Block front fork of valve disassemble tool onto cylinder head sub bolt hole, pressing this tool downwards by a force application bar until the two pieces of lock are falling down, see chart 3b.

• 在拆卸气门锁片时，用气门拆卸工具的前叉卡在缸盖付螺栓上，然后用加力杆向下压动气门拆卸工具，直到两锁片脱出为止，如图3b。