Due to the situation of funds and vehicles, many owners will choose to buy second-hand trucks. However, the greatest concern during the purchase process is the quality of the vehicle body. What kind of second-hand trucks are considered to be worth the purchase? 1, it is best to use between 2 to 4 years of age The price of second-hand trucks in two to four years is obviously different from that of new ones, and the vehicles have already gone through the running-in period and are in a good use period. As long as the original owner performs regular maintenance on time, basically no problem, but doing some related tests is still necessary. Personal advice is best to buy a maintenance record, according to the original owner of the vehicle maintenance rules continue to maintain, can effectively maintain vehicle performance. 2, optimistic about the mileage of second-hand trucks. The mileage and travel time seriously affect the life of trucks. General trucks in the form of 150,000 -200,000 kilometers after the car's performance will be significantly reduced, maintenance cycle and costs will be significantly increased, so we must look at the mileage of trucks, generally can be read through the odometer, However, the mileage of some foreign imported cars is calculated in miles. Attention should be paid to switching. In the course of determining the mileage, you can use the owner's frequency of use and use of time and tire wear to do a reference. 3, the overall inspection of trucks. When selecting second-hand cargoes, it is first necessary to check whether the various ancillary facilities for cargo loading can work properly. Such as mirrors, turn signals, and air conditioning equipment, these are basic, and the most important are the following: 1. Damage to the vehicle body: Observe carefully whether the joint is bent, whether it is of a different size, etc. If this happens, it proves that the car has experienced an accident and has undergone major maintenance; 2. Corrosion degree of the body: If the truck window and joints are seriously rusted, it means the car is older; 3. Positioning of the front wheel: Use the jack to lift the front wheel and shake the front wheel with your hand to see if there is left and right, shaking up and down. If there is a large gap, it indicates that the bearing and other parts of the vehicle are seriously worn; 4. Inspection of shock absorbers and suspension systems: Press down firmly on the corner of the front of the car. After relaxing, the vehicle will automatically spring back and bounce freely 2-3 times. If this is not the case, the shock absorber or the suspension spring is working. bad. After a series of inspections have been completed, if the prices are appropriate, then congratulations on finding a second-hand truck worthy of purchase. The cemented carbide seal-ring can be divided into both or the kinetic seal-ring and staticseal-ring, and constitutes mechanic seal together with the spring, rubber seal-ring and steel jacket. Seal Ring Seal Ring,Hard Alloy Sealing Ring,Hard Metal Sealing Ring,Cemented Carbide Mechanical Seal Ring Zhengtong Special Material Factory Hi&New Tech Zone Chengdu , https://www.ztferre.com
The precision seal-ring is made of high quality materials by an advanced process, having very complicated shapes, high accuracy, stable mechanic properties, much higher wear and corrosion resistance, and a service life of more than twenty thousand hours in the normal case.
The Seal Ring will be used mainly for waste water pump,water discharge pump for mines, centrifugal pump, centrifuge, slag slurry pump and slurry abrasion and corrosion. The seal-ring will be installed on the pump body andratatingaxle, and forms through the end face of the kinetic and static ring a liquid or gas seal.