If you're performing your own repairs underneath a car and have it raised in the air, ensure that the lifting device you use is secure. Never lift a car that is not on level ground or on a firm surface. https://www.webwiki.it/auto-works.cc/%D8%A8%D8%B7%D8%A7%D8%B1%D9%8A%D8%A9-%D9%87%D8%A7%D9%86%D9%83%D9%88%D9%83-85-%D8%A7%D9%85%D8%A8%D9%8A%D8%B1-mf85r-55-%D8%A8%D8%B7%D8%A7%D8%B1%D9%8A%D8%A9-%D9%87%D8%A7%D9%86%D9%83%D9%88%D9%83-mf85r-550