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如果500型万用表因过载使表头轴尖与动圈框脱落(动圈引线未断) 无法使用,不妨采用一种较为简便的修复方法: 首先拆下整个表头,用小螺丝刀将轴尖脱落一端的宝石轴承拧松,将另一端的宝石轴承慢慢上紧,直至动圈框与圆柱形铁心截面接触后不活动为止。然后将表头水平放稳,轴尖脱落部分朝上,用摄子夹住脱落的轴尖,再将游丝从导向件焊爪上焊下,把轴尖、游丝及轴座移至动圈框中心(原脱落处),放稳后将少量的502胶水滴在轴座与动圈框之间,待粘牢后将宝石轴承调到适当位置,放入轴尖,再将游丝焊回导向件的焊爪上,最后调节指针回零,吹一下指针,确认表头工作无异常现象后,将表
If the 500 multimeter makes it impossible to use the indicator head and the moving coil frame due to overload, it may be easier to adopt a simple repair method. First, remove the entire meter head and remove the shaft tip with a small screwdriver One end of the gem bearing loose, the other side of the gem bearing slowly tightened until the moving frame and cylindrical core cross-section contact is not active so far. Then the meter level and stability, the shaft off part of the upward, with the photon to grip off the shaft, and then from the guide welding seam welded to the shaft, hairspring and shaft seat to moving circle box Center (the original off place), put a small amount of 502 glue after the release drops between the shaft seat and the moving frame, until the gelatin bearing firmly adjusted to the appropriate position into the shaft, and then back to the spring wire guide The welding claw, the final adjustment of the pointer back to zero, blow the pointer to confirm the header work no abnormalities, the table