When it works, first should put a clean diesel pump in the middle of the diesel bucket, does not allow empty load operation. Pay attention to the load capacity of the bucket when the pump is running, do not exceed the load capacity line. The pump is strictly prohibited pumping gasoline, alcohol, and other flammable liquids. Do not change the anode and cathode of the battery clamp. It can not work for more than 30 minutes. After each work time, it needs 20 minutes to have a break. It can not be no-load operation and dry pumping.