拖拉机在道路恶劣条件下行驶时,内胎很容易被刺破漏气,而要频繁地拆装外胎。拆装外胎大多用手工操作,使用小撬棍、扳手柄、起子等工具,如拆装方法不对或用力过猛,很容易把外胎边缘的钢丝撬断。钢丝折断后,内胎一经充气,在钢丝折断处外胎鼓包(内胎气压升高后,向薄弱处凸起),一旦拖拉机 When the tractor is driving under harsh road conditions, the inner tube can easily be punctured and leaked, and the outer tube needs to be disassembled frequently. Most of the disassembly of the tire casing by hand operation, the use of small crowbar, wrench handle, screwdriver and other tools, such as the disassembly method is not right or excessive force, it is easy to pry off the edge of the tire wire. After breaking the wire, the inner tube once inflated, broken wire at the outer drum bulge (inner tube pressure rises to the weak Department raised), once the tractor