Troubleshooting of Cylinder Cushion Faults

Cylinder flushing engine gasket is a common malfunction. The cylinder cushion can have many common forms of abnormal noise. Due to the varying degrees of washing away of the cylinder gasket, the resulting abnormal sound is different. Based on the red 120, three different sets of pulse type bulldozer engine cylinder gasket faults are displayed with troubleshooting methods.

One of the bulldozers in the car made a loud sound of "dang, dang" sound, and the first emitted a white smoke emission. After smoking, the engine suddenly caught fire, and suddenly there was a knocking sound on the accelerator. The stable noise disappeared, and if the accelerator was suddenly knocked repeatedly, there was still a knocking sound on the door. Close the tank for inspection and they found a strange noise in the VI cylinder. Suspect that the injector needle is eye-catching. Delete the normal results of the check. The sixth cylinder head was removed, and we found that the cylinder gasket burned smoke. The cylinder head bolts of the cylinder were originally tightened (with a torque of up to 250N · m), while the cylinder head and cylinder gasket were not compressed because there was a water blockage that was higher than the upper body level. Replace the cylinder gasket and get off the plane. After making a strange noise again, the installation of the water block was lost, and the engine was running normally.

Another phenomenon is the "throat, throat sound" of the engine when the bulldozer is idle, when the V-shaped cylinder shuts off the oil until it disappears and weakens the sound. Suspected to be caused by V causing cylinder idling by large oil companies, but unable to assist in small transfers, large and medium-sized throttle operation, abnormal sound is not obvious; The valve clearance is normal. To start the engine's fuel door, there was a "dang, dang" knocking sound, repeated throttle, and a five cylinder cushion in smoke. After inspection, it was found that the malfunction was caused by tank mat cleaning.

There is also a bulldozer, which is loaded with obvious noise, and the throttle and no-load of primary and secondary schools. Obvious abnormal noise; By repeatedly loading the application program, the sound is obvious, but the three and four adopt the gas cylinder between the cylinder heads. Exam display tank. 3, A tank that has been burned down. Replace the cylinder gasket and the fault has been resolved.

The Hong-120 bulldozer is equipped with a 6130 diesel engine (one cylinder, one cover). The occurrence of cylinder head gasket failures is relatively small, most of which are unnecessary due to the torque and sequence of cylinder head bolts (divided into 2-3 times) due to tightening.

Diesel generator set is a complete set of products, including diesel engine, generator, control parts, protection devices, etc. The overall inspection of exported products includes the following contents:

(1) Review of product technology and inspection data;

(2) Product specifications, models, and main structural dimensions;

(3) The overall appearance quality of the product;

(4) Unit performance: The main technical parameter indicators, unit operation adaptability, reliability and sensitivity of various automatic protection devices;

(5) Other projects specified in the contract or technical agreement.