Pay attention to the final drives of the excavator
Hydraulic excavators are mainly used for excavation work and rarely travel long distances. Most excavator training schools are therefore easy to ignore the maintenance of their lower walking bodies. However, in the event of a failure of the lower traveling body, considerable downtime and no minor repair costs are incurred. In order to reduce the loss of operation and repair costs caused by the shutdown, attention should be paid to the maintenance and inspection of the lower traveling body.
Hydraulic excavators are mainly used for excavation work and rarely travel motors long distances. Therefore, it is easy to ignore the maintenance of the lower walking body. However, in the event of a failure of the lower traveling body, considerable downtime and no minor repair costs are incurred. In order to reduce the loss of operation and repair costs caused by the shutdown, attention should be paid to the maintenance and inspection of the lower traveling body.
When cleaning the machine, the sludge on the lower final drive motor body should be cleaned at the same time. After the operation, will the operator clean the sludge on the lower traveling body while cleaning the cab? If sludge is attached to the lower traveling body. It is not possible to check the relevant parts. Therefore, please be aware that the sludge must be removed and the lower walking body inspected and maintained.
Is the bolt loose? Can the carrier roller and the roller cannot rotate? Is the carrier roller, the roller and the drive wheel leaking oil? If you ignore the above abnormal state, it will eventually lead to serious accidents. If the bolt is damaged and the related parts are damaged and the carrier roller or the roller is worn away, the maintenance cost will be greatly increased.
The adjustment of the track tension should be properly carried out according to the soil quality: the soil quality of different construction sites will vary. The track tension should be adjusted in conjunction with the soil to extend the life of the machine.
When the soil is soft, the soil and the rail links tend to adhere to the soil. Therefore, the track should be slightly looser to prevent the abnormal stress applied to the rail links due to the adhesion of the soil. When the construction site is spread over the pebbles, the tracks should be slightly looser so that the bending of the track shoes can be avoided when walking on the pebbles. When it is solid and flat, it is best to adjust the track slightly tighter. Adjusting the tension of the track: If the track is too tight, the walking speed and the running power will decrease. This not only causes a drop in work efficiency, but also causes abnormal wear due to excessive friction applied to the pin and bushing.
Conversely, if the track is too loose, the track rests loosely on the drive and carrier wheels, causing more wear or damage. Moreover, when the loose track sag is too large, contact with the frame may occur and the frame may be damaged. Thus, even if the reinforced lower traveling body is not properly adjusted, an unexpected failure may occur.
Maintenance methods to reduce wear: the sprocket wheel, the roller, the final drive motors wheel and the rail link, etc., during the long-term operation, there will be a certain degree of wear. However, depending on whether the daily inspection is carried out or not, there will be a large difference. Therefore, as long as it takes a little time to perform proper maintenance, the degree of wear can be well controlled.
excavator rental believes that if some of the carrier rollers and the roller are not working, it may cause the roller to wear off and may also cause the wear of the rail links. If you find a roller that cannot be operated, you must repair it immediately! In this way, other failures can be avoided.
If the vehicle is repeatedly walked on the inclined ground for a long time and suddenly turns, the side of the rail link will be in contact with the side faces of the final drives wheel and the guide wheel, thereby increasing the degree of wear. Therefore, walking and sudden steering in inclined areas should be avoided as much as possible. Straight line travel and large turns can effectively prevent wear.
Bolts and nuts should be inspected carefully: When the machine is working for a long time, the bolts and nuts will loosen due to vibration of the machine. In particular, the bolts and nuts on the lower walking body are easily affected. If the machine continues to run with the track shoe bolts loose, a gap will be created between the bolts and the track shoes, which will cause cracks in the track shoes. Moreover, the generation of clearances may also increase the bolt holes between the track and the rail links, resulting in inability to tighten and the serious consequences of having to change the track and rail links. Therefore, bolts and nuts should be inspected regularly and tightened to reduce unnecessary costs.
The following parts should be inspected and fastened: track shoe bolts; support wheels, carrier roller mounting bolts; drive wheel mounting bolts; walking pipe bolts, etc. You should also check the parts that are not to be maintained. https://www.spfinaldrives.com/