After the machinery, second-hand excavator market in Lhasa, prohibit any person standing in the bucket, arm and shovel on track and ensure safety in production. Excavator at work, prohibit any person working below the bucket stays within range or radius of gyration or walking, hand Hitachi excavator market, non-fumble into the cab drivers can not tamper with the train drivers can not avoid electrical damage to equipment. Derailer wear on W4-60 excavator uses a mechanical shift as the transmission mechanism, imported second-hand excavator market, this transmission mechanism is fixed upon sliding sets of teeth in the tooth sleeve axial movement and with the gear a driven gear meshed to achieve shifting. In the frequent shifting process, each gear tooth end surface of the cone of ground easily, resulting in lower performance and cause its engagement 'skip-shift'. Used excavator market, Jin Hao used excavators, Beijing second-hand excavator market by the Shanghai Used Construction Machinery Co., Ltd. Jin Hao. Shanghai Jin Hao Used Construction Machinery Co. (www.jinhaosh.cn) is the Shanghai Minhang District, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Kim Ho used excavators in leadership with the staff warmly welcome all inquiries negotiations to create jinhao used excavators better future.