直流電機維修換向器修理后檢查方法：

1、用(yong)小鐵錘輕敲換向(xiang)片，依據發(fa)出的聲(sheng)音來判斷(duan)安裝是否牢固。若發(fa)出較清(qing)脆的聲(sheng)音，表(biao)明換向(xiang)器裝配牢固；如果發(fa)出空(kong)殼聲(sheng)，則表(biao)明換向(xiang)器松弛，要重新(xin)裝配。

2、檢查換(huan)向片(pian)的軸向平(ping)行度(du)，使換(huan)向片(pian)沿軸線的偏斜(xie)度(du)不超過片(pian)間云母片(pian)的厚(hou)度(du)，否(fou)則會(hui)造成換(huan)向不良(liang)。

3、做對(dui)地耐壓(ya)(ya)試(shi)驗，試(shi)驗電壓(ya)(ya)通常為(wei)兩倍的額定電壓(ya)(ya)加1000V,持續時間為(wei)1min。

4、用220V檢驗燈逐片(pian)檢查(cha)片(pian)間是否(fou)短路，若有短路應加以排除。

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