How to Troubleshoot Self Propelled Concrete Mixer

The application of self propelled concrete mixer is widely used in construction projects. Under normal circumstances, there are very few abnormal noises in the process of driving self-loading cement mixer trucks. Once abnormal noise occurs, there may be a problem with the self loading concrete mixer.

When the diesel engine suddenly changes the load, a rapid and dull knocking sound can be clearly heard around the crankcase, and it changes sharply with the increase of the load or speed of self loading concrete mixer truck.

The sound is more distinct when the tanker lid is opened, but less pronounced when there is no load. This is due to the excessive wear of the connecting rod, resulting in an excessive clearance between the connecting rod and the crankshaft connecting rod journal. If the oil in a cylinder of the diesel engine is cut off and the abnormal noise disappears immediately, it proves that the connecting rod of the cylinder is rattling.

If the engine of the self loading concrete mixer is running at a high speed, there is a muffled sound of "clack, clap", and it is particularly serious when the driver suddenly reduces the throttle. This is caused by the excessive axial clearance of the main bearing.

When the diesel engine of the concrete mixer truck self loading has a heavy and continuous knocking sound at the lower part of its crankcase that the sound is clearly discernible at low speed, and it is more obvious at heavy load, is caused by excessive crankshaft main shaft clearance.

If you hear a "quack, quack, quack" sound at the same part of the self-loading cement mixer, slightly in the direction of the crankshaft, it is the percussion sound caused by the twisting of the connecting rod causing it to shake during work. If you buy concrete mixer truck self loading from Haomei Machinery, we support online technical support all the time.

Original Source: https://www.self-loading-mixer.com/a/how-to-troubleshoot-self-propelled-concrete-mixer.html

Tags: self loading concrete mixer truck

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