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NK-302型起重机采用双转向桥、外助力结构。转向助力器由主助力器和副助力器两部分组成。其拆检、装配的具体技术要求见附表。 1.拆卸 (1)放出液压油。放油时可左、右转动转向盘,使之放得彻底。 (2)按照球座→动力缸→控制阀→促动器总成的顺序分解助力器总成。
NK-302 cranes with double steering bridge, external power structure. Steering booster by the main booster and auxiliary booster two parts. The dismantling seized, the assembly of the specific technical requirements, see the attached table. 1. Disassembly (1) Release hydraulic oil. When the oil can be left, right turn the steering wheel to make it completely. (2) Disassemble the booster assembly in the order of ball seat → power cylinder → control valve → actuator assembly.