DOCUMENT 1025
REV. B
Instruction Manual
858 LED Series
Sizes 1, 2, 3, 4 and 5
10 Maintenance and Troubbleshooting
WARNING:
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| Remove Po wer Before Attempting Any Servicing. |
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10.1General
Work on electrical circuits should be done only by a qualified electrician with a working knowledge of airfield lighting circuits.
It is also assumed that the circuit is in proper working order from the isolation transformer secondary connector
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| WARNING: |
NOTICE |
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| Only use O EM replacement sign legend panels. The entire message |
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| element mu st be replaced per FAA AC |
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| proprietary process replacement panels meet the photommetric and |
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| wind loadinng requirements of the sign as certified to FAAA AC 150- |
5345-44J.
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