问题描述：2020年2月29日下午2点接到调试反馈，发动机内进尿素液，

Problem Description: 2020 at 14:00 on February 29 to debug feedback, aqueous urea into the engine, Hebei Asia for the urea injection conduit line 5 and a line 6, 8 are connected incorrectly is verified. Line 6 and line 8 color is blue, the three-way connection between the two; 5 line color is green, for the whole root canal. 6,8 single physical line for the whole root canal, a three-way intermediate pipe 5 is connected. Resulting urea and cooling line communication.

Description: February 29, 2020 at 2 p.m. received debugging feedback, the engine into the urea liquid, verified as Hebei Asia's urea injection line in the line 6, 8 and 5 connection errorcause. Line 6 and 8 are marked in blue, with a three-way connection between the two tubes, and line 5 color marked green for the whole tube. Single physical line 6, 8 for the whole pipe, line 5 in the middle for the three-way connection. Causes urea to be connected to the cooling lines.

Problem Description: at 2:00 p.m. on February 29, 2020, we received the feedback from the commissioning that the urea liquid was fed into the engine, which was verified to be caused by the wrong connection of pipes 6, 8 and 5 in the urea injection pipeline supplied by Hebei Yada. The color code of pipeline 6 and 8 is blue, and the two pipes are connected by tee; the color code of pipeline 5 is green, which is the whole pipe. Single physical pipeline 6, 8 is the whole pipe, and the middle of pipeline 5 is a tee connection. Make urea and cooling pipeline connected.