What are the common issues with the National V J6P420?
1 Answers
The common issue with the National V J6L240 is frequent malfunctions in the SCR technology route. Below are the daily maintenance methods for the SCR system: 1. Regular inspection: Periodically check whether the nozzle valve needle closes tightly, inspect the urea pump's air pressure pipelines for faults, and check if the nozzle is cracked or damaged. These issues can lead to poor spray atomization, causing crystallization blockages. Since residual liquid remains in the urea pump and pipelines after the vehicle stops working, prolonged inactivity may result in crystallization or freezing. It is necessary to perform residual liquid drainage after the vehicle is turned off. 2. Regular cleaning: All urea pumps have filters or filter elements that must be cleaned or replaced regularly. Otherwise, prolonged use may cause blockages or damage, rendering the filtration ineffective.