汽车修理厂如果缺乏轻便、高效的专用工具,干起活来就很不方便,往往增加修理费用。经常还看到,为了更换固定在孔内的螺栓或轴承内的轴颈,而由凿子和锤子把它取出,这样就有许多零件被损坏。现有的许多拔出器,有的力量不足,有的是固定装置,由于与电源或压力源相连接,增加了合理使用的困难,在修理载重车时尤为如此。 Auto repair shop in the absence of light, efficient special tools, it is very inconvenient to work, often increasing the cost of repairs. It has also often been seen that in order to replace a journal or bolt fixed in a bore, the shaft is removed by a chisel and a hammer so that many parts are damaged. Many of the existing pullers are inadequate, some are stationary devices, and add to the difficulties of proper use due to their connection to a power or pressure source, especially when repairing a truck.