Neu khoi dong nhieu lan ma xe ban khong no, trong luc biet chac he thong xang, hoi... tot thi nguyen nhan co the la hong pan lua. Viec phai lam la tim ra pan lua de khac phuc, bao gom kiem tra bugi, mo bin lua va mo bin suon. Kiem tra tu bugi Dung chan chong, bat khoa dien o che do On, thao bugi ra khoi quy lat, dat dau day (noi vao bugi) cach than may khoang 5-10 ly, dap can khoi dong va quan sat tia lua (chu y phai de xa che hoa khi tranh bat lua). Neu tia lua dien noi dau day bugi manh, keu gion tanh tach, mau xanh tim va day, chung to dong dien tot, dong co khong no duoc la do bugi. Neu tia lua noi dau day bugi yeu, mau vang hoe hoac nho li ti, chung to he thong dien da co van de. Cac kha nang co the xay ra la: hong bo vit lua (do, ro), can lua sai, mo bin lua hong, mo bin suon hong hoac tu dien hong. Neu da mai dua, thay moi bo vit lua, nhung tia lua dien van khong tot, phai tien hanh thao vo lang, thao cac chi tiet cua bo danh lua de kiem tra. Kiem tra mo bin lua Mo bin lua thuong bi hong do cham mat, bi doan mach (cac vong mo bin cham nhau) va bi chay. Kiem tra mo bin lua nhu sau: Thao cac te duoi ca, nha moi han dau day mo bin lua khoi tu dien, thao vit de lay mo bin ra khoi mam dien. Co the kiem tra nhanh bang cach quan sat mau sac lop son cach dien quanh mo bin lua, neu thay co vet chay xam, am khoi hay tray xuoc, phai thay moi ngay. Neu vo ngoai cua mo bin khong co van de ma dien van yeu thi phai mang mo bin den hieu sua xe de kiem tra bang do chuyen dung. Kiem tra mo bin suon Mo bin suon co tac dung bien nguon dien tu 6V thanh 8.000 den 15.000V, dua toi bugi tao thanh tia lua, dot hon hop khi. No duoc gan voi khung xe phia duoi thung xang. Ve mat ket cau, mo bin suon gom hai cuon day chung tren mot loi. Cuon so cap cuon bang day 0,40 ly, 250 vong. Cuon thu cap cuon bang day 0,06 ly, cuon 20.000 vong. Cac su co cua mo bin suon thuong la cuon so cap bi dut, cuon thu cap bi chap mach lam mat hay yeu dong dien thu cap. Ca hai truong hop deu phai thay moi mo bin. Kiem tra mo bin rat phuc tap, vi vay neu khong thao thi chu xe nen mang ra tho de co ket qua chac chan. Anh Tuan |
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Viet Bao
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