Bulldozer trapped car self

When the Swamp crawler dozer in a great location moisture or rain in muddy sections were bulldozer operations, inspection easy trap car phenomenon. There are two ways to save themselves after the trap car.
(1) If the bulldozer on the ground to the front of the car is not too deep depression when the Hydrostatic truck Bulldozer, dozer manipulate the joystick, the use of hydraulic blade will drop from the machine head, so that the tail under pressure; then manipulate dozer lever, so Hydraulic lifting the blade, so that the nose dropped, the tail is reset (depending on the trap car space above process can be repeated operating conditions), and then hang backwards Ⅰ block bulldozers, appropriately increase the throttle, clutch master gear together, so bulldozers backwards a short distance (usually every rewind 5-10cm), then quickly separated from the main brake pedal and clutch lever. Repeated so many times, you can successfully be stuck out backwards Crawler tractor dozer.
(2) If the above method can not be trapped bulldozer out backwards when available rope is fixed at one end to a tree or post, the other end of the rope is fixed on one or both sides of the bulldozer caterpillar (if Only one side tracked stuck, you are stuck on a fixed rope crawler; if both sides are tracked and trapped in deep, then use two ropes fixed on both sides of the crawler), and then start the engine, hang backwards Ⅰ file (or a forward gear Ⅰ), slowly rotating tracks, make rope roll out of the track on top of the bulldozer.