Analysis of the Reasons for MTU Mercedes Benz Diesel Engine Traveling Car

A trailing car usually refers to a flat car added due to the length of the cargo that does not bear the weight of over - sized or over - length cargo in the context of automobiles. The "hunting" phenomenon of a diesel generator set means that the rotational speed fluctuates regularly between fast and slow. This phenomenon is usually caused by air in the fuel supply system or an abnormal governor. The hunting of a diesel generator set is extremely harmful, so the cause of the hunting must be quickly identified to eliminate potential hazards!

MTU Mercedes - Benz diesel engines are manufactured by the world's top heavy - duty diesel engine manufacturing company and enjoy the highest reputation globally. Mercedes - Benz diesel generator sets are imported generator sets, with the advantages of durable quality and high popularity. Of course, the price is also quite high.

Analysis of the reasons why the MTU Mercedes - Benz diesel engine fails to start and ignite

Sometimes, we may encounter situations where the starter motor of the MTU Mercedes - Benz diesel engine rotates but the engine fails to ignite or the engine hunts. The main reasons are as follows: there is air in the fuel pipeline or there is no fuel in the fuel tank, so the fuel cannot enter the combustion chamber.

The MTU Mercedes - Benz diesel engine is equipped with an auxiliary fuel tank, which must ensure an adequate fuel supply (the normal oil level should be above 500L). The reason for ensuring sufficient fuel in the auxiliary fuel tank is that the diesel engine is supplied with fuel from the auxiliary fuel tank at the initial stage of startup. After the Mercedes - Benz diesel engine starts generating electricity, its auxiliary fuel pump starts to pump oil continuously on its own. Therefore, whether there is fuel in the auxiliary fuel tank before startup is the key factor determining whether the diesel engine can start smoothly.

Once it is found that the fuel level in the auxiliary fuel tank is gradually decreasing or there is no fuel, it can be confirmed that the check valve in the fuel system of the Mercedes - Benz diesel engine is not functioning properly. We must check the status of the check valve in the auxiliary fuel system to prevent the lack of fuel in the auxiliary fuel tank from affecting the normal startup and operation of the Mercedes - Benz diesel engine. If there is no fuel in the fuel coarse filter, it will also affect the normal startup of the diesel engine. At this time, the status of the fuel check valve below the coarse filter should be checked to ensure it is in good condition.

When choosing a Mercedes - Benz diesel generator set, the manufacturer should be carefully investigated to ensure the quality and after - sales service of the unit. The solutions to the hunting problem of the MTU Mercedes - Benz diesel engine, summarized by the experienced technicians of the diesel generator set manufacturer, are as follows:

1. No fuel in the auxiliary fuel tank

Find the cause of the fuel leakage in the auxiliary fuel tank and fix it. Then, turn on the main engine fuel pump and open the oil inlet shut - off valve above the auxiliary fuel tank to replenish fuel into the fuel tank, filling it as much as possible.

2. Air in the fuel system pipeline of the auxiliary diesel engine

First, check and confirm the fastening status and sealing performance of each interface in the fuel system pipeline of the auxiliary diesel engine. Then, carry out the exhaust work of the fuel system according to the following steps:

·Step 1: Turn on the main engine fuel pump and open the oil inlet valve above the auxiliary fuel tank. The main purpose is to enable the fuel system of the MTU Mercedes - Benz diesel engine to have a certain pressure from the main engine fuel pump, so that the air is compressed, and the exhaust effect through the MTU hand - operated pump is faster.

·Step 2: Loosen the exhaust plug above the fuel filter and use the hand - operated pump to exhaust until fuel comes out.

·Step 3: Loosen the hollow screw of the return pipe of the combined fuel pump and use the hand - operated pump to exhaust until fuel comes out.

Note: During the exhaust process, the main engine fuel pump must be turned on to allow the fuel system of the MTU Mercedes - Benz diesel engine to have a certain pressure of oil, which makes the exhaust faster. After all the air in each part of the diesel engine is exhausted, all the loosened exhaust components must be tightened properly, and a careful inspection should be carried out after startup to confirm that the engine is in good condition.

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