When operating a backhoe loader, it's crucial to constantly monitor its running status. If any abnormalities occur, the cause should be identified promptly, and the backhoe loader addressed accordingly. Today, we'll focus on a key component of the backhoe loader-the chain.
**White smoke during exhaust:** This indicates poor fuel atomization and dripping, or insufficient fuel injection pressure. Inspect the fuel injector assembly and repair or replace the backhoe maneuver, readjusting the injection pressure until it's within the specified range. During initial diesel engine startup, some cylinders may experience unburned fuel; adjust the backhoe maneuver speed and load accordingly.
**Black smoke during exhaust:** If the smoke exceeds specified values, reduce the load and maintain it within a fixed range. This indicates uneven fuel supply to each cylinder; adjust the fuel injection pump; incorrect valve clearance; or poor valve sealing. These issues can lead to valve leakage and poor combustion. In such cases, adjust the valves promptly, inspect the sealing cone, and eliminate any defects. When fuel injection occurs, if the tilt angle is too small or the injection speed is too slow, some fuel will burn in the exhaust pipe. Adjusting the fuel injection is necessary. If the turbocharger's pressure seal rings are burned or worn, leaks will occur at the turbine's engagement points. Inspect or replace the pressure seal rings and tighten the bolts on the mating surfaces.
During exhaust, moisture condensation can occur. If the cylinder head cracks, coolant can enter the cylinder. In this case, the cylinder head needs to be replaced. These are some of the major problems that can occur with the fuel chain. Hopefully, you now understand these issues and can effectively address them.
