push the
“refresh” button on the HHDU to make sure the “ALERT MESSAGE” is gone and that the
system begins reporting weather data as expected.
19.
If all maintenance tasks are complete, issue another NOTAM advising users that “
Belfort
AWOS
maintenance activities were completed, system has been returned to normal
operation
.” The expiration date and time of this NOTAM should coincide with the same
expiration date and time of the previous advisory NOTAM that was issued to put the system
in the maintenance mode. Verify that this NOTAM advisory is correctly displayed on the
operator screen. Refer to the
"Belfort AWOS Operator Manual"
for instructions on how to
enter and delete NOTAMs
.
Содержание AWOS
Страница 17: ... 14 BELFORT INSTRUMENT Proprietary Information Figure 2a Securing the Tower for Maintenance ...
Страница 49: ... 46 BELFORT INSTRUMENT Proprietary Information Figure 9 Temperature Humidity Sensor Removal ...
Страница 51: ... 48 BELFORT INSTRUMENT Proprietary Information Figure 10 Visibility Sensor Removal ...
Страница 60: ...BELFORT INSTRUMENT Proprietary Information Appendix A Belfort AWOS Maintenance Forms ...
Страница 66: ...BELFORT INSTRUMENT Proprietary Information This page intentionally left blank ...
Страница 71: ...BELFORT INSTRUMENT Proprietary Information Appendix B Belfort AWOS Tri Annual Annual 5 Year Maintenance Plan ...
Страница 74: ...BELFORT INSTRUMENT Proprietary Information Appendix C UHF Transceiver Specifications ...
Страница 76: ...BELFORT INSTRUMENT Proprietary Information Appendix D Standard Unicom Radio ICOM A110 VHF Radio Specifications ...
Страница 88: ...BELFORT INSTRUMENT Proprietary Information Appendix F DCP Site Configuration Procedure ...
Страница 93: ...BELFORT INSTRUMENT Proprietary Information Appendix G Belfort AWOS Atomic Clock Verification Procedure ...