Automatic mixer truck is a common car on construction site. If it suddenly stalls during transportation, it will affect the operation process and the driver's mood. Therefore, the mixer driver must grasp the "first aid" method when the mixer stops. What are the common emergency methods for machinery?
1. Check the oil flow
After the automatic mixer turns off, first turn on the oil tank switch, remove the oil inlet pipe of the oil transfer pump, and check the oil flow. If the oil flow is intermittent, it indicates that there is a problem in the oil circuit. In the future, use the hand pump to discharge the air between them, unscrew the vent screw of the pump head, and tighten it after the bubbles disappear.
2. Check the fuel transfer pump piston and push rod
After confirming that the oil flow is normal, disassemble the oil pump cover plate to check whether the push rod is sensitive and whether the plunger has cracks. If everything is normal, test and start the diesel engine to work at a medium speed for 10 minutes. When the engine is still stalled, knock the large nut of the oil transfer pump and pay attention to the sound of the diesel engine. If the sound is abnormal, explain that the piston and push rod of the oil transfer pump are stuck and should be repaired and replaced in time.
3. Check nozzle atomization
Non atomization of the nozzle may also lead to flameout of the mixer. The nozzle assembly can be removed to view the open pressure and atomization. If there is no problem with the nozzle assembly, the experiment can be carried out by the oil wayside connection method. If the small concrete mixer still stalls, it should be the problem of the engine. Remove the fuel injector assembly, roll the crankshaft, and water is ejected, indicating that there are cracks in the cylinder head and cylinder block, and it is advocated to report to the manufacturer of the diesel engine.
We also have such a common problem when using the automatic mixer. In some working environments, the engine water temperature must be too high. As long as this happens, it will have a special impact on the equipment.