Crawler bulldozer is a kind of construction machinery vehicle with flexible operation, flexible steering and fast driving speed. It is widely used in road construction, railway construction, construction engineering and other fields. Its main function is to bulldoze and level the ground. In order to ensure the long-term use of the bulldozer, daily maintenance is a very important task. If maintained properly, it can not only ensure the normal operation of the bulldozer, but also improve its service life. Let me tell you what are the precautions for daily maintenance of crawler bulldozers?
Maintenance of crawler bulldozers
1. Daily inspection
Before working every day, conduct a comprehensive inspection of the bulldozer, check the surroundings of the machine and the bottom of the equipment, whether there are loose nuts, screws, engine oil, coolant, etc., and check the condition of the working equipment and hydraulic system. Check working equipment, cylinders, connecting rods, hoses for cracks, excessive wear or play.
2. Maintain proper tension of the track
According to the standard clearance of different models, add butter to the oil inlet of the tensioning cylinder or discharge butter from the oil outlet to adjust the track tension. When the track pitch is extended to the point where a group of track joints must be disassembled, abnormal wear will also occur on the tooth surface of the transmission wheel and the joint surface of the pin sleeve. Turn over the pin sleeve and the pin sleeve, replace the excessively worn pin and pin sleeve, replace the track joint assembly, etc.
3. Lubrication
The lubrication of the bulldozers traveling mechanism is very important. Many roller bearings “burn out” and lead to scrapping because of oil leakage and not found in time.
It is generally believed that there may be oil leakage in the following 5 places: due to poor or damaged O-ring between the retaining ring and the shaft, oil leakage from the outer side of the retaining ring and the shaft; Oil leakage between the outer side of the ring and the roller; oil leakage from between the bush and the roller due to poor O-ring between the roller and the bush; The hole is damaged, oil leaks at the filler plug; due to bad O-rings, oil leaks between the cover and the roller. Therefore, you should pay attention to check the above parts at ordinary times, and add and replace them regularly according to the lubrication cycle of each part.
4. Scale treatment
Every 600 hours, the cooling system of the engine should be cleaned. In the process of dealing with scale, acidic detergent is usually used first, and then neutralized with alkaline water. A chemical reaction is used to convert insoluble scale into salt, which is expelled in the water. In addition, in order to improve the penetrating performance and dispersing performance of scaling, appropriate polyoxyethylene allyl ether can also be added within a certain range. The pickling agent is used below 65°C. For the preparation and use of cleaning agents, please refer to the relevant content in the maintenance manual.
Precautions for maintenance
1. In the case of rainy days and a lot of dust, in addition to strictly adhering to the regular maintenance procedures, pay special attention to the oil plugs in various parts to prevent water erosion; check whether there is mud and water in the final transmission device; pay attention Cleaning of filler ports, utensils, grease, etc.
2. When refueling, let the operator’s hands clean the oil drum, diesel tank, refueling port, tools, etc. When using the sump pump, be careful not to dislodge the sediment at the bottom.
3. If it is working continuously, the cooling water should be changed every 300 hours.
The above article summarizes the maintenance precautions of crawler bulldozers in detail. I hope it can help you. In order to ensure the long-term use of bulldozers, daily maintenance is a very important task. If maintained properly, it can not only ensure the normal operation of bulldozers, It can also improve its service life.
Post time: Jul-11-2023