There are two problems. First, there is an air leak, such as an air leak in the main air intake pipe or in the booster pump. Another situation is that the check valve in the vacuum pump pipeline is blocked due to dirt. It is recommended to check the vehicle's main air intake hose and check for an air leak in the vacuum booster pump. In addition, pay attention to cleaning the suction pipe interface of the main air inlet pipe. There should be no dirt that affects the vacuum level. Additionally, make sure the one-way valve in the suction pipe is working well, and the problem may basically occur. be resolved.
Installation method of brushless motor vacuum pump head for agricultural vehicles
Professor Shi Huiyan
Response time 10 minutes
Question
Consultation file · Answerse on 03/11/2021
Installation method of brushless motor vacuum pump head for agricultural vehicles
Hello, agricultural vehicles without The installation method of the brush motor vacuum pump head is as follows: the foundation should be kept level under the vacuum pump base. It is recommended to pad the four corners of the base with shock-absorbing rubber or install it with it. Bolts to ensure smooth operation of the vacuum pump and low vibration. .The connecting pipe between the vacuum pump and the system must be reliably sealed. For small vacuum pumps, metal pipes can be used to connect the seals and oil-resistant rubber can be used. For small vacuum pumps, vacuum hoses can be used. connect. The pipe diameter should not be smaller than the suction diameter of the vacuum pump, and the pipe should beshort and fewer elbows. (When welding the pipeline, the welding slag in the pipeline should be removed, and the welding slag is strictly prohibited from entering the cavity of the vacuum pump.) In the connecting pipeline, the user can install a valve and a pressure gauge above the vacuum pump. air inlet to check the ultimate pressure of the vacuum pump at any time. .Connect the power supply in accordance with the motor nameplate, connect the ground wire and install fuses and thermal relays of appropriate specifications. .When the vacuum pump is powered on for trial operation, the motor belt must be removed and the vacuum pump must be rotated in the specified direction before it can be used to prevent the vacuum pump from reversing fuel injection. (Turn in the direction indicated by the protective cover). For vacuum pumps with cooling watert, connect the cooling water in accordance with regulations. .If a solenoid valve is installed at the vacuum pump port, the valve and the vacuum pump must work at the same time. .When the gas discharged from the vacuum pump affects the working environment, a pipe can be installed at the exhaust port to discharge it or an oil mist filter can be installed.