November 2006
Part No. 833002 Rev A AL4000 Light Tower 31
DO NOT OPEN FIXTURES WHILE LIGHT CIRCUIT BREAKER
IS “ON”. ALLOW LAMP TO COOL BEFORE TOUCHING.
**TAKE EXTRA PRECAUTIONS WHEN TROUBLESHOOTING ELECTRICAL PROBLEMS**
A. Only use a voltmeter with two well-insulated pin probes rated for 600 volts.
B. Treat all conductors as potentially hot.
C. Proceed through circuits systematically, operating only one section at a time.
D. Before disconnecting ballast, turn off circuit breaker and wait 30 seconds for capacitor to
discharge.
E. If all the lights are out and all the ballasts are receiving power, suspect burned out power
cable.
TROUBLESHOOTING
IF YOU FEEL AN ELECTRIC SHOCK AT ANY TIME WHILE
OPERATING THIS UNIT, SHUT IT DOWN IMMEDIATELY! HAVE
THE UNIT INSPECTED BY A TRAINED ELECTRICIAN.
LIGHT FIXTURE TROUBLESHOOTING
TROUBLE POSSIBLE CAUSE REMEDY
18.Lamp flickers or goes out- c.Defective lamp c.Replace lamp
intermittent or cycling d.High spike ballast
d.Ballast produces high spike current.
Measure with oscilloscope. Replace
ballast as re
uired.
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