Zhonglian vehicle-mounted pump Tianjin chassis EFI diesel engine suddenly flamed out and exhausted, but the hand pump was tight, but the high-pressure oil pipe was oily.

Normal. Before the first trial operation of the newly assembled diesel engine, diesel oil needs to be pumped into the fuel pipeline (high pressure oil circuit) by hand pump. Vent the air in the high-pressure oil pipe. When pumping oil by hand pump, oil is seen from the high-pressure oil pipe, and there is no bubble in the discharged oil, which indicates that the air in the high-pressure oil pipe has been exhausted, which meets the requirements of trial operation.