A railroad tie replacing device (10) including a support frame (11) on rollers(22) for movement over a series of parallel railroad tracks (28) supported by railroad ties(29). A main piston or cylinder (15) is positioned such that the stroke of the piston rodis horizontally toward and away from the rails. A gripping mechanism (23) is arranged onthe main cylinder rod and is capable of gripping a railroad support tie to be replaced.The main cylinder and an attached spacer (24) for securing the invention to the rail duringoperation are lowered over the rail by a lift cylinder (18). Upon operation, the grippersare closed over a tie to be removed and the main cylinder is activated. The outwardstroke of the main cylinder piston rod with appended gripper mechanisms pulls the tiefrom beneath the rails.
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