Every season when the repair shop will launch some free basic test items to help you check the status of road sweeping vehicles, and almost 100% of the manufacturers will provide sweeper chassis check this item, do not underestimate sweeper chassis check this The project needs to know whether the road sweeper chassis system is good or bad is related to whether or not our road sweeper truck can run normally. In the used-car market, the quality of the sweeper truck is judged to be good or bad, and the sweeper chassis is the most intuitive judgment standard. one. So today we will talk about the maintenance knowledge of the chassis of the road sweeper.

First of all, let's talk about the damage to the chassis of the sweeper car for those reasons!

First, drag the bottom, foreign objects hit the sweeping car chassis

Really, the speed of domestic road construction really made me surprised. Today, the road that has just been repaired will be “opened up again” tomorrow, and when the road is repaired, it will produce more stones or pits in most cases. At this time, our car's inadvertent attention when driving on such a road will allow the big stones or other protruding objects to make intimate contact with the sweeper chassis of the sweeper, which is what we often say .

Each road sweeper has its own approach and departure angles and passing angles, beyond which the value will be towed;

Due to the uncertainty of the dragging bottom, it is easy to cause damage to the parts located in the chassis part of the sweeper, such as: crushing of the catalytic converter housing, cracking of the engine oil pan, cracking of the transmission housing, or suspension system Deformation, etc., these problems will cause a very fatal injury to your car.

Second, corrosion

The environment is really getting worse and worse, and even the rain is acid rain. Under such circumstances, our road sweepers may increase the possibility of damage. Because the sweeper chassis is often in contact with sewage, greasy substances and other substances, and the chemical components in these substances will slowly corrode the parts of the sweeper chassis and the sweeper chassis, so we need to be more protective against the corrosion of the sweeper chassis. note.

In addition to the just mentioned that rain and mud will threaten to erode the chassis of the sweeping vehicle, the snow melting agent and seawater used to melt the snow in winter can corrode our sweeper chassis, especially seawater. If your own car goes to the sea, you must not Driving the car into the sea, the seawater will be very corrosive to the sweeper chassis. If you do not pay attention to the contact between the sweeper chassis and seawater, flush the sweeper chassis with plenty of fresh water or a neutral detergent as soon as possible.

Third, how to avoid

Generally, in order to prevent the occurrence of damage to the chassis of the sweeper vehicle, the repair shop will advise the driver to install the engine guard plate to the vehicle or to sweep the chassis of the sweeper vehicle with the sweeper chassis commonly known as “sweeping the chassis of the sweeper chassis”. protection. The suggestion of installing engine guards is highly recommended because some economical cars will not install protective devices below the engine and transmission in order to save costs. This will allow the engine and transmission to come in direct contact with the road surface. With the engine guard installed, it is possible to artificially protect the engine and gearbox and the important parts on the underbody part of the front sweeper so that even if the undercarriage really occurs, it will come in contact with the guard plate instead of Can damage important parts.

"Swept vehicle chassis armoring" is the road vehicle chassis protection technology in recent years. A layer of 2~4mm thick elastic sealing material is sprayed under the sweeper chassis of the sweeper. The sweeper chassis armor can effectively protect the sweeper chassis against the road sweeper and prevent slight bottom friction. Prevent the corrosion of acid, alkali and salt on the sweeper chassis; prevent the loosening of the sweeper chassis screws; reduce the noise conduction during driving, increase the sense of quiet driving; prevent the heat conduction of the sweeper chassis iron plate, make the driver's indoor winter Warm and cool in summer. The measures for protecting the chassis of the two road sweepers mentioned earlier have been used in my personal car. The engine guard plate is a very useful measure, especially for those models with soft suspension springs. When driving at high speeds, the pits on the road surface pass through a soft spring, and the amount of compression will reach the limit, causing the important parts such as the engine to come into contact with the ground object to cause damage.

As for the “sweeping vehicle chassis armored” measure, I also recommend that you use it. Although it may not be possible to see an immediate situation, it is always good to be prepared.

Knowledge extension:

1) How to choose a qualified engine guard

There are four types of engine protection board for sweeping vehicles: hard plastic, resin, steel and aluminum alloy. Different material types of protection board, its characteristics are essentially different, I believe you read the following description you will know what kind of engine protection board.

A. Hard plastic, resin protection board.

The price is relatively cheap, and the production process is simple, but it should be noted that this type of material is more likely to be broken in the winter, and it is vulnerable to damage and can not be repaired after long-term protection.

Advantages: light weight, low price

Disadvantages: easy to damage

2. Steel or manganese alloy protection board.

However, it should be noted that when choosing this kind of protection board, it is the design of the style and the matching of the car and the quality of the supporting accessories. We must use the products of the regular manufacturers. The guard plate of this material can protect the important parts of the engine and the sweeper chassis of the largest Chengdu, but the disadvantage is heavy weight.

Advantages: strong impact resistance

Disadvantages: weight

Three. Aluminum alloy protection board.

It should be noted that many beauty shops push for this product. The fancy is the high profit behind its high price, but its hardness is far inferior to the steel protection plate. It is difficult to repair the damage, and the alloy material is extremely complex and difficult to determine its characteristics, but its characteristics are light weight.

Advantages: light weight

Disadvantages: high prices, low material strength

The engine guard is very simple to install. Just buy a guard plate that fits your sweeper model and you can install it within 10 minutes, even if you can complete the operation yourself.

2) The price of armored chassis on the road sweeper in the market is not the same. How dazzled?

At present, the price of sweeper chassis armor on the market is not uniform, ranging from a few hundred yuan to a thousand dollars, but basically all the materials used in the places where sweeper chassis armoring can be carried out are basically similar, but are only manufacturers. Different. Due to the lack of relevant system management, the price of the chassis armored sweeper is very high. Therefore, you must pay attention when choosing the construction site. Generally, the price of a relatively good sweeper chassis armor is around 500-800 yuan. The brands currently used in the market include Henkel in Germany and 3M in the United States.

In addition, if you decide to carry out sweeper chassis armoring, please be sure to look at the equipment in the construction area. The construction of the “sweeping vehicle chassis armored” is quite complicated. First of all, we must carefully remove the dirt from the chassis of the road sweeper, use a special detergent to completely remove the asphalt, oil, etc., and dry it. Any neglect of these treatments will affect the firmness of the “armor”. Then the drive shaft and other rotating parts, exhaust pipes and other parts requiring heat dissipation are sealed with adhesive tape or waste newspapers and sprayed. In order to avoid accidental damage, affect their normal operation, and to remove these tapes or newspapers after construction is completed to avoid danger.

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