1. The track rail should connect the ground when it is working; and at the same time, the support legs should connect the ground, too. If the construction site is too soft, the ground should be covered by steel plate to prevent from tilting. 2. If the wind power is more than grade five, the pile machine should be stopped. And take the oil tank as the assistant support. It is necessary to add the wind cable rope to fix. 3. When the drill is working, it is forbidden to stop the drill at will to avoid of drill pipe sticking accident. This accident can bury the drill machine and can not be lifted. 4. When the drill rod drills into the ground, the movement of pile frame and the start of slewing mechanism are forbidden.
