TM 5-4320-300-14(1)Park the trailer in position for pumping, and place chock blocks against trail er wheels on downward side of slope to keep trailer from rolling.(2)Release the rear stand assemblies by pulling lock pins with the handles upright.Install lock pins so that thelowered stand assemblies will supportthe trailer.(3)Pull out lock pin and pull down front leg assembly until it locks. Uncouple safety chain assemblies and stow chain hooks inrings. Uncouple coupling. Disconnectintervehicle connector from towing vehicle and stow in holder. Rest tra iler on frontleg assembly.2-55
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