Specifications: 1,Spindle aligning tool; It adopts general alignment principle, and it is accurate, flexible and easy to operate. 2,Bolster knockout It adopts special dismantlement method to change bolster and upper bearing block but no damage to bolster, and it is easy to operate. 3,Spindle cleaner 4,Adopted high pressure oil pump, back and forward spray and wash to keep the spindle insert clean. It is high efficient, easy to operate, and can reduce the labour intensity of maintainer and save materials. It is suitable for wool and cotton spinning spindles.