When buying a second-hand excavator, the buyer is most afraid of encountering an accident car. The fuselage structure of a vehicle that has experienced serious incidents has undergone severe deformation, and even after correction, there may still be many hidden injuries, and the probability of occurrence of problems during future operations is very high. Therefore, Kobelco excavator parts supplier Chuanna deliberately summarized some methods of identifying incidents to help everyone avoid this trap.

First of all, let me explain that the incidents reviewed here refer to serious incidents that have caused the excavator to deform, such as severe collisions and rollovers. General subtle collisions and rollovers are not included in this list.

Severe incidents occurred on the excavator, and the general appearance, paint, glass, interior, and important structural parts would leave traces of deformation. Even if the correction method is superb, a few clues can be found. Therefore, Kobelco excavator parts supplier Chuanna believes that the identification of accidental vehicles should also focus on the appearance, paint, glass, interior, and structural parts.

1. Check the driving room

The control room should be the first to deal with stone smashing and rolling incidents. If the paint on the top and side of the control is severely dropped, or if the paint has been painted from scratch, then there is a suspicion of a car accident. The original steering room stamping parts have more arcs and complex structures, and the later sheet metal correction is more difficult. The corrected steering room can be seen by looking at the top a few more times.

The cab damaged in the accident

If the damage to the control room is severe, the four-sided glass and the control interior must also be damaged and replaced. When the glass on the four sides of the control room and the production date of the vehicle are not the same or the difference between the new and old interior is particularly significant, you need to pay attention to the judgment.

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Original car accident-free cab

If the driving room of the incident car does not have the correct conditions, and the driving of the whole vehicle is relatively high, innovators will generally replace the driving room with the incident car. But regardless of whether the replacement is the old and new control room, the clues are very simple.

(1) The paint color is not right with the car body. The paint color of the car body will definitely change during the use of the excavator. If you change to a new control room, the paint color will definitely be different.

(2) The date of the driving room glass is the same but not consistent with the factory date of the whole vehicle: the new driving room glass is generally used in the same batch, so the production date will be the same, but there must be a big difference from the actual factory date of the whole machine , Keep an eye on it and make a simple judgment.

2. Check the big and small arms and frame

When the excavator has a rollover or a rollover incident, the external frame, the large and small arms and other parts are simply deformed severely under the action of external forces. After adjusting the excavator, stand at the main control valve and you can see whether the big and small arms have a skewed angle.

Severe rollover, deformation, misalignment, or damage of components such as the frame and hydraulic system engine. At this time, you need to check whether the appearance parts such as the X frame, the large and small arms, the control room, and the side doors have painted marks and whether the connection of the various parts is too large or Uneven.

3. View anti-collision beams and side beams

The anti-collision beam and the side beam are the outermost protective devices of the excavator. When an accident occurs, the anti-collision beam and the side beam are the simplest parts to be damaged. If the anti-collision beams and the side beams are "broken", this car must be an accidental car.

Edge beam damaged in the accident

How to check whether the anti-collision beam and side beam have been injured? In short, it is: one from a distance and two closer

A long-range view: When looking at a second-hand excavator, first check whether the anti-collision beams and side beams are smooth 10 meters away, and check whether the reflectance of the paint surface has changed, if it is the side beams, smoothness and reflections that have been corrected by bumping Traces can be revealed in terms of degree.

Accident-free excavator gaps are more even

Two closer look: Regarding popular models of excavators, there are brand-new side beams and anti-collision beams for sale in the market. This kind of demand is carefully investigated nearby. First look at some gaps between the side beams and the upper car body cover. The gaps between the car body that have not experienced an incident must be uniform and will not show significant changes in width. Secondly, look at whether there are welds on the inner side of the side beams. The modified side beams are generally only treated on the outside. The cost and difficulty of the inner processing are too high, and ordinary repairers will not do this. This is also left to us. A path to view.

4. View X frame

If an excavator has had a severe rollover incident, then the X frame of this car is likely to have been deformed. The cost of the X frame modification and replacement is very high, and the traces after timely correction are also more significant.

If the degree of deformation of the X frame does not affect the application, innovators will generally use "mud mud" or spray paint to cover up. This kind of need to clean the mud and check it out quickly.

If the deformation is relatively severe but has certain correction value equipment, innovators will generally correct it. After the correction, the appearance of the X frame will be more obvious, and the edges of some deformed parts of the X frame will also show wavy correction marks.

In the event of an accident, the hatch on the same side is easily damaged

5. View the hatch

The hatch of the excavator is a vulnerable part, and it will be bumped or bumped in careless daily construction. It is normal to make a sheet metal correction or replacement for the sake of beauty, so this cannot be used as a basis for directly judging whether an excavator is an accident vehicle , But it can be used as an indirect "foundation."

When you suspect that this is an accident car through other methods, you can pass through the door to assist in the judgment. For example, you find that all the glass on one side of the control room has been replaced, and the side beams have been corrected. At the same time, you have verified that the hatch on the same side has been corrected. Chuanna, the supplier of Kobelco excavator parts, feels that at this moment, it can be concluded that an incident has occurred.