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7655型凿岩机是作为一种新的装备补充到连队与Y2-25型凿岩机同时使用的。起初经常出现不易启动和连续工作几分钟就有停转及断钻杆等现象。经反复研究与试验证明:①必须具备4公斤/厘米~2的气压;②内部零件接触表面不能破坏。改进使用方法后,工效显著提高。原来打一排眼需3个小时,现在仅需55分钟。实践中我们体会到,这种凿岩机具有结构简单、紧凑、转速快、效率高、重量轻、保养
The 7655 rock drill is added as a new type of equipment to the company and the Y2-25 Rock Drill. In the beginning, there were often phenomena such as stalling and cutting off the drill pipe when it was difficult to start and work for several minutes. After repeated studies and tests have proved: 1 must have 4 kg / cm ~ 2 air pressure; 2 internal parts contact surface can not be destroyed. After improving the use of methods, ergonomics have improved significantly. It took 3 hours to play a row of eyes and now it only takes 55 minutes. In practice, we realize that this rock drill has a simple structure, compactness, fast speed, high efficiency, light weight, and maintenance