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4 shopping tips! Hand-Handed Tips on Choosing Used Excavators!
4 shopping tips! Hand-Handed Tips on Choosing Used Excavators!
At present, the used excavator market in China is becoming increasingly hot, and for buyers, the purchase of used excavators is indeed low pressure, low threshold, and fast return.
However, with the development of the used excavator market, the renovation technology is becoming more and more mature. After the appearance of many used excavators has been treated, it is difficult to simply identify the good or bad. Today, the expert will teach you how to quickly distinguish the good or the bad of "used excavators."
First: "Look"
Pay close attention to the door frame and the seal of the aircraft window whether there are traces of spray paint；Is the cab deformed from the side； Inspect the welding point of the frame under the back cover of the second-hand excavator, the original welding point is smooth and small, and the added welding point is rough and irregular。If there are the above three conditions, it means that the second-hand excavator has had an accident.
Second: "smell"
When testing on the site, we should see whether the engine leaks oil, whether the second-hand excavator is working normally with a lot of black smoke, whether there is an abnormal sound and whether it is holding air.
Check the rotating motor to see if it is spinning strongly and if there is a lot of noise when rotating. If there is noise, you need to further observe which part is making the noise, and then carefully observe whether there are gaps in the rotating chassis.
Secondly, we should also carefully observe the dispenser of the excavator. Since the function of the dispenser is mainly to control the various work actions, when purchasing a second cell phone test car, we must see whether the various working actions of the excavater are coherent and whether there are any pauses.
The test method is to dig up a bucket of soil and lift it to the highest point , observe whether there is internal leakage in each oil cylinder , these notes are very important when buying a second-hand car , so be sure to choose a car carefully .
Third: "Ask"
This is often overlooked, and we must ask more questions when shopping for our favorite machine. Don't feel trouble, because only by knowing the previous history of the equipment can you make a better choice, and also do a lot of research on the credit investigation and the soundness of after-sales service in the second-hand market.
Fourth: "Che"
Inspect the four-wheel drive belt during the field test . First , observe the driving wheel , guide wheel , supporting wheel , carrying wheel and whether the track is worn severely .
Secondly, check whether the chain is original. There is a sign on the chain. If this sign corresponds to the information of the machine, it means that the chain is Original. If it does not match, it proves that the chain has been replaced. The machine may be worn more severely, so buy with caution.
And finally check the two walking motors 。 , whether the speed is the same in the process of walking , if a fast and slow that proves there is a problem , the track and the various working wheels are carefully look at the car to see if the next row of support wheel wear seriously .
Because the cost of repairing the chassis is also high, check the electrical system, enter the computer system and check the motherboard. If you can see all the working conditions after entering the system, such as turn count, pressure, maintenance mode, etc., then prove that the computer board is normal
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