背负式手动喷雾器,是农村常用的施药器械。笔者从事农机推广工作,又经常下乡,近年来已为农户安装修理喷雾器一百多部,对排除喷雾器的主要故障,积累了一些经验,现介绍如下。1.喷头滴水但喷不出雾一般是喷头片孔、喷头内斜孔或套管内滤网堵塞所致,也可能是进水阀内玻璃球被脏物缠 Knapsack sprayer, is commonly used in rural areas spraying equipment. The author engaged in the promotion of agricultural machinery, but also often go to the countryside, in recent years for farmers to install more than one hundred repair sprayer, sprayer exclude the main failure, accumulated some experience, are presented below. 1 nozzle dripping but not spray fog is generally nozzle hole, the nozzle within the hole or casing caused by blockage of the filter may also be the inlet valve glass ball is dirt wrapped