采用副圈的小四轮拖拉机前轮胎拆装比较麻烦。我们自制了一个简单的拆装工具,叫副圈压盘器,使用较为方便(如图)。拆卸时,拧紧丝杆5,压爪3把副圈2向里压入,露出钢丝卡簧7,用手可直接抠出。然后,松出丝杆,拿下拉钩4,副圈和轮胎即可 Small four-wheel tractor front tire with the next circle disassembly is too much trouble. We made a simple disassembly tool, called Vice lap press, use more convenient (pictured). When disassembling, tighten the screw rod 5, the pressure claw 3 presses the secondary ring 2 inwards, exposes the wire retainer 7 and can pull out directly by hand. Then, loosen the screw, take the hook 4, the secondary ring and the tire can be