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Press, Volume LXXV, Issue 22877, 25 November 1939, Page 20

High-tension lines are kept at the peak of efficiency in Los Angeles, by a hose and ladder truck that would make many a fire department envious. On “wash day” the truck moves along the power line, raising the platform at the top of its 75-foot ladder to the level of the insulators, -which are then sprayed clean of corrosion -and dust. Its tanks * carry 910 gallons of special cleaning fluid, and - a three-cylinder pump throws a stream at 10001 b presr sure through a 3-inch hose. On each side of the truck is a container holding 150 feet of high-pressure hose. Rubber tyres, rubber pads on the. turret floor and pads under, the legs which brace the truck on the pavement furnish insulation to protect the crew ’ from shock. A driver and two workmen form the crew. The 27,0001 b truck is 47 feet long over all, and has a wheel base of 222 inches. It has its own suction hoses for quick re,loading, and is driven by a 125 horsepower engine.