A lot has changed since light towers first appeared on construction sites nearly a half-century ago. They revolutionised the industry by allowing crews to work into the night on outdoor projects previously limited to daylight hours. The addition of trailers allowed light towers to be transported to virtually any jobsite creating opportunities across the industrial and commercial spectrums to include not only construction but mining, security and airport applications. However, increased usage brought problems. For example, as the sun came up, workers didn't realise light towers were left on adding operation hours to the engine and prematurely consuming the machines' life expectancy. Light towers were typically shut down without turning the lights off first, potentially damaging the generator being shut down under load. Light towers often ran out of fuel burning up the starter motor or fuel solenoid attempting to re-prime the diesel engine. In addition, insufficient warm-up before turning the lights on took a toll on the engine. Operating costs rose and serviceable life shrank.
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