Where to Position a Car Jack When in Use?
2 Answers
When using a car jack, position it directly beneath the chassis support point. Below are specific details about automotive jacks: 1. Application Scope: The application of jacks extends beyond automobiles; many industrial equipment also require this compact lifting device. A common working scenario for car jacks is tire replacement. In cases of tire leaks or blowouts on highways or remote roads where immediate rescue is unavailable, a jack can be used for self-replacement. 2. Usage Precautions: Typically, the jack should be placed on the raised section of the side rail closest to the tire being replaced, ensuring the grooved end of the jack securely interlocks with it. Before lifting, it's advisable to loosen the nuts of the tire to be removed by one turn before raising the vehicle.
Last time I helped my neighbor change a tire and learned a key point: The raised metal edge below the door is the correct jacking point—never jack up the fuel tank or plastic underbody panels! Make sure the jack’s saddle aligns with the frame rail position, and you hear a 'click' to confirm it’s securely seated. Operating on a slope is especially dangerous; I once nearly had a rollaway while changing a tire on my neighborhood incline—now I always carry wheel chocks. A veteran driver’s reminder: Always engage the parking brake before lifting, and wedge rocks against the tires fore and aft for extra safety. After all, a falling car body is no joke!
