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1. INSPECT LIGHT CONTROL RHEOSTAT
(a) Turn the rheostat knob OFF, and check that there is no continuity between terminals 5 and 4 (rheostat knob turned fully counterclockwise).
(b) Gradually turn rheostat knob from the dark side to bright side, and check that there is continuity between terminals 5 and 4 (rheostat knob turned clockwise).
If operation is not as specified, replace the rheostat.
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