N?u qu?n ¨¢o c?a b?n v?n ??t nh? gi?t sau chu k? v?t, h?y th?c hi?n thao t¨¢c sau: 1. Nh?c n?p trong chu k? v?t. N?u l?ng gi?t kh?ng quay, c¨® th? kh?p n?i truy?n ??ng b? h?ng. H?y g?i th? s?a ch?a ??n thay th? b? ph?n n¨¤y. 2. N?u l?ng gi?t v?n quay, h?y ki?m tra l?i t?i tr?ng ?? ??m b?o n¨® c?n b?ng. N?u b?n ch?c ch?n t?i tr?ng ?? c?n b?ng nh?ng qu?n ¨¢o v?n kh?ng ???c v?t kh?, b?n c¨® th? c?n ph?i thay th? puli ??ng c?, ? tr?c l?ng gi?t, d?y ?ai ho?c b? ly h?p b? h?ng. 3. H?y ch?c ch?n ?ng tho¨¢t n??c kh?ng b? g?p kh¨²c. Sau ?¨®, ki?m tra v?u tr¨ºn n?p c¨® ch?m v¨¤o c?ng t?c n?p kh?ng; n?u n¨® b? h?ng, m¨¢y gi?t c¨® th? d?ng trong chu k? x?. Nh?n v¨¤ nh? c?ng t?c n?p. N?u m?i l?n nh?n nh? kh?ng ph¨¢t ra ti?ng click, n¨® c¨® th? b? h?ng. Th¨¢o c?ng t?c, ki?m tra, v¨¤ thay th? n?u c?n. 4. M¨¢y b?m n??c c¨® th? b? h?ng ho?c b? t?c, ho?c b? ?i?u khi?n b? h?ng, h?y g?i th? s?a ch?a ??n thay th? b? ph?n n¨¤y.