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一台加藤NK-200BE型全液压汽车起重机在臂杆变幅时,仰角变大的动作非常缓慢。此现象一年前即开始出现且日益严重,发展到现在(天气炎热)几乎不能动作,同时臂杆外伸也很缓慢。
A Kato NK-200BE full hydraulic truck crane in the boom amplitude, the elevation angle of action is very slow. This phenomenon began to appear a year ago and worsen. It has developed to the present (the weather is very hot) and can hardly move at the same time, and the extension of the boom is very slow.