1. It is not suitable for refueling gasoline with low ignition point, alcohol, liquefied gas and high viscosity engine oil. 2. Before use, please confirm whether the power supply matches the voltage of the oil pump. 3. The oil pump power supply is divided into (+) (one) poles, the red line is the positive pole, otherwise the oil pump reverses, No oil. 4. The oil inlet and outlet pipes are shown by the arrows, and the oil inlet pipes and joints must not leak to ensure the suction. 5. Remember to install a matching filter sn on the oil inlet pipe to avoid hard debris being sucked into the pump chamber and damaging the pump core. The s should always remove the dirt on the surface of the filter sn, otherwise the filter sn will be blocked and the flow will be reduced and the pump will be damaged. damage., Manufacturer: KXJQBM