The extended service life of small rollers starts from the break-in period.

After the road equipment is purchased, maintenance is required, and this maintenance starts from the running-in period. The running-in period of the small road roller is an important link to ensure the normal operation of the small road roller, reduce the failure rate and prolong its service life.

At present, some users often ignore the special technical requirements of the running-in period of the new machine because of the tight construction period or the desire to obtain benefits as soon as possible, and more importantly, due to the lack of common sense in the use of road rollers. Some users even think that the manufacturer has a warranty period anyway, and the manufacturer is responsible for the maintenance of the machine when it is broken, so the machine is overloaded for a long time during the running-in period, resulting in early failure of the machine, which not only affects the normal use of the machine. , shorten the service life of the machine, and also affect the progress of the project because of the damage of the machine.

Needless to say, the maintenance of small walk-behind rollers has already begun from the running-in period, and should be given full attention. The requirements for the use and maintenance of the roller during the running-in period can be summarized as: strengthening training, reducing load, paying attention to inspection, and strengthening lubrication. Pay attention to and implement the maintenance and maintenance of the road roller during the running-in period as required, so as to reduce the occurrence of early failures, prolong the service life, improve the operation efficiency, and bring more benefits to the machine. Let’s take a look at the characteristics of the running-in period of the roller

1. Fast wear and tear

Due to the influence of factors such as processing, assembly and adjustment of new machine parts, the friction surface is rough, the contact area of ​​the mating surface is small, and the pressure bearing condition of the surface is uneven. During the operation of the machine, the concave and convex parts on the surface of the parts fit and rub against each other, and the metal chips that fall off continue to participate in the friction as abrasives, which further accelerates the wear of the mating surfaces of the parts. Therefore, during the running-in period, it is easy to cause the wear of parts (especially the mating surfaces), and the wear rate is fast. At this time, if overloaded, parts may be damaged, resulting in early failure.

2. Poor lubrication

Since the fitting clearance of the newly assembled parts is small, and due to assembly and other reasons, it is difficult to ensure the uniformity of the fitting clearance, and the lubricating oil (grease) is not easy to form a uniform oil film on the friction surface to prevent wear. As a result, the lubrication efficiency is reduced and the early abnormal wear of the parts is caused. In severe cases, the friction surface of the precision fit will be scratched or occluded, resulting in failure.

3. Loosening occurs

The newly machined and assembled parts have deviations in geometric shape and matching size. In the early stage of use, due to alternating loads such as shock and vibration, as well as the influence of factors such as heat and deformation, and excessive wear, it is easy to make the original parts. Tightened parts are loose.

4. Leakage occurs

Due to the loosening of parts, the influence of vibration and the heat of the machine, the sealing surface of the machine and the pipe joints will leak, and some defects such as casting and machining are difficult to find during assembly and debugging, but due to vibration and impact during the operation. The effect of this defect is exposed, and it is manifested as leakage (seepage) of oil (water). Therefore, leakage is prone to occur during the running-in period.

5. There are many mistakes in operation

Due to the lack of understanding of the structure and performance of the machine (especially new operators), it is easy to cause failures or even mechanical accidents due to operational errors.