During the operation of the bulldozer, if the steering wheel is too heavy, it will bring great burden to the operator, seriously affecting work efficiency and operating experience. For second-hand dealers, understanding the problem of heavy bulldozer steering wheels and adjustment methods is also crucial for evaluating and selling second-hand equipment.
First, check the hydraulic system. The operation of the steering wheel is usually achieved by hydraulic power assistance. If there is a problem with the hydraulic system, the steering wheel is likely to become heavy. Check the hydraulic oil level to ensure that it is within the normal range. If the level is too low, it will lead to insufficient hydraulic power assistance. At this time, you can check it by checking the level mark on the hydraulic oil tank and add an appropriate amount of hydraulic oil if necessary. When purchasing a second-hand bulldozer, second-hand dealers should pay attention to the hydraulic oil level and quality. If the level is too low or the oil quality is poor, it may mean that there are potential problems with the equipment, which will affect its value.
The quality of hydraulic oil should not be ignored. If the hydraulic oil is contaminated or aged, it will affect the performance of the hydraulic system. The quality can be judged by observing the color and transparency of the hydraulic oil. If the oil becomes black, turbid or has an odor, the hydraulic oil may need to be replaced. When selling a used bulldozer, if a second-hand dealer finds a problem with the hydraulic oil, he can suggest that the buyer replace it in time to ensure the normal operation of the equipment.
At the same time, check the hydraulic pump and hydraulic valve. They are the core components of the hydraulic system. If they fail, the steering wheel will also become heavy. You can judge whether the hydraulic pump is working properly by checking the working pressure and flow of the hydraulic pump, as well as the opening and closing of the hydraulic valve. If there is a problem, the relevant parts need to be repaired or replaced in time. For second-hand dealers, if these parts are found to be faulty, they should consider the purchase price and explain the situation to the buyer truthfully when selling.
Secondly, adjust the steering wheel clearance. If the steering wheel clearance is too large or too small, it may make the steering wheel heavier. Find the steering wheel adjustment bolt, usually under the steering wheel or on the steering column. Use a wrench or screwdriver to adjust the bolt so that the steering wheel clearance is moderate. Refer to the bulldozer operating manual to determine the appropriate steering wheel clearance. When checking the second-hand bulldozer, second-hand dealers should pay attention to the steering wheel clearance. If it is not appropriate, they can adjust it before selling it to improve the operating performance of the equipment.
In addition, check the tire pressure. Insufficient tire pressure can make the bulldozer difficult to drive, which in turn makes the steering wheel heavy. Use a tire pressure gauge to measure the tire pressure and insert the probe into the tire valve to read the tire pressure value. If the tire pressure is insufficient, use an air compressor or pump to inflate it to normal pressure; if the pressure is too high, reduce the pressure by deflation. Second-hand dealers should ensure that the tire pressure of used bulldozers is normal, which not only improves the operability of the equipment, but also increases its attractiveness in the second-hand market.
In short, the problem of heavy bulldozer steering wheels can be solved by checking the hydraulic system, adjusting the steering wheel clearance, and checking the tire pressure. For second-hand dealers, understanding these problems and adjustment methods will help accurately assess the value of used equipment, provide better services to buyers, and promote the healthy development of the second-hand bulldozer market.