The engine is the heart of the excavator. If the engine cannot start, the entire excavator will not be able to work because there is no power source. And how to conduct a simple check on the engine that cannot start the car and reawaken the powerful power of the engine?
The first step is to check the circuit
First, the editor recommends checking the circuit. If a circuit fault prevents the vehicle from starting, the main problem may be that there is no response when the ignition switch is turned on, or the starting motor speed is too low, making the excavator feel weak.
Solution:
First check the battery pile head, clean the battery pile head, and then tighten the screws on the pile head. If possible, you can use a voltmeter to measure the battery voltage.
The second step of oil line inspection
If the circuit inspection is completed and no relevant faults are found, the editor recommends that you then check the engine oil line. If there is a problem with the oil circuit, you will hear the starter motor turning very powerfully when you turn the starter key, and the engine will make a normal mechanical friction sound.
Solution:
This can be checked from three aspects: whether there is sufficient fuel; whether there is water in the oil-water separator; and whether the engine exhausts air.
First check whether there is oil in the fuel tank. I won’t go into more detail on this issue. Secondly, many engine owners are not used to draining the oil-water separator every day. If the quality of the oil used is not high, the diesel may not start due to excessive moisture. Therefore, it is necessary to unscrew the water drain bolt at the bottom of the oil-water separator in time to release the water. This should be done for every oil-water separator. Finally, let me talk about the need to bleed the air in time. Most excavator hand oil pumps are installed above the oil-water separator. Loosen the bleed bolt next to the hand oil pump, press the hand oil pump with your hand until all the bleed bolt comes out is diesel, and then bleed the air. Tighten the bolts to complete the air venting work.
The third step is to check for mechanical failure
If after inspection it is found that the electrical circuit and oil circuit are normal, then you should pay attention. It is very likely that the engine has a mechanical failure.
Solution:
The chance of mechanical failure of a diesel engine is small, but it is not ruled out that cylinder pulling, burning of tiles, or even cylinder tampering cannot be ruled out. If it is the cause of mechanical failure, it is recommended to directly contact professional maintenance personnel for repair!
Through the above three-step simple engine judgment method, general engine faults can be easily judged and solved. Other complex problems still require inspection and repair by maintenance personnel with professional knowledge to ensure that the engine can operate in the best working condition and the equipment operates reliably and efficiently.
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Post time: Sep-24-2024