Proper use of oil pump:

When using the maintenance oil pump, the following points should be noted: (2) the thickness of gasket at the joint between the oil pump and the injection pump body shall be in accordance with the provisions and shall not be too thick, otherwise it will affect the piston stroke and reduce the oil transfer. (3) when the hand pump is not in use, the handle should be tightened to make the valve face on the hand pump press down the rubber washer to prevent air from entering the oil path. Affecting the normal operation of the engine.